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a="2752790" X-IronPort-AV: E=Sophos;i="6.27,197,1787036400"; d="scan'208";a="2752790" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Nov 2026 17:01:43 -0800 X-CSE-ConnectionGUID: ppxUl7HUSne6cIdLerpzTw== X-CSE-MsgGUID: 1NC1sPh/QYuI2UkyAugkfw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,197,1787036400"; d="scan'208";a="7055412" 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; 05 Nov 2026 17:01:41 -0800 Date: Fri, 6 Nov 2026 09:01:38 +0800 From: kernel test robot To: Mateusz Guzik Cc: oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org, Christian Brauner , linux-fsdevel@vger.kernel.org, yi1.lai@intel.com Subject: [linus:master] [fs] 161ce1e692: will-it-scale.per_process_ops 113.3% improvement Message-ID: <202611060127.79124a4f-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 113.3% improvement of will-it-scale.per_process_ops on: commit: 161ce1e692d01ddec0522f24a29535ac59a3afaf ("fs: avoid spurious dentry ref/unref cycle on open") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master testcase: will-it-scale 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_task: 100% mode: process test: open3 cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20261106/202611060127.79124a4f-lkp@intel.com ========================================================================================= compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase: gcc-14/performance/x86_64-rhel-9.4/process/100%/debian-13-x86_64-20250902.cgz/lkp-srf-2sp2/open3/will-it-scale commit: v7.3-rc1 161ce1e692 ("fs: avoid spurious dentry ref/unref cycle on open") v7.3-rc1 161ce1e692d01ddec0522f24a29 ---------------- --------------------------- %stddev %change %stddev \ | \ 582504 ± 4% +113.3% 1242579 ± 18% will-it-scale.192.processes 3033 ± 4% +113.3% 6471 ± 18% will-it-scale.per_process_ops 582504 ± 4% +113.3% 1242579 ± 18% will-it-scale.workload 0.14 ± 3% +0.0 0.18 ± 9% mpstat.cpu.all.usr% 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