Add park sleep related options and CPU util caculation code #22935
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gacholio reviewed Nov 13, 2025
gacholio reviewed Nov 13, 2025
thallium force-pushed the park2 branch 3 times, most recently from 23c59eb to d4dd69f Compare thallium changed the title Contributor Author
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gacholio reviewed Nov 14, 2025
gacholio reviewed Nov 14, 2025
gacholio reviewed Nov 14, 2025
gacholio reviewed Nov 14, 2025
gacholio reviewed Nov 14, 2025
runtime/vm/threadhelp.cpp Outdated
| #endif /* defined(J9VM_OPT_CRIU_SUPPORT) */ | ||
| #if defined(OMR_THR_YIELD_ALG) | ||
| static UDATA parkPolicy = **(UDATA **)omrthread_global((char *)"parkPolicy"); | ||
| if (2 == parkPolicy) { |
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What is 2? This needs to be a constant with a meaningful name.
thallium force-pushed the park2 branch 2 times, most recently from f1535ae to 16d53e3 Compare 
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| jenkins test sanity.functional xlinux jdk17 |
babsingh reviewed Nov 14, 2025
Enable sleep in park on X86 and Power. Default sleep configuration is set based on experiments done using restCrud on Quarkus with wrk as the load generator. With the current default configuration, we observed: - ~20% throughput improvement on RHEL9 (Intel Skylake) - ~8% improvement on RHEL10 (Intel Raptor Lake) - ~11% improvement on pLinux Depends on eclipse-omr/omr#8039 Signed-off-by: Gengchen Tuo <gengchen.tuo@ibm.com>
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Depends on eclipse-omr/omr#8039