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Howlett" , Lorenzo Stoakes , Vlastimil Babka , Zi Yan , linux-mm@kvack.org, yi1.lai@intel.com Subject: [linus:master] [mm] 7625cb5673: stress-ng.mincore.ops_per_sec 28.1% improvement Message-ID: <202610190930.7aeab52b-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: A2EBE180003 X-Stat-Signature: kbheo5juspa5cfnomw18anwqbk51w4c6 X-Rspam-User: X-HE-Tag: 1792375152-850079 X-HE-Meta: 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 CC6Ibjzr bEwy78sHF4yOpLvwJxNgZIuEJnbyz48K8ts5zd2ZrybhqzXdv3wH4hM30DWE/qnW9Iy5dnhnmVGn5saB16VzPz7jYccVug8sGWlTxULNkk2AkIic3SxTHn51QzcaDszsB4tjKtR3wBo5A71lKJeJ1pe2y6EwZbtftM+2eys20nBYeb70A1zajz51s9i76cx6HFf3mzx9VI+5Fz5Rla4FnMyOg2v9GRTKxu/QLjZGnlWtaYF3v3r5Ium8jbM+idKFlm18zIP7Q2m7x6jElMRAVWhuzxpr9P4GaxVK4TlQzEk0AC3qh+mHazs5dgDOFLH8A94fvTkZnoP/jG91oFqfc+taFzqPBybxZDRs65a6SEw63zX5Q/B6XdnbblQ== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, kernel test robot noticed a 28.1% improvement of stress-ng.mincore.ops_per_sec on: commit: 7625cb56733bfd470e9fae69a1b8b78aa8b1d3eb ("mm: mincore: replace __get_free_page() with kmalloc()") 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: 256 threads 4 sockets INTEL(R) XEON(R) PLATINUM 8592+ (Emerald Rapids) with 256G memory parameters: nr_threads: 100% testtime: 60s test: mincore cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20261019/202610190930.7aeab52b-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-emr-2sp1/mincore/stress-ng/60s commit: 006943a9b4 ("mm: mincore: remove special handling for VM_PFNMAP") 7625cb5673 ("mm: mincore: replace __get_free_page() with kmalloc()") 006943a9b437b2d4 7625cb56733bfd470e9fae69a1b ---------------- --------------------------- %stddev %change %stddev \ | \ 547.22 -25.4% 408.24 stress-ng.mincore.nanosecs_per_mincore_call 27632999 +28.1% 35386493 stress-ng.mincore.ops 460725 +28.1% 590032 stress-ng.mincore.ops_per_sec 1729 +7.1% 1852 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