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charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit Hello, kernel test robot noticed a 2915.8% improvement of stress-ng.get.ops_per_sec on: commit: eaa4abe54eb5de1ee002aa2e4f88fc49156f2fdb ("efivarfs: Cache occupied and available space") https://git.kernel.org/cgit/linux/kernel/git/ardb/linux.git efi-arm-memmap-dtprop 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: get cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20260827/202608270836.4a9957c0-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/get/stress-ng/60s commit: 44e4ec1a80 ("efi: apple-properties: validate setup data header length") eaa4abe54e ("efivarfs: Cache occupied and available space") 44e4ec1a802d2078 eaa4abe54eb5de1ee002aa2e4f8 ---------------- --------------------------- %stddev %change %stddev \ | \ 15418287 +2912.1% 4.644e+08 stress-ng.get.ops 256967 +2915.8% 7749645 stress-ng.get.ops_per_sec 554.00 ± 4% +11739.5% 65591 stress-ng.time.involuntary_context_switches 69114 ± 17% -52.8% 32593 ± 2% stress-ng.time.minor_page_faults 209.30 +12040.1% 25409 stress-ng.time.percent_of_cpu_this_job_got 120.05 +12557.5% 15195 stress-ng.time.system_time 6.51 +1095.1% 77.76 stress-ng.time.user_time 97296 -41.8% 56610 ± 14% stress-ng.time.voluntary_context_switches 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