From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 653CBCCF2D4 for ; Mon, 19 Oct 2026 01:32:47 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 5B59A6B00D1; Sun, 18 Oct 2026 21:32:46 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 58DDA6B00D2; Sun, 18 Oct 2026 21:32:46 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4C94F6B00D3; Sun, 18 Oct 2026 21:32:46 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 2F7E56B00D1 for ; Sun, 18 Oct 2026 21:32:46 -0400 (EDT) Received: from smtpin18.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay05.hostedemail.com (Postfix) with ESMTP id B7080405BC for ; Mon, 19 Oct 2026 01:32:45 +0000 (UTC) X-FDA: 85337651490.18.A6D7858 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.17]) by imf21.hostedemail.com (Postfix) with ESMTP id 30EB51C0003 for ; Mon, 19 Oct 2026 01:32:42 +0000 (UTC) Authentication-Results: imf21.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=Zmez+VG0; spf=pass (imf21.hostedemail.com: domain of yi1.lai@intel.com designates 198.175.65.17 as permitted sender) smtp.mailfrom=yi1.lai@intel.com; dmarc=pass (policy=none) header.from=intel.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1792373563; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding:in-reply-to: references:dkim-signature; bh=D/2L6ediYCoQEHH7aQLiFtTZWbELizMV1kEoTwu0c+0=; b=AxPxsrFIRCE7E4XDwwDTJQKmCwYPmk2tHbdmVaHytxH9W3/kJHJkQc85Ve5u+ICIp2+iJ3 qc2CcCrzIGb1ZyvpTpcJFq9fPKnfI+zcJd/txPcxa5OAAheXIhntHlVfQW683yBc2ZeFdz /Z6hn4Rpi2Lp8okft+WSvDB5Ujhmna8= ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1792373563; b=IvBTfiTj/lw6TsFMAarfFxcjmv6g+pAvex84sz160ni1xsmXhTmREGQGiD5oeY9D7Wi2Id pmbOQmUgwcl/OFmSgBFSXTx6rGHnku1DU986jfzHW8Z4zPExYExtni4JevHwRStOfTZcgl kcWu0o1OOMCxZTENJSkQGawwJCB8t7w= ARC-Authentication-Results: i=1; imf21.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=Zmez+VG0; spf=pass (imf21.hostedemail.com: domain of yi1.lai@intel.com designates 198.175.65.17 as permitted sender) smtp.mailfrom=yi1.lai@intel.com; dmarc=pass (policy=none) header.from=intel.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1792373564; x=1823909564; h=date:from:to:cc:subject:message-id:mime-version: content-transfer-encoding; bh=RXERPTuL/5y/d7hWDRVXc6d/Cd+HYVuMmBfzY3LpxrU=; b=Zmez+VG02PPYkvO9eH0GhfrHCU+6+BL4k8upG+I9FyWKB6rbtyWA1v9y C5V1/dkYgfPumR5McOFhh4nt9Ud8F18SZ9GJQPIaw7FMPymROa7t7+y/u eoUCrFkNr+JpksG676tng6c+bi0Q9mgU81W7cqjau9qurrsOAjxRYWdUk VFkDfP00wZUGKgHsHPttk2D6DsJgpmeG8C7sMrOEORK75snguF1g0zQEn ipGee3Hjh4ZDLruldwqB7aVZvFFQbDTJpKAv+sr3ppJ21v4ZznzZLZUyi WbeprXcg0u0z01U2D4BiMtMaCO7RjnOPz+337i+CbO8hnSzxeZWDvrzMm w==; X-CSE-ConnectionGUID: JKt0dRdrRfuTHLQke0sGGw== X-CSE-MsgGUID: WsNQPNcGTLeoD7l1T5n5yA== X-IronPort-AV: E=McAfee;i="6800,10657,11939"; a="1069185" X-IronPort-AV: E=Sophos;i="6.27,166,1787036400"; d="scan'208";a="1069185" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Oct 2026 18:32:42 -0700 X-CSE-ConnectionGUID: mNts2OuEQrKepLEn4BeTNg== X-CSE-MsgGUID: CkNwRCGYSNWthbIVwa2dHg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,166,1787036400"; d="scan'208";a="2728948" 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; 18 Oct 2026 18:32:37 -0700 Date: Mon, 19 Oct 2026 09:32:33 +0800 From: kernel test robot To: Barry Song Cc: oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org, Andrew Morton , David Hildenbrand , Kairui Song , Shakeel Butt , Baoquan He , Chris Li , Kemeng Shi , "Liam R. Howlett" , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Nhat Pham , Suren Baghdasaryan , Vlastimil Babka , Usama Arif , linux-mm@kvack.org, yi1.lai@intel.com Subject: [linus:master] [mm] 8d596d8b81: stress-ng.mlockmany.ops_per_sec 10.5% improvement Message-ID: <202610190949.71c20bb5-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit X-Stat-Signature: gg39jcwtbi9r4khh9a6ed13eyjtwx3ay X-Rspam-User: X-Rspamd-Queue-Id: 30EB51C0003 X-Rspamd-Server: rspam10 X-HE-Tag: 1792373562-60374 X-HE-Meta: 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 CEOLd/ys k+rsJ4+OH0+7bvQVzEd3kHKU5kyp8eUOpEH31J4K0J4DXHXWEwt7Bv5dNaEKMfw1ttOLjJBB2sIMmD4s4AApjyyaTCVRFS3lOvUcQie8fUBB5zrE3AizkelycTDhBz5Sak0FfYnShu3d0aJDwnVyNcrjdVT1wfEHiGhvjwwF6g98nz1iDepBOj8Lsv9A5+HfTeUkGYOCDJM0nUqZUa5b1Mj4kvT0dDAC/OMqOaRBKBGk3HzDlYjI0ARMaJnruZO8irxx4qy1JIMUBMkgV1V0vTz+SDvw+LrvKc9ebXNMP/9xigaYjPMME/MRAOyt55mTKIDmDL9rON9z5QrQk8KgW88yIP/mD673HBzGDRLX18Gxt9YIpzZGZJFt3XFooi5aZbQaPahHQxzx7nACDhjyOAYlxVw== 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 10.5% improvement of stress-ng.mlockmany.ops_per_sec on: commit: 8d596d8b81ef56bf61538d6b4761a7b0d6138280 ("mm: avoid unnecessary lru drain for wp_can_reuse_anon_folio()") 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: mlockmany cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20261019/202610190949.71c20bb5-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/mlockmany/stress-ng/60s commit: 819bfbd47e ("mm/page_alloc: remove set_page_private() in prep_compound_tail()") 8d596d8b81 ("mm: avoid unnecessary lru drain for wp_can_reuse_anon_folio()") 819bfbd47e49df89 8d596d8b81ef56bf61538d6b476 ---------------- --------------------------- %stddev %change %stddev \ | \ 1050118 +10.6% 1161061 ± 2% stress-ng.mlockmany.ops 17541 +10.5% 19384 ± 2% stress-ng.mlockmany.ops_per_sec 2933233 -7.5% 2714192 stress-ng.time.involuntary_context_switches 76.26 +29.3% 98.61 ± 3% stress-ng.time.user_time 2425877 +9.4% 2654908 ± 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