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![22 Simple Calculation: 5 + 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ int a = 5; int b = 3; add(a, b); } > javac app.java > java app > 8 var add = function (a, b) { console.log(a + b); } var a = 5; var b = 3; add(a, b); > node app.js > 8](https://image.slidesharecdn.com/interconnect2016webapparchitectures-160225001152/75/InterConnect2016-WebApp-Architectures-with-Java-and-Node-js-22-2048.jpg)
![23 Simple Calculation: 5 + 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ int a = 5; int b = 3; add(a, b); } > javac app.java > java app > 8 var add = function (a, b) { console.log(a + b); } var a = 5; var b = 3; add(a, b); > node app.js > 8](https://image.slidesharecdn.com/interconnect2016webapparchitectures-160225001152/75/InterConnect2016-WebApp-Architectures-with-Java-and-Node-js-23-2048.jpg)
![24 Simple Calculation: 5 + 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ int a = 5; int b = 3; add(a, b); } > javac app.java > java app > 8 var add = function (a, b) { console.log(a + b); } var a = 5; var b = 3; add(a, b); > node app.js > 8](https://image.slidesharecdn.com/interconnect2016webapparchitectures-160225001152/75/InterConnect2016-WebApp-Architectures-with-Java-and-Node-js-24-2048.jpg)
![25 Simple Calculation: 5 + 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ int a = 5; int b = 3; add(a, b); } > javac app.java > java app > 8 var add = function (a, b) { console.log(a + b); } var a = 5; var b = 3; add(a, b); > node app.js > 8](https://image.slidesharecdn.com/interconnect2016webapparchitectures-160225001152/75/InterConnect2016-WebApp-Architectures-with-Java-and-Node-js-25-2048.jpg)
![26 Simple Calculation: 5 + 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ int a = 5; int b = 3; add(a, b); } > javac app.java > java app > 8 var add = function (a, b) { console.log(a + b); } var a = 5; var b = 3; add(a, b); > node app.js > 8](https://image.slidesharecdn.com/interconnect2016webapparchitectures-160225001152/75/InterConnect2016-WebApp-Architectures-with-Java-and-Node-js-26-2048.jpg)
![27 Simple Calculation: 5 + 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ String a = new String(“5”); int b = 3; add(a, b); } > javac app.java > java app > 8 var add = function (a, b) { console.log(a + b); } var a = ‘5’; var b = 3; add(a, b); > node app.js > 8](https://image.slidesharecdn.com/interconnect2016webapparchitectures-160225001152/75/InterConnect2016-WebApp-Architectures-with-Java-and-Node-js-27-2048.jpg)
![28 Simple Calculation: 5 + 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ String a = new String(“5”); int b = 3; add(a, b); } > javac app.java > java app > 8 var add = function (a, b) { console.log(a + b); } var a = ‘5’; var b = 3; add(a, b); > node app.js > 8](https://image.slidesharecdn.com/interconnect2016webapparchitectures-160225001152/75/InterConnect2016-WebApp-Architectures-with-Java-and-Node-js-28-2048.jpg)
![29 Simple Calculation: 5 + 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ String a = new String(“5”); int b = 3; add(a, b); } > javac app.java Error: incompatible types: String cannot be converted to int add(a, b); ^ var add = function (a, b) { console.log(a + b); } var a = ‘5’; var b = 3; add(a, b); > node app.js > 8](https://image.slidesharecdn.com/interconnect2016webapparchitectures-160225001152/75/InterConnect2016-WebApp-Architectures-with-Java-and-Node-js-29-2048.jpg)
![30 Simple Calculation: 5 + 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ String a = new String(“5”); int b = 3; add(a, b); } > javac app.java Error: incompatible types: String cannot be converted to int add(a, b); ^ var add = function (a, b) { console.log(a + b); } var a = ‘5’; var b = 3; add(a, b); > node app.js > 53](https://image.slidesharecdn.com/interconnect2016webapparchitectures-160225001152/75/InterConnect2016-WebApp-Architectures-with-Java-and-Node-js-30-2048.jpg)
Uploaded byChris Bailey
InterConnect2016: WebApp Architectures with Java and Node.js
The document outlines guidelines for IBM speakers regarding presentations, including mandatory slides for forward-looking content, disclaimers, and submission instructions. It also compares web app architectures using Java and Node.js, highlighting advantages such as developer productivity and scalability differences. Additionally, it emphasizes the importance of adhering to legal and copyright considerations when using visual content.
InterConnect2016: WebApp Architectures with Java and Node.js
- 1. Emerging Web AppArchitectures Using Java and Node.js
- 2. IMPORTANT info regardingIBM speaker guidelines and disclaimers • If your presentation has forward looking content, it is mandatory that you put the forward disclaimer as slide 2 in your presentation (this is the “Please Note” slide, third slide down in this template). • All presentations, whether they have future content or not, must include the mandatory “Notices and Disclaimers” – slides 8 and 9 in the template. Insert these slides just before the “Thank You” slide in your deck. • Please refer to the FAQ document in the Speaker Kit regarding additional legal guidance for use of photos, logos, customer references and analyst information. • It is recommended to have your material reviewed by Legal if you have any concerns regarding your content. • Please submit your final presentation, using the instructions in the online Speaker Kit, by February 5th, 2016. Post your final file in native format using the following naming convention: session code.ppt (For example, 1576.ppt) • Disclosures regarding forward guidance is embedded in the tool and also available through this link: • https://w3-03.ibm.com/finance/finsubp.nsf/WebPages/N01FF08SoftwareRevenueRecognitionGuidelinesRelatedtoProductDisclosures • Please remove these instructions before finalizing your presentation. 2
- 3. Please Note: 3 • IBM’sstatements regarding its plans, directions, and intent are subject to change or withdrawal without notice at IBM’s sole discretion. • Information regarding potential future products is intended to outline our general product direction and it should not be relied on in making a purchasing decision. • The information mentioned regarding potential future products is not a commitment, promise, or legal obligation to deliver any material, code or functionality. Information about potential future products may not be incorporated into any contract. • The development, release, and timing of any future features or functionality described for our products remains at our sole discretion. • Performance is based on measurements and projections using standard IBM benchmarks in a controlled environment. The actual throughput or performance that any user will experience will vary depending upon many factors, including considerations such as the amount of multiprogramming in the user’s job stream, the I/O configuration, the storage configuration, and the workload processed. Therefore, no assurance can be given that an individual user will achieve results similar to those stated here.
- 4. © 2015 IBMCorporation4 1 STSM, IBM Runtime Development @Chris__Bailey @seabaylea
- 5.
- 6.
- 7. 7 API Package Support ●Node.js growth: ● 371 packages/day ● Java growth: ● 92 packages/day
- 8.
- 9.
- 10. 10 var cluster =require('cluster'); var cpus = require('os').cpus().length; var http = require('http'); if (cluster.isMaster) { for (var i = 0; i < cpus; i++) { cluster.fork(); } cluster.on('death', function(worker) { console.log("Worker" + worker.pid + "died"); }); } else { http.createServer(function(request, response) { response.writeHead(200, {"Content-Type": "text/plain"}); response.write("Hello World!n"); response.end(); }).listen(8080); } Writing a HTTP Server
- 11. 11 var cluster =require('cluster'); var cpus = require('os').cpus().length; var http = require('http'); if (cluster.isMaster) { for (var i = 0; i < cpus; i++) { cluster.fork(); } cluster.on('death', function(worker) { console.log("Worker" + worker.pid + "died"); }); } else { http.createServer(function(request, response) { response.writeHead(200, {"Content-Type": "text/plain"}); response.write("Hello World!n"); response.end(); }).listen(8080); } And Clustering It….
- 12. 12 ● One thread(or process) per connection - Each thread waits on a response - Scalability determined by the number of threads ● Each thread: - consumes memory - is relatively idle ● Concurrency determined by number of depot workers Typical Java Approach to Scalable I/O
- 13. 13 ● One threadmultiplexes for multiple requests - No waiting for a response - Handles return from I/O when notified ● Scalability determined by: - CPU usage - “Back end” responsiveness ● Concurrency determined by how fast the food server can work Node.js approach to Scalable I/O
- 14. 14 Node.js event basedprogramming var http = require('http'); var server = http.createServer(); server.listen(8080); server.on('request', function(request, response) { response.writeHead(200, {"Content-Type": "text/plain"}); response.write("Hello World!n"); response.end(); }); server.on('connection', function(socket) {}); server.on('close', function() {}); server.on('connect', function(socket) {}); server.on('upgrade', function(request, socket, head) {}); server.on('clientError', function(exception, socket) {});
- 15. 15 0 500 1000 1500 2000 2500 3000 regex-dna n-body binary-trees spectral-norm fannkuch-redux reverse-com plim ent k-nucleo>de fasta Volume of Code Node.js Java ● Average 45%less code required for Node.js implementation Code required to implement benchmarks
- 16.
- 17. 17 ● The webhas moved from Web Sites to Web Applications From Web Sites to Web Apps
- 18. ● JavaScript isubiquitous in the browser - Supported in every browser - Integration with HTML and CSS ● JavaScript is not affected by negative publicity.... 18 Unless it is absolutely necessary to run Java in web browsers, disable it as described below, even after updating to 7u11. This will help mitigate other Java vulnerabilities that may be discovered in the future. This and previous Java vulnerabilities have been widely targeted by attackers, and new Java vulnerabilities are likely to be discovered. To defend against this and future Java vulnerabilities, consider disabling Java in web browsers… Programming in the Browser
- 19. 19 FullStack JavaScript Development ●Reuse of programming skills and teams ● Reuse of skills for both client and server side code ● Reuse of “isomorphic” code components ● Reuse of code for both client and server ● Write One Run Anywhere ● Faster user experience performance ● Use of server side rendering
- 20. 20 Server Side Rendering ●Pre-Initialisation of the client UI on the server: ● Improves time for the first elements appearing in the UI ● Has additional benefits: ● Search Engine Indexing ● Easier code maintenance
- 21.
- 22. 22 Simple Calculation: 5+ 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ int a = 5; int b = 3; add(a, b); } > javac app.java > java app > 8 var add = function (a, b) { console.log(a + b); } var a = 5; var b = 3; add(a, b); > node app.js > 8
- 23. 23 Simple Calculation: 5+ 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ int a = 5; int b = 3; add(a, b); } > javac app.java > java app > 8 var add = function (a, b) { console.log(a + b); } var a = 5; var b = 3; add(a, b); > node app.js > 8
- 24. 24 Simple Calculation: 5+ 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ int a = 5; int b = 3; add(a, b); } > javac app.java > java app > 8 var add = function (a, b) { console.log(a + b); } var a = 5; var b = 3; add(a, b); > node app.js > 8
- 25. 25 Simple Calculation: 5+ 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ int a = 5; int b = 3; add(a, b); } > javac app.java > java app > 8 var add = function (a, b) { console.log(a + b); } var a = 5; var b = 3; add(a, b); > node app.js > 8
- 26. 26 Simple Calculation: 5+ 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ int a = 5; int b = 3; add(a, b); } > javac app.java > java app > 8 var add = function (a, b) { console.log(a + b); } var a = 5; var b = 3; add(a, b); > node app.js > 8
- 27. 27 Simple Calculation: 5+ 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ String a = new String(“5”); int b = 3; add(a, b); } > javac app.java > java app > 8 var add = function (a, b) { console.log(a + b); } var a = ‘5’; var b = 3; add(a, b); > node app.js > 8
- 28. 28 Simple Calculation: 5+ 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ String a = new String(“5”); int b = 3; add(a, b); } > javac app.java > java app > 8 var add = function (a, b) { console.log(a + b); } var a = ‘5’; var b = 3; add(a, b); > node app.js > 8
- 29. 29 Simple Calculation: 5+ 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ String a = new String(“5”); int b = 3; add(a, b); } > javac app.java Error: incompatible types: String cannot be converted to int add(a, b); ^ var add = function (a, b) { console.log(a + b); } var a = ‘5’; var b = 3; add(a, b); > node app.js > 8
- 30. 30 Simple Calculation: 5+ 3 private static void add (int a, int b){ System.out.println(a + b); } public static void main(String[] args){ String a = new String(“5”); int b = 3; add(a, b); } > javac app.java Error: incompatible types: String cannot be converted to int add(a, b); ^ var add = function (a, b) { console.log(a + b); } var a = ‘5’; var b = 3; add(a, b); > node app.js > 53
- 31. 31 JavaScript Calculations > 5+ 3 8 > '5' + 3 '53' > '5' – 3 2 // Weak typing, implicit conversion > '5' – '4' 1 // String minus String = Integer?? > '5' + + '4' 54 // Multiple +'s are ok > 'Hello' + 'World' 'HelloWorld' // Ok, that's expected > 'Hello' + + 'World' 'HelloNaN' // ...but that isn't
- 32. 32 JavaScript Calculations > 5+ 3 8 > '5' + 3 '53' > '5' – 3 2 // Weak typing, implicit conversion > '5' – '4' 1 // String minus String = Integer?? > '5' + + '4' 54 // Multiple +'s are ok > 'Hello' + 'World' 'HelloWorld' // Ok, that's expected > 'Hello' + + 'World' 'HelloNaN' // ...but that isn't
- 33. 33 JavaScript Calculations > 5+ 3 8 > '5' + 3 '53' > '5' – 3 2 // String is converted to a number for subtraction > '5' – '4' 1 // String minus String = Integer?? > '5' + + '4' 54 // Multiple +'s are ok > 'Hello' + 'World' 'HelloWorld' // Ok, that's expected > 'Hello' + + 'World' 'HelloNaN' // ...but that isn't
- 34. 34 JavaScript Calculations > 5+ 3 8 > '5' + 3 '53' > '5' – 3 2 // String is converted to a number for subtraction > '5' – '4' 1 // String minus String = Integer?? > '5' + + '4' 54 // Multiple +'s are ok > 'Hello' + 'World' 'HelloWorld' // Ok, that's expected > 'Hello' + + 'World' 'HelloNaN' // ...but that isn't
- 35. 35 JavaScript Calculations > 5+ 3 8 > '5' + 3 '53' > '5' – 3 2 // String is converted to a number for subtraction > '5' – '4' 1 // Both Strings converted to number for subtraction > '5' + + '4' 54 // Multiple +'s are ok > 'Hello' + 'World' 'HelloWorld' // Ok, that's expected > 'Hello' + + 'World' 'HelloNaN' // ...but that isn't
- 36. 36 JavaScript Calculations > 5+ 3 8 > '5' + 3 '53' > '5' – 3 2 // String is converted to a number for subtraction > '5' – '4' 1 // Both Strings converted to number for subtraction > '5' + + '4' 54 // Multiple +'s are ok > 'Hello' + 'World' 'HelloWorld' // Ok, that's expected > 'Hello' + + 'World' 'HelloNaN' // ...but that isn't
- 37. 37 JavaScript Calculations > 5+ 3 8 > '5' + 3 '53' > '5' – 3 2 // String is converted to a number for subtraction > '5' – '4' 1 // Both Strings converted to number for subtraction > '5' + + '4' 54 // Multiple +'s are ok > 'Hello' + 'World' 'HelloWorld' // Ok, that's expected > 'Hello' + + 'World' 'HelloNaN' // ...but that isn't
- 38. 38 JavaScript Calculations > 5+ 3 8 > '5' + 3 '53' > '5' – 3 2 // String is converted to a number for subtraction > '5' – '4' 1 // Both Strings converted to number for subtraction > '5' + + '4' 54 // Multiple +'s are ok > 'Hello' + 'World' 'HelloWorld' // Ok, that's expected > 'Hello' + + 'World' 'HelloNaN' // ...but that isn't
- 39. 39 JavaScript Calculations > 5+ 3 8 > '5' + 3 '53' > '5' – 3 2 // String is converted to a number for subtraction > '5' – '4' 1 // Both Strings converted to number for subtraction > '5' + + '4' 54 // Multiple +'s are ok > 'Hello' + 'World' 'HelloWorld' // Ok, that's expected > 'Hello' + + 'World' 'HelloNaN' // ...but that isn't
- 40. 40 JavaScript Calculations > 5+ 3 8 > '5' + 3 '53' > '5' – 3 2 // String is converted to a number for subtraction > '5' – '4' 1 // Both Strings converted to number for subtraction > '5' + + '4' 54 // Multiple +'s are ok > 'Hello' + 'World' 'HelloWorld' // Ok, that's expected > 'Hello' + + 'World' 'HelloNaN' // ...but that isn't
- 41. 41 JavaScript Calculations > 5+ 3 8 > '5' + 3 '53' > '5' – 3 2 // String is converted to a number for subtraction > '5' – '4' 1 // Both Strings converted to number for subtraction > '5' + + '4' 54 // Multiple +'s are ok > 'Hello' + 'World' 'HelloWorld' // Ok, that's expected > 'Hello' + + 'World' 'HelloNaN' // Multiple plus must cause String to number conversion
- 42. 42 JavaScript Calculations > '5'+ - '5' '5-2' // I can just about see that works > var x = 3 undefined > '5' – x + x 5 // Ok, that makes sense > var x = 3 undefined > '5' + x - x 50 // What???
- 43. 43 JavaScript Calculations > '5'+ - '5' '5-2' // I can just about see that works > var x = 3 > '5' – x + x 5 // Ok, that makes sense > var x = 3 undefined > '5' + x - x 50 // What???
- 44. 44 JavaScript Calculations > '5'+ - '5' '5-2' // I can just about see that works > var x = 3 > '5' – x + x 5 // Ok, that makes sense > var x = 3 > '5' + x - x 50 // What???
- 45.
- 46. ● JSON serializationof a newly instantiated object ● Maps - Key of message - Value of Hello, World! ● Example response: 46 Results from TechEmpower.com Round 9 tests (2014-05-01) JSON Serialisation
- 47. ● JSON serializationof a newly instantiated object ● Maps - Key of message - Value of Hello, World! ● Example response: 47 Results from TechEmpower.com Round 9 tests (2014-05-01) JSON Serialisation Java JavaScript
- 48. 48 -100 -80 -60 -40 -20 0 20 40 -75 Node.js Performance (Compared toJava) JSON Serialization %ageofJavaPerformance Node.js Web App Performance vs. Java
- 49. ● Fetches singlerow from simple database table ● Row serialized as JSON ● Example response: 49 Results from TechEmpower.com Round 9 tests (2014-05-01) Single Query
- 50. ● Fetches singlerow from simple database table ● Row serialized as JSON ● Example response: 50 Results from TechEmpower.com Round 9 tests (2014-05-01) Single Query Java JavaScript
- 51. 51 -100 -80 -60 -40 -20 0 20 40 -75 Node.js Performance (Compared toJava) JSON Serialization %ageofJavaPerformance Node.js Web App Performance vs. Java
- 52. -100 -80 -60 -40 -20 0 20 40 -60.5 Node.js Performance (Compared toJava) JSON Serialization Single Query %ageofJavaPerformance 52 Node.js Web App Performance vs. Java
- 53. ● Fetches multiplerows from a simple database table ● Rows serialized as JSON ● Example response: 53 Results from TechEmpower.com Round 9 tests (2014-05-01) Multiple Queries
- 54. ● Fetches multiplerows from a simple database table ● Rows serialized as JSON ● Example response: 54 Results from TechEmpower.com Round 9 tests (2014-05-01) Multiple Queries Java JavaScript
- 55. -100 -80 -60 -40 -20 0 20 40 -60.5 Node.js Performance (Compared toJava) JSON Serialization Single Query %ageofJavaPerformance 55 Node.js Web App Performance vs. Java
- 56. 56 Node.js Web AppPerformance vs. Java -100 -80 -60 -40 -20 0 20 40 -18 Node.js Performance (Compared to Java) JSON Serialization Single Query Multiple Queries %ageofJavaPerformance
- 57. ● Fetches multiplerows from a table ● Converts rows to objects and modifies one attribute of each object ● Updates each associated row and serializes as JSON ● Example Response: 57 Results from TechEmpower.com Round 9 tests (2014-05-01) Data Updates
- 58. ● Fetches multiplerows from a table ● Converts rows to objects and modifies one attribute of each object ● Updates each associated row and serializes as JSON ● Example Response: 58 Results from TechEmpower.com Round 9 tests (2014-05-01) Data Updates Java JavaScript
- 59. 59 Node.js Web AppPerformance vs. Java -100 -80 -60 -40 -20 0 20 40 -18 Node.js Performance (Compared to Java) JSON Serialization Single Query Multiple Queries %ageofJavaPerformance
- 60. 60 Node.js Web AppPerformance vs. Java -100 -80 -60 -40 -20 0 20 40 28 Node.js Performance (Compared to Java) JSON Serialization Single Query Multiple Queries Data Updates %ageofJavaPerformance
- 61. 61 Node.js Web AppPerformance vs. Java -100 -80 -60 -40 -20 0 20 40 28 Node.js Performance (Compared to Java) JSON Serialization Single Query Multiple Queries Data Updates %ageofJavaPerformance More Computation More I/O
- 62. 6217*IBM created opensourced benchmark, being considered for endorsement by Node Foundation Node.js Web App Performance • Results from Acme Air*: − Flight booking benchmark that includes large I/O component − https://github.com/acmeair/acmeair
- 63. 63 ● JIT Compilersthrive on certainty ● Allows functions to be implemented as efficiently as possible ● Dynamic typing forces the JIT to do more work: ● Variables could be function, or data ● Variables must be tested to determine how to handle them ● Variable types can change over time Variable Typing and Just-In-Time (JIT) Compilation
- 64. 64 Just-In-Time (JIT) Compilation:The ‘+’ operator int add(int a, int b) { return (a + b); }
- 65. 65 Just-In-Time (JIT) Compilation:The ‘+’ operator int add(int a, int b) { return (a + b); } Add Instruction
- 66. 66 Just-In-Time (JIT) Compilation:The ‘+’ operator int add(int a, int b) { return (a + b); } Add Instruction Return Result
- 67. 67 Just-In-Time (JIT) Compilation:The ‘+’ operator var add = function (a, b) { return (a + b); }
- 68. 68 Just-In-Time (JIT) Compilation:The ‘+’ operator var add = function (a, b) { return (a + b); } Check type of A
- 69. 69 Just-In-Time (JIT) Compilation:The ‘+’ operator var add = function (a, b) { return (a + b); } Check type of A String Number
- 70. 70 Just-In-Time (JIT) Compilation:The ‘+’ operator var add = function (a, b) { return (a + b); } Check type of A String NumberString Check type of B Number
- 71. 71 Just-In-Time (JIT) Compilation:The ‘+’ operator var add = function (a, b) { return (a + b); } Check type of A String NumberString Check type of B Number Concatenate
- 72. 72 Just-In-Time (JIT) Compilation:The ‘+’ operator var add = function (a, b) { return (a + b); } Check type of A String NumberString Check type of B Number Concatenate Concatenate
- 73. 73 Just-In-Time (JIT) Compilation:The ‘+’ operator var add = function (a, b) { return (a + b); } Check type of A String NumberString Check type of B Number Concatenate Concatenate String Check type of B Number
- 74. 74 Just-In-Time (JIT) Compilation:The ‘+’ operator var add = function (a, b) { return (a + b); } Check type of A String NumberString Check type of B Number Concatenate Concatenate String Check type of B Number Concatenate
- 75. 75 Just-In-Time (JIT) Compilation:The ‘+’ operator var add = function (a, b) { return (a + b); } Check type of A String NumberString Check type of B Number Concatenate Concatenate String Check type of B Number Concatenate Floating Point or Normal NormalFloat
- 76. 76 Just-In-Time (JIT) Compilation:The ‘+’ operator var add = function (a, b) { return (a + b); } Check type of A String NumberString Check type of B Number Concatenate Concatenate String Check type of B Number Concatenate Floating Point or Normal NormalFloat Add Instruction
- 77. 77 Just-In-Time (JIT) Compilation:The ‘+’ operator var add = function (a, b) { return (a + b); } Check type of A String NumberString Check type of B Number Concatenate Concatenate String Check type of B Number Concatenate Floating Point or Normal NormalFloat Add InstructionFloat Calculation
- 78. 78 Dynamically vs. StaticallyTyped Languages -70 -60 -50 -40 -30 -20 -10 0 Dynamic vs Statically Typed Language Performance JSON Single Multi Updates Bestdynamiccomparedtobeststaticasbaseline ● Best statically typed language much better than best dynamic
- 79.
- 80. 80 “Do one thing,and do it well” ● Services are small and targeted to their task ● Services are organized around capabilities ● Services are self contained, storing their own data Microservices Paradigm
- 81. 81 Choosing the RightLanguage for the Service
- 82. 82 Choosing the RightLanguage for the Service 0 500 1000 1500 2000 2500 3000 regex-dna n-body binary-trees spectral-norm fannkuch-redux reverse-com plim ent k-nucleo>de fasta Volume of Code Node.js Java
- 83. 83 Node.js 0 - 4x + 1/3x Node.jsPerformanceRelativetoJava CPUBound I/O Bound * based on TechEmpower benchmark results Application Performance (higher is better) Choosing the Right Language for the Service 0 500 1000 1500 2000 2500 3000 regex-dna n-body binary-trees spectral-norm fannkuch-redux reverse-com plim ent k-nucleo>de fasta Volume of Code Node.js Java
- 84. 84 Node.js 0 - 4x + 1/3x Node.jsPerformanceRelativetoJava CPUBound I/O Bound * based on TechEmpower benchmark results Application Performance (higher is better) Choosing the Right Language for the Service 0 500 1000 1500 2000 2500 3000 regex-dna n-body binary-trees spectral-norm fannkuch-redux reverse-com plim ent k-nucleo>de fasta Volume of Code Node.js Java Error: incompatible types ClassCastException
- 85. 85 ● Higher performancefor I/O ● Easier async programming ● Fullstack/isomorphic development Choosing the Right Language for the Service
- 86. 86 Choosing the RightLanguage for the Service ● Higher processing performance ● Type safety for calculations ● Rich processing frameworks
- 87. 87 ● Highly performant,scalable rich web applications ● Highly performant, reliable transaction processing ● Self-contained micro-service components Choosing the Right Language for the Service +
- 88.
- 89.
- 90.
- 91.
- 92.
- 93.
- 94. 94 Operations and Management AdminAnalytics LoadBalancer HTTP Rich Web Applications
- 95. 95 Operations and Management AdminAnalytics LoadBalancer HTTP Rich Web Applications
- 96. 96 Operations and Management AdminAnalytics LoadBalancer HTTP Rich Web Applications
- 97. 97 Operations and Management AdminAnalytics LoadBalancer HTTP Rich Web Applications LoadBalancer
- 98. 98 MicroServices and APIEconomy
- 99. 99 Operations and Management AdminAnalytics LoadBalancer HTTP MicroServices and API Economy LoadBalancer
- 100. 100 Operations and Management AdminAnalytics LoadBalancer HTTP MicroServices and API Economy LoadBalancer
- 101. 101 Operations and Management AdminAnalytics LoadBalancer HTTP MicroServices and API Economy LoadBalancer
- 102. 102 Operations and Management AdminAnalytics LoadBalancer HTTP MicroServices and API Economy LoadBalancer
- 103. 103 Operations and Management AdminAnalytics LoadBalancer HTTP MicroServices and API Economy
- 104. 104 Operations and Management AdminAnalytics LoadBalancer HTTP MicroServices and API Economy
- 105. 105 Operations and Management AdminAnalytics LoadBalancer HTTP MicroServices and API Economy Services
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- 107. 107 Operations and Management AdminAnalytics LoadBalancer HTTP MicroServices and API Economy Services
- 108. 108 Operations and Management AdminAnalytics LoadBalancer HTTP MicroServices and API Economy Services
- 109. 109 Operations and Management AdminAnalytics LoadBalancer HTTP MicroServices and API Economy Services Client
- 110. 110 Operations and Management AdminAnalytics LoadBalancer HTTP MicroServices and API Economy Services Client Delivery
- 111. 111 Operations and Management AdminAnalytics LoadBalancer HTTP MicroServices and API Economy Client Delivery Aggregation Services
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