1 2 3 | <?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title xmlns:d="http://docbook.org/ns/docbook">Index</title><link rel="stylesheet" type="text/css" href="Common_Content/css/default.css" /><link rel="stylesheet" media="print" href="Common_Content/css/print.css" type="text/css" /><meta xmlns:d="http://docbook.org/ns/docbook" name="generator" content="not publican" /><meta xmlns:d="http://docbook.org/ns/docbook" name="package" content="" /><link rel="home" href="index.html" title="SystemTap Beginners Guide" /><link rel="up" href="index.html" title="SystemTap Beginners Guide" /><link rel="prev" href="appe-Publican-Revision_History.html" title="Appendix A. Revision History" /></head><body><p id="title"></p><ul class="docnav top"><li class="previous"><a accesskey="p" href="appe-Publican-Revision_History.html"><strong>Prev</strong></a></li><li class="home">SystemTap Beginners Guide</li><li class="next"></li></ul><div class="index"><div class="titlepage"><div><div><h1 class="title"><a id="idm46413335670576"> </a>Index</h1></div></div></div><div xmlns:xlink="http://www.w3.org/1999/xlink" class="index"><div class="indexdiv"><h3>Symbols</h3><dl><dt id="ientry-idm46413326440080">$count</dt><dd><dl><dt>sample usage</dt><dd><dl><dt>local variables, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413324617760">$return</dt><dd><dl><dt>sample usage</dt><dd><dl><dt>local variables, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a>, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413321414272">@avg (integer extractor)</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413328533296">@count (integer extractor)</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413322753824">@max (integer extractor)</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413322107408">@min (integer extractor)</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413330834560">@sum (integer extractor)</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>A</h3><dl><dt id="ientry-idm46413326824192">adding values to statistical aggregates</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413324926336">advantages of cross-instrumentation, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt id="ientry-idm46413321815168">aggregate element not found</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413323039808">aggregates (statistical)</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd><dt id="ientry-idm46413327473312">aggregation overflow</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413328939824">algebraic formulas using arrays</dt><dd><dl><dt>reading values from arrays</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413316522544">architecture notation, determining, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt id="ientry-idm46413326105856">architecture of SystemTap, <a class="indexterm" href="understanding-how-systemtap-works.html#understanding-architecture-tools">Architecture</a></dt><dt id="ientry-idm46413318346528">array locals not supported</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413324203424">array operations</dt><dd><dl><dt>assigning associated values, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt><dd><dl><dt>associating timestamps to process names, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt></dl></dd><dt>associative arrays, <a class="indexterm" href="arrayoperators.html">Array Operations in SystemTap</a></dt><dt>clearing arrays/array elements, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dd><dl><dt>delete operator, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>multiple array operations within the same probe, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>virtual file system reads (non-cumulative), tallying, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt></dl></dd><dt>computing for statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dd><dl><dt>@avg (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@count (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@max (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@min (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@sum (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>adding values to statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>count (operator), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>extracting data collected by statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd><dt>conditional statements, using arrays in, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt><dd><dl><dt>testing for array membership, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt></dl></dd><dt>deleting arrays and array elements, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>incrementing associated values, <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt><dd><dl><dt>tallying virtual file system reads (VFS reads), <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt></dl></dd><dt>multiple elements in an array, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>processing multiple elements in an array, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dd><dl><dt>cumulative virtual file system reads, tallying, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>foreach, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>iterations, processing elements in an array as, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>limiting the output of foreach, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>ordering the output of foreach, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd><dt>reading values from arrays, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dd><dl><dt>computing for timestamp deltas, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dt>empty unique keys, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dt>using arrays in simple computations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413324804592">arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt><dd><dl><dt>(see also <a href="#ientry-idm46413329078912">associative arrays</a>)</dt></dl></dd><dt id="ientry-idm46413322849504">assigning associated values</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt><dd><dl><dt>associating timestamps to process names, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt></dl></dd><dt>associating timestamps to process names</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413318871152">associated values</dt><dd><dl><dt>introduction</dt><dd><dl><dt>arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413329597920">associating timestamps to process names</dt><dd><dl><dt>assigning associated values</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413329078912">associative arrays</dt><dd><dl><dt>introduction, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt><dd><dl><dt>associated values, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt><dt>example, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt><dt>index expression, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt><dt>key pairs, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt><dt>syntax, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt><dt>unique keys, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413316430464">asynchronous events</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>B</h3><dl><dt id="ientry-idm46413316436608">begin</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt id="ientry-idm46413325080288">building instrumentation modules from SystemTap scripts, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt id="ientry-idm46413329410032">building kernel modules from SystemTap scripts, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></div><div class="indexdiv"><h3>C</h3><dl><dt id="ientry-idm46413322095952">call graph tracing</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt id="ientry-idm46413329044864">capabilities of SystemTap</dt><dd><dl><dt>Introduction, <a class="indexterm" href="intro-systemtap-vs-others.html">SystemTap Capabilities</a></dt></dl></dd><dt id="ientry-idm46413316704560">changes to file attributes, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatch2sect.html">Monitoring Changes to File Attributes</a></dt></dl></dd><dt id="ientry-idm46413314878736">clearing arrays/array elements</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dd><dl><dt>delete operator, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>multiple array operations within the same probe, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>virtual file system reads (non-cumulative), tallying, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413329012096">command-line arguments</dt><dd><dl><dt>SystemTap handler constructs</dt><dd><dl><dt>handlers, <a class="indexterm" href="commandlineargssect.html">Command-Line Arguments</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413325081696">compiling instrumentation/kernel modules from SystemTap scripts, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt id="ientry-idm46413326133856">components</dt><dd><dl><dt>SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413327861392">computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dd><dl><dt>@avg (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@count (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@max (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@min (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@sum (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>adding values to statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>count (operator), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>extracting data collected by statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413330625504">computing for timestamp deltas</dt><dd><dl><dt>reading values from arrays</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413318481872">conditional operators</dt><dd><dl><dt>conditional statements</dt><dd><dl><dt>handlers, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413321330848">conditional statements, using arrays in</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt><dd><dl><dt>testing for array membership, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413317025568">CONFIG_HZ, computing for, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt><dt id="ientry-idm46413328231936">contended user-space locks (futex contentions), identifying</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt></dl></dd><dt id="ientry-idm46413318695376">copy fault</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413314882112">count operator</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array (operator), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413325720416">counting function calls</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt></dl></dd><dt id="ientry-idm46413322423184">CPU ticks</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt></dl></dd><dt id="ientry-idm46413321850736">cpu()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt></dl></dd><dt id="ientry-idm46413318382960">cross-compiling, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt id="ientry-idm46413329408112">cross-instrumentation</dt><dd><dl><dt>advantages of, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>building kernel modules from SystemTap scripts, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>configuration</dt><dd><dl><dt>host system and target system, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd><dt>generating instrumentation from SystemTap scripts, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>host system, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>instrumentation module, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>target kernel, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt>target system, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd><dt id="ientry-idm46413321863968">ctime()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt></dl></dd><dt id="ientry-idm46413321562464">ctime(), example of usage</dt><dd><dl><dt>script examples, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt></dl></dd><dt id="ientry-idm46413326029968">cumulative I/O, tracking</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt></dl></dd><dt id="ientry-idm46413322197696">cumulative virtual file system reads, tallying</dt><dd><dl><dt>processing multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>D</h3><dl><dt id="ientry-idm46413327658288">delete operator</dt><dd><dl><dt>clearing arrays/array elements</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413324884448">determining architecture notation, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt id="ientry-idm46413327000944">determining the kernel version, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information Packages Manually</a></dt><dt id="ientry-idm46413330169632">determining time spent in kernel and user space</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt></dl></dd><dt id="ientry-idm46413316596784">device I/O, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd><dt id="ientry-idm46413330983264">device number of a file (integer format)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd><dt id="ientry-idm46413330745344">disk I/O traffic, summarizing</dt><dd><dl><dt>script examples, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt></dl></dd><dt id="ientry-idm46413325473472">division by 0</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413329988480">documentation goals</dt><dd><dl><dt>Introduction, <a class="indexterm" href="introduction.html#goals">Documentation Goals</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>E</h3><dl><dt id="ientry-idm46413322536512">embedded code in unprivileged script</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413323580352">empty unique keys</dt><dd><dl><dt>reading values from arrays</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413316443328">end</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt id="ientry-idm46413330574080">errors</dt><dd><dl><dt>parse/semantics error, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dd><dl><dt>embedded code in unprivileged script, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>expected symbol/array index expression, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>grammatical/typographical script error, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>guru mode, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>invalid values to variables/arrays, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>libdwfl failure, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>no match for probe point, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>non-global arrays, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>probe mismatch, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>type mismatch for identifier, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved function call, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved target-symbol expression, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved type for identifier, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>variable modified during 'foreach', <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd><dt>runtime errors/warnings, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dd><dl><dt>aggregate element not found, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>aggregation overflow, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>copy fault, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>division by 0, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>MAXACTION exceeded, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>MAXNESTING exceeded, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>number of errors: N, skipped probes: M, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>pointer dereference fault, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413326100096">event types</dt><dd><dl><dt>Understanding How SystemTap Works, <a class="indexterm" href="understanding-how-systemtap-works.html">Understanding How SystemTap Works</a></dt></dl></dd><dt id="ientry-idm46413326191328">Events</dt><dd><dl><dt>asynchronous events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>begin, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>end, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>examples of synchronous and asynchronous events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>introduction, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>kernel.function("function"), <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>kernel.trace("tracepoint"), <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>module("module"), <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>synchronous events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>syscall.system_call, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>timer events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>user-space, <a class="indexterm" href="userspace-probing.html#uevents">User-Space Events</a></dt><dt>vfs.file_operation, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt>wildcards, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt id="ientry-idm46413326095008">events and handlers, <a class="indexterm" href="understanding-how-systemtap-works.html">Understanding How SystemTap Works</a></dt><dt id="ientry-idm46413316395344">events wildcards, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt id="ientry-idm46413321961328">example</dt><dd><dl><dt>introduction</dt><dd><dl><dt>arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413328815248">example of multiple command-line arguments</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt id="ientry-idm46413326200624">examples of synchronous and asynchronous events</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt id="ientry-idm46413328491424">examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html">Useful SystemTap Scripts</a></dt><dd><dl><dt>call graph tracing, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>CPU ticks, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt><dt>ctime(), example of usage, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt><dt>determining time spent in kernel and user space, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt><dt>file device number (integer format), <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>futex (lock) contentions, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt><dt>futex system call, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt><dt>identifying contended user-space locks (futex contentions), <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt><dt>if/else conditionals, alternative syntax, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a></dt><dt>inode number, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>monitoring changes to file attributes, <a class="indexterm" href="inodewatch2sect.html">Monitoring Changes to File Attributes</a></dt><dt>monitoring device I/O, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt><dt>monitoring I/O block time, <a class="indexterm" href="ioblktimesect.html">Periodically Print I/O Block Time</a></dt><dt>monitoring I/O time, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt><dt>monitoring incoming TCP connections, <a class="indexterm" href="useful-systemtap-scripts.html#tcpconnectionssect">Monitoring Incoming TCP Connections</a></dt><dt>monitoring polling applications, <a class="indexterm" href="timeoutssect.html">Monitoring Polling Applications</a></dt><dt>monitoring reads and writes to a file, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>monitoring system calls, <a class="indexterm" href="topsyssect.html">Tracking Most Frequently Used System Calls</a></dt><dt>monitoring system calls (volume per process), <a class="indexterm" href="syscallsbyprocpidsect.html">Tracking System Call Volume Per Process</a></dt><dt>monitoring TCP packets, <a class="indexterm" href="useful-systemtap-scripts.html#tcpdumplikesect">Monitoring TCP Packets</a></dt><dt>multiple command-line arguments, example of, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>net/socket.c, tracing functions from, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt><dt>network profiling, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a>, <a class="indexterm" href="useful-systemtap-scripts.html#dropwatchsect">Monitoring Network Packets Drops in Kernel</a></dt><dt>stat -c, determining file device number (integer format), <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>stat -c, determining whole device number, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt><dt>summarizing disk I/O traffic, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt><dt>tallying function calls, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt><dt>thread_indent(), sample usage, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>timer.ms(), sample usage, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt><dt>timer.s(), sample usage, <a class="indexterm" href="timeoutssect.html">Monitoring Polling Applications</a>, <a class="indexterm" href="topsyssect.html">Tracking Most Frequently Used System Calls</a></dt><dt>tracing functions called in network socket code, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt><dt>tracking cumulative I/O, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt><dt>trigger function, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>usrdev2kerndev(), <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt><dt>whole device number (usage as a command-line argument), <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd><dt id="ientry-idm46413328018000">exceeded MAXACTION</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413316755840">exceeded MAXNESTING</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413328085584">exit()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt></dl></dd><dt id="ientry-idm46413324759872">expected symbol/array index expression</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413324581040">extracting data collected by statistical aggregates</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>F</h3><dl><dt id="ientry-idm46413320363600">feedback</dt><dd><dl><dt>contact information for this manual, <a class="indexterm" href="pr01s02.html">We Need Feedback!</a></dt></dl></dd><dt id="ientry-idm46413324034176">file attributes, monitoring changes to</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatch2sect.html">Monitoring Changes to File Attributes</a></dt></dl></dd><dt id="ientry-idm46413318252608">file device number (integer format)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd><dt id="ientry-idm46413323174432">file reads/writes, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd><dt id="ientry-idm46413324346864">flight recorder mode, <a class="indexterm" href="using-usage.html#flight-recorder">SystemTap Flight Recorder Mode</a></dt><dd><dl><dt>file mode, <a class="indexterm" href="using-usage.html#file-flight-recorder">File Flight Recorder</a></dt><dt>in-memory mode, <a class="indexterm" href="using-usage.html#memory-flight-recorder">In-memory Flight Recorder</a></dt></dl></dd><dt id="ientry-idm46413329521680">for loops</dt><dd><dl><dt>conditional statements</dt><dd><dl><dt>handlers, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413323064320">foreach</dt><dd><dl><dt>processing multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413324293808">format</dt><dd><dl><dt>introduction</dt><dd><dl><dt>arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413326157632">format and syntax</dt><dd><dl><dt>printf(), <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt>SystemTap handler constructs</dt><dd><dl><dt>handlers, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt></dl></dd><dt>SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413328107040">format specifiers</dt><dd><dl><dt>printf(), <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt></dl></dd><dt id="ientry-idm46413328100880">format strings</dt><dd><dl><dt>printf(), <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt></dl></dd><dt id="ientry-idm46413329032640">function call (unresolved)</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413328729520">function calls (incoming/outgoing), tracing</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt id="ientry-idm46413321930096">function calls, tallying</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt></dl></dd><dt id="ientry-idm46413326177984">functions, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dd><dl><dt>cpu(), <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt>ctime(), <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt>gettimeofday_s(), <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt>pp(), <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt>SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd><dt>target(), <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt>thread_indent(), <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt>tid(), <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt>uid(), <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt></dl></dd><dt id="ientry-idm46413328084896">functions (used in handlers)</dt><dd><dl><dt>exit(), <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt></dl></dd><dt id="ientry-idm46413329825872">functions called in network socket code, tracing</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt></dl></dd><dt id="ientry-idm46413330778224">futex (lock) contentions</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt></dl></dd><dt id="ientry-idm46413322727120">futex contention, definition</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt></dl></dd><dt id="ientry-idm46413323149568">futex contentions, identifying</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt></dl></dd><dt id="ientry-idm46413316599024">futex system call</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>G</h3><dl><dt id="ientry-idm46413321858240">gettimeofday_s()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt></dl></dd><dt id="ientry-idm46413329386880">global</dt><dd><dl><dt>SystemTap handler constructs</dt><dd><dl><dt>handlers, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413327443264">goals, documentation</dt><dd><dl><dt>Introduction, <a class="indexterm" href="introduction.html#goals">Documentation Goals</a></dt></dl></dd><dt id="ientry-idm46413324365520">grammatical/typographical script error</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413323805440">guru mode</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>H</h3><dl><dt id="ientry-idm46413328126640">handler functions, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt id="ientry-idm46413316466176">handlers</dt><dd><dl><dt>conditional statements, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dd><dl><dt>conditional operators, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dt>for loops, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dt>if/else, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dt>while loops, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt></dl></dd><dt>introduction, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt>SystemTap handler constructs, <a class="indexterm" href="scriptconstructions.html">Basic SystemTap Handler Constructs</a></dt><dd><dl><dt>command-line arguments, <a class="indexterm" href="commandlineargssect.html">Command-Line Arguments</a></dt><dt>global, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt><dt>syntax and format, <a class="indexterm" href="scriptconstructions.html">Basic SystemTap Handler Constructs</a></dt><dt>variable notations, <a class="indexterm" href="commandlineargssect.html">Command-Line Arguments</a></dt><dt>variables, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt></dl></dd><dt>target variables, <a class="indexterm" href="targetvariables.html">Target Variables</a></dt></dl></dd><dt id="ientry-idm46413326096464">handlers and events, <a class="indexterm" href="understanding-how-systemtap-works.html">Understanding How SystemTap Works</a></dt><dd><dl><dt>SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413322637856">heaviest disk reads/writes, identifying</dt><dd><dl><dt>script examples, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt></dl></dd><dt id="ientry-idm46413330922000">host system</dt><dd><dl><dt>cross-instrumentation, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd><dt id="ientry-idm46413316677248">host system and target system</dt><dd><dl><dt>cross-instrumentation</dt><dd><dl><dt>configuration, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>I</h3><dl><dt id="ientry-idm46413330261600">I/O block time, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="ioblktimesect.html">Periodically Print I/O Block Time</a></dt></dl></dd><dt id="ientry-idm46413316730848">I/O monitoring (by device)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd><dt id="ientry-idm46413328964208">I/O time, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt></dl></dd><dt id="ientry-idm46413328972592">I/O traffic, summarizing</dt><dd><dl><dt>script examples, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt></dl></dd><dt id="ientry-idm46413325051072">identifier type mismatch</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413324671296">identifying contended user-space locks (futex contentions)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt></dl></dd><dt id="ientry-idm46413328824384">identifying heaviest disk reads/writes</dt><dd><dl><dt>script examples, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt></dl></dd><dt id="ientry-idm46413324836448">if/else</dt><dd><dl><dt>conditional statements</dt><dd><dl><dt>handlers, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413327297744">if/else conditionals, alternative syntax</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a></dt></dl></dd><dt id="ientry-idm46413326912848">if/else statements, using arrays in</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt></dl></dd><dt id="ientry-idm46413327941104">incoming TCP connections, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#tcpconnectionssect">Monitoring Incoming TCP Connections</a></dt></dl></dd><dt id="ientry-idm46413314915488">incoming/outgoing function calls, tracing</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt id="ientry-idm46413330550448">incrementing associated values</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt><dd><dl><dt>tallying virtual file system reads (VFS reads), <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413318483808">index expression</dt><dd><dl><dt>introduction</dt><dd><dl><dt>arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413323362496">initial testing, <a class="indexterm" href="using-systemtap.html#testing">Initial Testing</a></dt><dt id="ientry-idm46413325240512">inode number</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd><dt id="ientry-idm46413318353568">Installation</dt><dd><dl><dt>initial testing, <a class="indexterm" href="using-systemtap.html#testing">Initial Testing</a></dt><dt>kernel information packages, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information Packages Manually</a></dt><dt>kernel version, determining the, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information Packages Manually</a></dt><dt>required packages, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information Packages Manually</a></dt><dt>Setup and Installation, <a class="indexterm" href="using-systemtap.html#using-setup">Installation and Setup</a></dt><dt>systemtap package, <a class="indexterm" href="using-systemtap.html#installproper">Installing SystemTap</a></dt><dt>systemtap-runtime package, <a class="indexterm" href="using-systemtap.html#installproper">Installing SystemTap</a></dt></dl></dd><dt id="ientry-idm46413329681904">instrumentation module</dt><dd><dl><dt>cross-instrumentation, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd><dt id="ientry-idm46413325079392">instrumentation modules from SystemTap scripts, building, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt id="ientry-idm46413323529008">integer extractors</dt><dd><dl><dt>computing for statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413329675120">Introduction</dt><dd><dl><dt>capabilities of SystemTap, <a class="indexterm" href="intro-systemtap-vs-others.html">SystemTap Capabilities</a></dt><dt>documentation goals, <a class="indexterm" href="introduction.html#goals">Documentation Goals</a></dt><dt>goals, documentation, <a class="indexterm" href="introduction.html#goals">Documentation Goals</a></dt><dt>limitations of SystemTap, <a class="indexterm" href="intro-systemtap-limitations.html">Limitations of SystemTap</a></dt><dt>performance monitoring, <a class="indexterm" href="introduction.html">Introduction</a></dt></dl></dd><dt id="ientry-idm46413325471392">invalid division</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413321289920">invalid values to variables/arrays</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413329318992">iterations, processing elements in an array as</dt><dd><dl><dt>processing multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>K</h3><dl><dt id="ientry-idm46413321754864">kernel and user space, determining time spent in</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt></dl></dd><dt id="ientry-idm46413318383200">kernel information packages, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information Packages Manually</a></dt><dt id="ientry-idm46413329409776">kernel modules from SystemTap scripts, building, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt id="ientry-idm46413327000640">kernel version, determining the, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information Packages Manually</a></dt><dt id="ientry-idm46413316387072">kernel.function("function")</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt id="ientry-idm46413316405376">kernel.trace("tracepoint")</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt id="ientry-idm46413325455104">key pairs</dt><dd><dl><dt>introduction</dt><dd><dl><dt>arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>L</h3><dl><dt id="ientry-idm46413321605600">libdwfl failure</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413330905872">limitations of SystemTap</dt><dd><dl><dt>Introduction, <a class="indexterm" href="intro-systemtap-limitations.html">Limitations of SystemTap</a></dt></dl></dd><dt id="ientry-idm46413318479472">limiting the output of foreach</dt><dd><dl><dt>processing multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413323899808">local variables</dt><dd><dl><dt>name, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt>sample usage</dt><dd><dl><dt>$count, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt><dt>$return, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a>, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>M</h3><dl><dt id="ientry-idm46413328020080">MAXACTION exceeded</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413316757920">MAXNESTING exceeded</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413321791936">membership (in array), testing for</dt><dd><dl><dt>conditional statements, using arrays in</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413316414560">module("module")</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt id="ientry-idm46413325171728">monitoring changes to file attributes</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatch2sect.html">Monitoring Changes to File Attributes</a></dt></dl></dd><dt id="ientry-idm46413317751664">monitoring cumulative I/O</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt></dl></dd><dt id="ientry-idm46413329270400">monitoring device I/O</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd><dt id="ientry-idm46413325335392">monitoring I/O block time</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="ioblktimesect.html">Periodically Print I/O Block Time</a></dt></dl></dd><dt id="ientry-idm46413329412160">monitoring I/O time</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt></dl></dd><dt id="ientry-idm46413322579776">monitoring incoming TCP connections</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#tcpconnectionssect">Monitoring Incoming TCP Connections</a></dt></dl></dd><dt id="ientry-idm46413317066048">monitoring polling applications</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="timeoutssect.html">Monitoring Polling Applications</a></dt></dl></dd><dt id="ientry-idm46413323751680">monitoring reads and writes to a file</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd><dt id="ientry-idm46413329271648">monitoring system calls</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="topsyssect.html">Tracking Most Frequently Used System Calls</a></dt></dl></dd><dt id="ientry-idm46413318520128">monitoring system calls (volume per process)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="syscallsbyprocpidsect.html">Tracking System Call Volume Per Process</a></dt></dl></dd><dt id="ientry-idm46413318401808">monitoring TCP packets</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#tcpdumplikesect">Monitoring TCP Packets</a></dt></dl></dd><dt id="ientry-idm46413324159616">multiple array operations within the same probe</dt><dd><dl><dt>clearing arrays/array elements</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413326610528">multiple command-line arguments, example of</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt id="ientry-idm46413324137776">multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>N</h3><dl><dt id="ientry-idm46413323902816">name</dt><dd><dl><dt>local variables, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt></dl></dd><dt id="ientry-idm46413330163040">net/socket.c, tracing functions from</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt></dl></dd><dt id="ientry-idm46413326075360">network profiling</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a>, <a class="indexterm" href="useful-systemtap-scripts.html#dropwatchsect">Monitoring Network Packets Drops in Kernel</a></dt></dl></dd><dt id="ientry-idm46413316699088">network socket code, tracing functions called in</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt></dl></dd><dt id="ientry-idm46413336598640">network traffic, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a>, <a class="indexterm" href="useful-systemtap-scripts.html#dropwatchsect">Monitoring Network Packets Drops in Kernel</a></dt></dl></dd><dt id="ientry-idm46413316810464">no match for probe point</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413329608208">non-global arrays</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413323229744">number of errors: N, skipped probes: M</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>O</h3><dl><dt id="ientry-idm46413324201920">operations</dt><dd><dl><dt>assigning associated values</dt><dd><dl><dt>associating timestamps to process names, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt></dl></dd><dt>associative arrays, <a class="indexterm" href="arrayoperators.html">Array Operations in SystemTap</a></dt><dt>clearing arrays/array elements, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dd><dl><dt>delete operator, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>multiple array operations within the same probe, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>virtual file system reads (non-cumulative), tallying, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt></dl></dd><dt>computing for statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dd><dl><dt>@avg (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@count (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@max (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@min (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>@sum (integer extractor), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>adding values to statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>count (operator), <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt><dt>extracting data collected by statistical aggregates, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd><dt>conditional statements, using arrays in, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt><dd><dl><dt>testing for array membership, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt></dl></dd><dt>deleting arrays and array elements, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt><dt>incrementing associated values, <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt><dd><dl><dt>tallying virtual file system reads (VFS reads), <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt></dl></dd><dt>multiple elements in an array, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>processing multiple elements in an array, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dd><dl><dt>cumulative virtual file system reads, tallying, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>foreach, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>iterations, processing elements in an array as, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>limiting the output of foreach, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>ordering the output of foreach, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd><dt>reading values from arrays, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dd><dl><dt>computing for timestamp deltas, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dt>empty unique keys, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dt>using arrays in simple computations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413323322064">options, stap</dt><dd><dl><dt>Usage, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt id="ientry-idm46413324707136">ordering the output of foreach</dt><dd><dl><dt>processing multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413321958640">overflow of aggregation</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>P</h3><dl><dt id="ientry-idm46413318379280">packages required to run SystemTap, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information Packages Manually</a></dt><dt id="ientry-idm46413336529440">parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dd><dl><dt>embedded code in unprivileged script, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>expected symbol/array index expression, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>grammatical/typographical script error, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>guru mode, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>invalid values to variables/arrays, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>libdwfl failure, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>no match for probe point, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>non-global arrays, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>probe mismatch, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>type mismatch for identifier, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved function call, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved target-symbol expression, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved type for identifier, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>variable modified during 'foreach', <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413329662640">performance monitoring</dt><dd><dl><dt>Introduction, <a class="indexterm" href="introduction.html">Introduction</a></dt></dl></dd><dt id="ientry-idm46413318465280">pointer dereference fault</dt><dd><dl><dt>runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413328821616">polling applications, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="timeoutssect.html">Monitoring Polling Applications</a></dt></dl></dd><dt id="ientry-idm46413314865760">pp()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt></dl></dd><dt id="ientry-idm46413328092288">printf()</dt><dd><dl><dt>format specifiers, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt>format strings, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt>syntax and format, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt></dl></dd><dt id="ientry-idm46413317840720">printing I/O activity (cumulative)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt></dl></dd><dt id="ientry-idm46413322720400">printing I/O block time (periodically)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="ioblktimesect.html">Periodically Print I/O Block Time</a></dt></dl></dd><dt id="ientry-idm46413321676384">probe mismatch</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413316808368">probe point (no match for)</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413326145840">probes</dt><dd><dl><dt>SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413330709952">processing multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt><dt>cumulative virtual file system reads, tallying</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd><dt>foreach</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd><dt>limiting the output of foreach</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd><dt>ordering the output of foreach</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413326082528">profiling the network</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a>, <a class="indexterm" href="useful-systemtap-scripts.html#dropwatchsect">Monitoring Network Packets Drops in Kernel</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>R</h3><dl><dt id="ientry-idm46413321527424">reading values from arrays</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dd><dl><dt>empty unique keys, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt><dt>using arrays in simple computations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd><dt>computing for timestamp deltas</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413322474544">reads/writes to a file, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd><dt id="ientry-idm46413318382208">required packages, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information Packages Manually</a></dt><dt id="ientry-idm46413318380928">RPMs required to run SystemTap, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information Packages Manually</a></dt><dt id="ientry-idm46413324402816">running scripts from standard input, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt id="ientry-idm46413330649824">running SystemTap scripts</dt><dd><dl><dt>Usage, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt id="ientry-idm46413316688160">runtime errors/warnings</dt><dd><dl><dt>understainding SystemTap errors, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dd><dl><dt>aggregate element not found, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>aggregation overflow, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>copy fault, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>division by 0, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>MAXACTION exceeded, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>MAXNESTING exceeded, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>number of errors: N, skipped probes: M, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>pointer dereference fault, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>S</h3><dl><dt id="ientry-idm46413326073728">script examples</dt><dd><dl><dt>call graph tracing, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>CPU ticks, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt><dt>ctime(), example of usage, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt><dt>determining time spent in kernel and user space, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt><dt>file device number (integer format), <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>futex (lock) contentions, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt><dt>futex system call, <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt><dt>identifying contended user-space locks (futex contentions), <a class="indexterm" href="futexcontentionsect.html">Identifying Contended User-Space Locks</a></dt><dt>if/else conditionals, alternative syntax, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a></dt><dt>inode number, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>monitoring changes to file attributes, <a class="indexterm" href="inodewatch2sect.html">Monitoring Changes to File Attributes</a></dt><dt>monitoring device I/O, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt><dt>monitoring I/O block time, <a class="indexterm" href="ioblktimesect.html">Periodically Print I/O Block Time</a></dt><dt>monitoring I/O time, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt><dt>monitoring incoming TCP connections, <a class="indexterm" href="useful-systemtap-scripts.html#tcpconnectionssect">Monitoring Incoming TCP Connections</a></dt><dt>monitoring polling applications, <a class="indexterm" href="timeoutssect.html">Monitoring Polling Applications</a></dt><dt>monitoring reads and writes to a file, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>monitoring system calls, <a class="indexterm" href="topsyssect.html">Tracking Most Frequently Used System Calls</a></dt><dt>monitoring system calls (volume per process), <a class="indexterm" href="syscallsbyprocpidsect.html">Tracking System Call Volume Per Process</a></dt><dt>monitoring TCP packets, <a class="indexterm" href="useful-systemtap-scripts.html#tcpdumplikesect">Monitoring TCP Packets</a></dt><dt>multiple command-line arguments, example of, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>net/socket.c, tracing functions from, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt><dt>network profiling, <a class="indexterm" href="useful-systemtap-scripts.html#nettopsect">Network Profiling</a>, <a class="indexterm" href="useful-systemtap-scripts.html#dropwatchsect">Monitoring Network Packets Drops in Kernel</a></dt><dt>stat -c, determining file device number (integer format), <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt><dt>stat -c, determining whole device number, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt><dt>summarizing disk I/O traffic, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt><dt>tallying function calls, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt><dt>thread_indent(), sample usage, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>timer.ms(), sample usage, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt><dt>timer.s(), sample usage, <a class="indexterm" href="timeoutssect.html">Monitoring Polling Applications</a>, <a class="indexterm" href="topsyssect.html">Tracking Most Frequently Used System Calls</a></dt><dt>tracing functions called in network socket code, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt><dt>tracking cumulative I/O, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt><dt>trigger function, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt><dt>usrdev2kerndev(), <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt><dt>whole device number (usage as a command-line argument), <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd><dt id="ientry-idm46413326125424">scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dd><dl><dt>components, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>events and handlers, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>format and syntax, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>functions, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>probes, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>statement blocks, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413326111664">sessions, SystemTap, <a class="indexterm" href="understanding-how-systemtap-works.html#understanding-architecture-tools">Architecture</a></dt><dt id="ientry-idm46413318357088">Setup and Installation, <a class="indexterm" href="using-systemtap.html#using-setup">Installation and Setup</a></dt><dt id="ientry-idm46413330702960">Stack backtrace</dt><dd><dl><dt>user-space, <a class="indexterm" href="ustack.html">User-Space Stack Backtraces</a></dt></dl></dd><dt id="ientry-idm46413322971168">standard input, running scripts from</dt><dd><dl><dt>Usage, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt id="ientry-idm46413329470304">stap</dt><dd><dl><dt>Usage, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt id="ientry-idm46413316722800">stap options, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt id="ientry-idm46413323337136">stapdev</dt><dd><dl><dt>Usage, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt id="ientry-idm46413323890368">staprun</dt><dd><dl><dt>Usage, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt id="ientry-idm46413316760352">stapusr</dt><dd><dl><dt>Usage, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt id="ientry-idm46413321921728">stat -c, determining file device number (integer format)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd><dt id="ientry-idm46413321737440">stat -c, determining whole device number</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd><dt id="ientry-idm46413326167840">statement blocks</dt><dd><dl><dt>SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413321374544">statistical aggregates</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-aggregates.html">Computing for Statistical Aggregates</a></dt></dl></dd><dt id="ientry-idm46413317091008">summarizing disk I/O traffic</dt><dd><dl><dt>script examples, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a></dt></dl></dd><dt id="ientry-idm46413326195680">synchronous events</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt id="ientry-idm46413314894896">syntax</dt><dd><dl><dt>introduction</dt><dd><dl><dt>arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413326159680">syntax and format</dt><dd><dl><dt>printf(), <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt>SystemTap handler constructs</dt><dd><dl><dt>handlers, <a class="indexterm" href="scriptconstructions.html">Basic SystemTap Handler Constructs</a></dt></dl></dd><dt>SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413326206848">syscall.system_call</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt id="ientry-idm46413330066656">system calls volume (per process), monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="syscallsbyprocpidsect.html">Tracking System Call Volume Per Process</a></dt></dl></dd><dt id="ientry-idm46413329895184">system calls, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="topsyssect.html">Tracking Most Frequently Used System Calls</a></dt></dl></dd><dt id="ientry-idm46413326106384">SystemTap architecture, <a class="indexterm" href="understanding-how-systemtap-works.html#understanding-architecture-tools">Architecture</a></dt><dt id="ientry-idm46413314924864">SystemTap handlers</dt><dd><dl><dt>SystemTap handler constructs, <a class="indexterm" href="scriptconstructions.html">Basic SystemTap Handler Constructs</a></dt><dd><dl><dt>syntax and format, <a class="indexterm" href="scriptconstructions.html">Basic SystemTap Handler Constructs</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413318368080">systemtap package, <a class="indexterm" href="using-systemtap.html#installproper">Installing SystemTap</a></dt><dt id="ientry-idm46413328125408">SystemTap script functions, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt id="ientry-idm46413326126944">SystemTap scripts</dt><dd><dl><dt>introduction, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dd><dl><dt>components, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>events and handlers, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>format and syntax, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>functions, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>probes, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt><dt>statement blocks, <a class="indexterm" href="scripts.html">SystemTap Scripts</a></dt></dl></dd><dt>useful examples, <a class="indexterm" href="useful-systemtap-scripts.html">Useful SystemTap Scripts</a></dt></dl></dd><dt id="ientry-idm46413328903280">SystemTap scripts, how to run, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt id="ientry-idm46413326110384">SystemTap sessions, <a class="indexterm" href="understanding-how-systemtap-works.html#understanding-architecture-tools">Architecture</a></dt><dt id="ientry-idm46413326040144">SystemTap statements</dt><dd><dl><dt>conditional statements, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dd><dl><dt>conditional operators, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dt>for loops, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dt>if/else, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt><dt>while loops, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt></dl></dd><dt>SystemTap handler constructs</dt><dd><dl><dt>command-line arguments, <a class="indexterm" href="commandlineargssect.html">Command-Line Arguments</a></dt><dt>global, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt><dt>variable notations, <a class="indexterm" href="commandlineargssect.html">Command-Line Arguments</a></dt><dt>variables, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413318370368">systemtap-runtime package, <a class="indexterm" href="using-systemtap.html#installproper">Installing SystemTap</a></dt><dt id="ientry-idm46413328491168">systemtap-testsuite package</dt><dd><dl><dt>sample scripts, <a class="indexterm" href="useful-systemtap-scripts.html">Useful SystemTap Scripts</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>T</h3><dl><dt id="ientry-idm46413321192144">tallying function calls</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt></dl></dd><dt id="ientry-idm46413321404336">tallying virtual file system reads (VFS reads)</dt><dd><dl><dt>incrementing associated values</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413321256512">Tapsets</dt><dd><dl><dt>definition of, <a class="indexterm" href="understanding-tapsets.html">Tapsets</a></dt></dl></dd><dt id="ientry-idm46413324909472">target kernel</dt><dd><dl><dt>cross-instrumentation, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd><dt id="ientry-idm46413328886880">target system</dt><dd><dl><dt>cross-instrumentation, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd><dt id="ientry-idm46413324059088">target system and host system</dt><dd><dl><dt>configuration, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt></dl></dd><dt id="ientry-idm46413324237840">target variables, <a class="indexterm" href="targetvariables.html">Target Variables</a></dt><dd><dl><dt>pretty printing, <a class="indexterm" href="targetvariables.html#targetprettyprinting">Pretty Printing Target Variables</a></dt><dt>typecasting, <a class="indexterm" href="typecasting.html">Typecasting</a></dt><dt>user-space, <a class="indexterm" href="utargetvariable.html">Accessing User-Space Target Variables</a></dt><dt>variable availability, <a class="indexterm" href="targetavailable.html">Checking Target Variable Availability</a></dt></dl></dd><dt id="ientry-idm46413323512064">target()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt></dl></dd><dt id="ientry-idm46413316793360">target-symbol expression, unresolved</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413330823312">TCP connections (incoming), monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#tcpconnectionssect">Monitoring Incoming TCP Connections</a></dt></dl></dd><dt id="ientry-idm46413314778368">TCP packets, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#tcpdumplikesect">Monitoring TCP Packets</a></dt></dl></dd><dt id="ientry-idm46413320302320">testing for array membership</dt><dd><dl><dt>conditional statements, using arrays in</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-conditionals.html">Using Arrays in Conditional Statements</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413323363024">testing, initial, <a class="indexterm" href="using-systemtap.html#testing">Initial Testing</a></dt><dt id="ientry-idm46413322045344">thread_indent()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt></dl></dd><dt id="ientry-idm46413328982224">thread_indent(), sample usage</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt id="ientry-idm46413321838400">tid()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt></dl></dd><dt id="ientry-idm46413318965792">time of I/O </dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt></dl></dd><dt id="ientry-idm46413325334224">time spent in kernel/user space, determining</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt></dl></dd><dt id="ientry-idm46413316448304">timer events</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt id="ientry-idm46413331028944">timer.ms(), sample usage</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="mainsect-profiling.html#countcallssect">Counting Function Calls Made</a></dt></dl></dd><dt id="ientry-idm46413324618528">timer.s(), sample usage</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="timeoutssect.html">Monitoring Polling Applications</a>, <a class="indexterm" href="topsyssect.html">Tracking Most Frequently Used System Calls</a></dt></dl></dd><dt id="ientry-idm46413322805760">timestamp deltas, computing for</dt><dd><dl><dt>reading values from arrays</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413321342624">timestamps, association thereof to process names</dt><dd><dl><dt>assigning associated values</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413316404016">tracepoint, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a>, <a class="indexterm" href="useful-systemtap-scripts.html#dropwatchsect">Monitoring Network Packets Drops in Kernel</a></dt><dt id="ientry-idm46413324939328">tracing call graph</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt id="ientry-idm46413322402768">tracing functions called in network socket code</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html#sockettracesect">Tracing Functions Called in Network Socket Code</a></dt></dl></dd><dt id="ientry-idm46413326787792">tracing incoming/outgoing function calls</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt id="ientry-idm46413321602640">tracking cumulative I/O</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt></dl></dd><dt id="ientry-idm46413331030128">trigger function</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="paracallgraph.html">Call Graph Tracing</a></dt></dl></dd><dt id="ientry-idm46413325053168">type mismatch for identifier</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413324363136">typographical script error</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>U</h3><dl><dt id="ientry-idm46413321843632">uid()</dt><dd><dl><dt>functions, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt></dl></dd><dt id="ientry-idm46413323341856">uname -m, <a class="indexterm" href="cross-compiling.html">Generating Instrumentation for Other Computers</a></dt><dt id="ientry-idm46413327002400">uname -r, <a class="indexterm" href="using-systemtap.html#install-kinfo">Installing Required Kernel Information Packages Manually</a></dt><dt id="ientry-idm46413327459232">understainding SystemTap errors</dt><dd><dl><dt>runtime errors/warnings, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dd><dl><dt>aggregate element not found, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>aggregation overflow, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>copy fault, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>division by 0, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>MAXACTION exceeded, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>MAXNESTING exceeded, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>number of errors: N, skipped probes: M, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt><dt>pointer dereference fault, <a class="indexterm" href="runtimeerror.html">Runtime Errors and Warnings</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413326203760">Understanding How SystemTap Works, <a class="indexterm" href="understanding-how-systemtap-works.html">Understanding How SystemTap Works</a></dt><dd><dl><dt>architecture, <a class="indexterm" href="understanding-how-systemtap-works.html#understanding-architecture-tools">Architecture</a></dt><dt>event types, <a class="indexterm" href="understanding-how-systemtap-works.html">Understanding How SystemTap Works</a></dt><dt>events and handlers, <a class="indexterm" href="understanding-how-systemtap-works.html">Understanding How SystemTap Works</a></dt><dt>SystemTap sessions, <a class="indexterm" href="understanding-how-systemtap-works.html#understanding-architecture-tools">Architecture</a></dt></dl></dd><dt id="ientry-idm46413328696384">understanding SystemTap errors</dt><dd><dl><dt>parse/semantics error, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dd><dl><dt>embedded code in unprivileged script, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>expected symbol/array index expression, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>grammatical/typographical script error, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>guru mode, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>invalid values to variables/arrays, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>libdwfl failure, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>no match for probe point, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>non-global arrays, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>probe mismatch, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>type mismatch for identifier, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved function call, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved target-symbol expression, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>unresolved type for identifier, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt><dt>variable modified during 'foreach', <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413314819136">unique keys</dt><dd><dl><dt>introduction</dt><dd><dl><dt>arrays, <a class="indexterm" href="associativearrays.html">Associative Arrays</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413322534416">unprivileged script, embedded code in</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413318843968">unresolved function call</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413316795456">unresolved target-symbol expression</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413328549968">unresolved type for identifier</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413321200720">unsafe embedded code in unprivileged script</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413324704992">Usage</dt><dd><dl><dt>options, stap, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt>running SystemTap scripts, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt>standard input, running scripts from, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt>stap, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt>stapdev, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt>staprun, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt><dt>stapusr, <a class="indexterm" href="using-usage.html">Running SystemTap Scripts</a></dt></dl></dd><dt id="ientry-idm46413328491296">useful examples of SystemTap scripts, <a class="indexterm" href="useful-systemtap-scripts.html">Useful SystemTap Scripts</a></dt><dt id="ientry-idm46413318398528">user and kernel space, determining time spent in</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="threadtimessect.html">Determining Time Spent in Kernel and User Space</a></dt></dl></dd><dt id="ientry-idm46413321806352">using arrays in simple computations</dt><dd><dl><dt>reading values from arrays</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-readvalues.html">Reading Values From Arrays</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413318351392">Using SystemTap, <a class="indexterm" href="using-systemtap.html">Using SystemTap</a></dt><dt id="ientry-idm46413321249104">usrdev2kerndev()</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>V</h3><dl><dt id="ientry-idm46413322847920">values, assignment of</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayoperators.html#arrayops-assignvalue">Assigning an Associated Value</a></dt></dl></dd><dt id="ientry-idm46413323000528">variable modified during 'foreach'</dt><dd><dl><dt>parse/semantics error</dt><dd><dl><dt>understanding SystemTap errors, <a class="indexterm" href="errors.html#parsetype">Parse and Semantic Errors</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413330796688">variable notations</dt><dd><dl><dt>SystemTap handler constructs</dt><dd><dl><dt>handlers, <a class="indexterm" href="commandlineargssect.html">Command-Line Arguments</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413324924704">variables</dt><dd><dl><dt>SystemTap handler constructs</dt><dd><dl><dt>handlers, <a class="indexterm" href="scriptconstructions.html#variablesconstructs">Variables</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413323900656">variables (local)</dt><dd><dl><dt>name, <a class="indexterm" href="systemtapscript-handler.html">SystemTap Handler/Body</a></dt><dt>sample usage</dt><dd><dl><dt>$count, <a class="indexterm" href="iotimesect.html">Tracking I/O Time For Each File Read or Write</a></dt><dt>$return, <a class="indexterm" href="mainsect-disk.html#disktop">Summarizing Disk Read/Write Traffic</a>, <a class="indexterm" href="traceiosect.html">Track Cumulative IO</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413329292768">VFS reads, tallying of</dt><dd><dl><dt>incrementing associated values</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-increment.html">Incrementing Associated Values</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413316375120">vfs.file_operation</dt><dd><dl><dt>Events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt></dl></dd><dt id="ientry-idm46413328182192">virtual file system reads (cumulative), tallying</dt><dd><dl><dt>processing multiple elements in an array</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-foreach.html">Processing Multiple Elements in an Array</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413326854320">virtual file system reads (non-cumulative), tallying</dt><dd><dl><dt>clearing arrays/array elements</dt><dd><dl><dt>array operations, <a class="indexterm" href="arrayops-deleting.html">Clearing/Deleting Arrays and Array Elements</a></dt></dl></dd></dl></dd></dl></div><div class="indexdiv"><h3>W</h3><dl><dt id="ientry-idm46413323028528">while loops</dt><dd><dl><dt>conditional statements</dt><dd><dl><dt>handlers, <a class="indexterm" href="handlerconditionalstatements.html">Conditional Statements</a></dt></dl></dd></dl></dd><dt id="ientry-idm46413316729344">whole device number (usage as a command-line argument)</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="traceio2sect.html">I/O Monitoring (By Device)</a></dt></dl></dd><dt id="ientry-idm46413316394128">wildcards in events, <a class="indexterm" href="scripts.html#systemtapscript-events">Event</a></dt><dt id="ientry-idm46413329298208">writes/reads to a file, monitoring</dt><dd><dl><dt>examples of SystemTap scripts, <a class="indexterm" href="inodewatchsect.html">Monitoring Reads and Writes to a File</a></dt></dl></dd></dl></div></div></div><ul class="docnav"><li class="previous"><a accesskey="p" href="appe-Publican-Revision_History.html"><strong>Prev</strong>Appendix A. Revision History</a></li><li class="up"><a accesskey="u" href="#"><strong>Up</strong></a></li><li class="home"><a accesskey="h" href="index.html"><strong>Home</strong></a></li></ul></body></html>
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