From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E811535B125 for ; Mon, 19 Oct 2026 01:59:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.14 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792375155; cv=none; b=oMxjs7KzGqZyR0zifQrMetc2ePmisjYZ1WpkRPkZhxlkq2AwLGTXHz2YXJpBMyCnY1uJI/lKty8+wl55//QQxjH2FtD6oKw18vDxe4ZOR1h8//z3gNgwaXcn7+u7IJ080wJv62htexOMbMcXZuEvLzMzrjmM8bwIkwYzFZ4v29Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792375155; c=relaxed/simple; bh=7fnx3dXsI2wRJdwIsrpwQJW0BoY5IQYr8pQyudxvv9Y=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=brSot9PxLdP4LCPHss+dbEACxkiC7e3b7zb9aG1BKuDelPtZIBYRmGEMggNzYnMfW1hfYQt3Wm5SRNsnxcGEC8yFnTvgLn+7rqfx+NRTFYvH30kro7q9RVJynlYJc6AjPqW4jjzA46oGnqvL5EByokadSbTrzv8kW2rRqL4kpNA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=EoSTO2+R; arc=none smtp.client-ip=198.175.65.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="EoSTO2+R" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1792375152; x=1823911152; h=date:from:to:cc:subject:message-id:mime-version; bh=7fnx3dXsI2wRJdwIsrpwQJW0BoY5IQYr8pQyudxvv9Y=; b=EoSTO2+RxBzHDNb29PJ+qdNAIuFFwDCpnV0SOAt9ilOaa83QxIWibjnH HVlnyFb69JxjaRELshlNjvIorlTVO7yFjyoCGlskHf+x/a8Ntugf/nNco Hys3tl95X+IIkSi08ZDUQylEQWgf+Xigxl9NmQlKMx+08O3UywHfknIfK NlWfzF31AhBVBK/FyPLO592+gHbPzcgymBwIn654/PP5KocpeaTiZO6IH 3xYGaWaqnl4/xP2bR80IRiaTqQNlCJdRNXYVHPGwigdIKlc1PcCSYBrmx EdMfJ3d0ZxbxL1kv2QzqMZ969XZlnxb7Ivb8kB3b2s3WxxMMmW4iu3fSJ g==; X-CSE-ConnectionGUID: s2y2VsQwThWUOByxsD5xEQ== X-CSE-MsgGUID: vjnIdHEJThGKbIrGSkvrfA== X-IronPort-AV: E=McAfee;i="6800,10657,11939"; a="924652" X-IronPort-AV: E=Sophos;i="6.27,166,1787036400"; d="scan'208";a="924652" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by orvoesa106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Oct 2026 18:59:11 -0700 X-CSE-ConnectionGUID: peGbbfOhSn2jwTT84XRp+A== X-CSE-MsgGUID: rwe68dC6Tkma6YgMmPfUFw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,166,1787036400"; d="scan'208";a="2839779" 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 18:59:06 -0700 Date: Mon, 19 Oct 2026 09:59:01 +0800 From: kernel test robot To: Kefeng Wang Cc: oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org, Andrew Morton , Pedro Falcato , David Hildenbrand , Jann Horn , "Liam R. Howlett" , Lorenzo Stoakes , Vlastimil Babka , Zi Yan , linux-mm@kvack.org, yi1.lai@intel.com Subject: [linus:master] [mm] 7625cb5673: stress-ng.mincore.ops_per_sec 28.1% improvement Message-ID: <202610190930.7aeab52b-lkp@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hello, kernel test robot noticed a 28.1% improvement of stress-ng.mincore.ops_per_sec on: commit: 7625cb56733bfd470e9fae69a1b8b78aa8b1d3eb ("mm: mincore: replace __get_free_page() with kmalloc()") 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: mincore cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20261019/202610190930.7aeab52b-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/mincore/stress-ng/60s commit: 006943a9b4 ("mm: mincore: remove special handling for VM_PFNMAP") 7625cb5673 ("mm: mincore: replace __get_free_page() with kmalloc()") 006943a9b437b2d4 7625cb56733bfd470e9fae69a1b ---------------- --------------------------- %stddev %change %stddev \ | \ 547.22 -25.4% 408.24 stress-ng.mincore.nanosecs_per_mincore_call 27632999 +28.1% 35386493 stress-ng.mincore.ops 460725 +28.1% 590032 stress-ng.mincore.ops_per_sec 1729 +7.1% 1852 stress-ng.time.user_time 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