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a="1870198" X-IronPort-AV: E=Sophos;i="6.27,182,1787036400"; d="scan'208";a="1870198" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Oct 2026 18:11:54 -0700 X-CSE-ConnectionGUID: Il5r4mD2TAqZL8hUeXkOWQ== X-CSE-MsgGUID: tqfZYdDyQzi7dyaNWBs2uQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,182,1787036400"; d="scan'208";a="4805966" Received: from ly-workstation.sh.intel.com (HELO ly-workstation) ([10.239.182.64]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Oct 2026 18:11:51 -0700 Date: Wed, 28 Oct 2026 09:11:48 +0800 From: kernel test robot To: Vincent Guittot Cc: oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org, Peter Zijlstra , aubrey.li@linux.intel.com, yu.c.chen@intel.com, yi1.lai@intel.com Subject: [linus:master] [sched] 333238da9a: stress-ng.vm-rw.ops_per_sec 36.4% improvement Message-ID: <202610280223.6ff1abde-lkp@intel.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit Hello, kernel test robot noticed a 36.4% improvement of stress-ng.vm-rw.ops_per_sec on: commit: 333238da9a193ffc58792995f3e951e4cb87bfd2 ("sched: Update time before requeueing delayed entities") 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: vm-rw cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20261028/202610280223.6ff1abde-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-2sp3/vm-rw/stress-ng/60s commit: v7.2-rc7 333238da9a ("sched: Update time before requeueing delayed entities") v7.2-rc7 333238da9a193ffc58792995f3e ---------------- --------------------------- %stddev %change %stddev \ | \ 5.011e+08 +35.9% 6.808e+08 ± 35% stress-ng.time.voluntary_context_switches 2.519e+08 +36.4% 3.436e+08 ± 36% stress-ng.vm-rw.ops 4200915 +36.4% 5729669 ± 36% stress-ng.vm-rw.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