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charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit Hello, kernel test robot noticed a 18.5% improvement of stress-ng.stack.ops_per_sec on: commit: a4d1cdc4356de4325b0a9c6fb09afa6e121407b5 ("workqueue: Add workqueue_cpu_intensive tracepoint") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master testcase: stress-ng config: x86_64-rhel-9.4 compiler: gcc-14 test machine: 256 threads 2 sockets Intel(R) Xeon(R) 6768P CPU @ 2.4GHz (Granite Rapids) with 64G memory parameters: nr_threads: 100% testtime: 60s test: stack cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20260916/202609161514.be6a4fae-lkp@intel.com ========================================================================================= compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime: gcc-14/performance/x86_64-rhel-9.4/100%/debian-13-x86_64-20250902.cgz/lkp-gnr-2sp4/stack/stress-ng/60s commit: ab85b68e63 ("workqueue: rename the pwq slot helpers shared with percpu") a4d1cdc435 ("workqueue: Add workqueue_cpu_intensive tracepoint") ab85b68e630e8a4d a4d1cdc4356de4325b0a9c6fb09 ---------------- --------------------------- %stddev %change %stddev \ | \ 2.09e+08 ± 2% +18.4% 2.475e+08 stress-ng.stack.ops 3493402 ± 2% +18.5% 4138262 stress-ng.stack.ops_per_sec 92.39 ± 3% +17.4% 108.49 stress-ng.time.user_time Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki