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a="1806851" X-IronPort-AV: E=Sophos;i="6.27,181,1787036400"; d="scan'208";a="1806851" Received: from fmviesa013.fm.intel.com ([10.60.135.153]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Oct 2026 03:50:12 -0700 X-CSE-ConnectionGUID: CrPWIebURQa0uyex+Qyzjg== X-CSE-MsgGUID: x8zZB4P/QK2/pjVnw9pBNQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,181,1787036400"; d="scan'208";a="6359406" 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 03:50:10 -0700 Date: Tue, 27 Oct 2026 18:50:06 +0800 From: kernel test robot To: Shubhang Kaushik Cc: oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org, Peter Zijlstra , Zhan Xusheng , sched-ext@lists.linux.dev, aubrey.li@linux.intel.com, yu.c.chen@intel.com, yi1.lai@intel.com Subject: [linus:master] [sched] c72945693b: stress-ng.rawudp.packets_32_bytes_received_per_sec 34.2% improvement Message-ID: <202610271134.d6bf1e10-lkp@intel.com> X-Mailing-List: sched-ext@lists.linux.dev 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 34.2% improvement of stress-ng.rawudp.packets_32_bytes_received_per_sec on: commit: c72945693b90423f1b46ac2dbc8749c2b7804fc8 ("sched: Restart fair hrtick after same-task repicks") 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: 192 threads 2 sockets Intel(R) Xeon(R) 6740E CPU @ 2.4GHz (Sierra Forest) with 256G memory parameters: nr_threads: 100% testtime: 60s test: rawudp cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20261027/202610271134.d6bf1e10-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-srf-2sp3/rawudp/stress-ng/60s commit: a9b3c75705 ("sched/headers: Replace __ASSEMBLY__ with __ASSEMBLER__ in the header") c72945693b ("sched: Restart fair hrtick after same-task repicks") a9b3c7570564de40 c72945693b90423f1b46ac2dbc8 ---------------- --------------------------- %stddev %change %stddev \ | \ 0.01 +100.0% 0.02 stress-ng.rawudp.MB_recv'd_per_sec 4559098 +34.1% 6112029 ± 3% stress-ng.rawudp.ops 76041 +34.0% 101916 ± 3% stress-ng.rawudp.ops_per_sec 395.33 +34.2% 530.63 ± 3% stress-ng.rawudp.packets_32_bytes_received_per_sec 2611008 ± 2% +14.9% 2999104 ± 5% stress-ng.time.involuntary_context_switches 47.70 ± 7% +46.7% 69.96 ± 8% stress-ng.time.user_time 20919233 ± 4% +41.7% 29638128 ± 2% 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