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X-CSE-ConnectionGUID: wcQSysUiRnud5TUQqkZUMQ== X-CSE-MsgGUID: WjM6L6yFTk2zPFOu/ee6cg== X-IronPort-AV: E=McAfee;i="6800,10657,11954"; a="2328558" X-IronPort-AV: E=Sophos;i="6.27,191,1787036400"; d="scan'208";a="2328558" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Nov 2026 05:56:59 -0800 X-CSE-ConnectionGUID: OV2TL7GUQu6q37LKLBaBmA== X-CSE-MsgGUID: wZ3pGcFlTqGwtH2rwJfoWg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,191,1787036400"; d="scan'208";a="6252146" 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; 02 Nov 2026 05:56:57 -0800 Date: Mon, 2 Nov 2026 21:56:54 +0800 From: kernel test robot To: Harry Yoo Cc: oe-lkp@lists.linux.dev, lkp@intel.com, linux-mm@kvack.org, yi1.lai@intel.com Subject: [harry:b4/sheaf-size-round-up] [mm/slab] 7d63a6c06a: will-it-scale.per_process_ops 54.0% improvement Message-ID: <202611021441.984cb0bb-lkp@intel.com> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Stat-Signature: 8mk5gp75oxptpq9ocd75f3171xj75usr X-Rspamd-Queue-Id: 23AF0C000A X-Rspam-User: X-Rspamd-Server: rspam12 X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-HE-Tag: 1793627820-653742 X-HE-Meta: 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 1t7ET9KL xAmYyWlWAUCzh4hEPVV8i0sMTa0yDlx+y/PVQtes0lHEJP4lzq8VMaxVmFpUSx+fPUGUmDEbv6Za8sRCMogUz8J0QBabZSTyH+25nGk1CLb2cV2IDgs+uxee+tKY84B+4IEPxK5bI+jDCvByZD7i0Tv9lTqTk5c7XQpHaeOX+/+TkoX6PhTwdJc/UtnOiPXGyUIGmIaR5qrtXIjHjxVkekGnapvSeNwrXKiNWSXrHwTAn+vlJzlHS9yur622y1EbP62aD63gEZDE/b1CFzgXpVtIsrtm2RVtMgwHK1CbgqGAy3S+CQmWbw4KbIkVnuwqFFyLiA75IMoNXIx5cZk3er1WM6/3z4sg93mUtc1FRbipCnpEvdQXBiqKkvSANfDIv/eY0KY+1EctxlSGdYlcVa+ENg3jIRkbpcx3P Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Hello, kernel test robot noticed a 54.0% improvement of will-it-scale.per_process_ops on: commit: 7d63a6c06a85030dc4344dc0884883b115faa64a ("mm/slab: round up sheaf size to kmalloc size for explicit sheaf_capacity") https://git.kernel.org/cgit/linux/kernel/git/harry/linux.git b4/sheaf-size-round-up 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: mmap1 cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20261102/202611021441.984cb0bb-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/mmap1/will-it-scale commit: 6ae424d6ef ("EDITME: cover title for sheaf-size-round-up") 7d63a6c06a ("mm/slab: round up sheaf size to kmalloc size for explicit sheaf_capacity") 6ae424d6eff8059f 7d63a6c06a85030dc4344dc0884 ---------------- --------------------------- %stddev %change %stddev \ | \ 38572109 +54.0% 59400688 will-it-scale.192.processes 200895 +54.0% 309378 will-it-scale.per_process_ops 38572109 +54.0% 59400688 will-it-scale.workload 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