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charset=us-ascii Content-Disposition: inline Hello, kernel test robot noticed a 12.4% improvement of stress-ng.usersyscall.ops_per_sec on: commit: 82e9343260dfc6dda6349f285d9a5eac3e0738d7 ("nsfs: keep namespace tree fields stable until after RCU grace period") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master testcase: stress-ng config: x86_64-rhel-9.4 compiler: gcc-14 test machine: 224 threads 2 sockets Intel(R) Xeon(R) (Sapphire Rapids) with 128G memory parameters: nr_threads: 100% testtime: 60s test: usersyscall cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20261014/202610140836.4d5baee2-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-spr-2sp2/usersyscall/stress-ng/60s commit: 0ecd56573c ("ext4: Avoid entering writeback paths during fastcommit replay") 82e9343260 ("nsfs: keep namespace tree fields stable until after RCU grace period") 0ecd56573c1f272c 82e9343260dfc6dda6349f285d9 ---------------- --------------------------- %stddev %change %stddev \ | \ 33817 -10.8% 30152 stress-ng.usersyscall.nanosecs_per_syscall 1.908e+08 +12.4% 2.144e+08 stress-ng.usersyscall.ops 3187687 +12.4% 3582876 stress-ng.usersyscall.ops_per_sec 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