From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.7]) (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 915FF1ADC97 for ; Wed, 23 Sep 2026 01:01:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.7 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790125267; cv=none; b=r7IsCNlLZ+AvEkDR+afKbPcJVAs/cyTkwiMa80kLMBmewO0bv7E9CfnWSmD7wnah8ci9rea/gwXQMBt3gnNIQATStlRmyfwrCyE96/R6QyuetG6/vc48TLgbbwc0knJe/znst4Ht6mbvd38vahYWlc1baSuWAGK42CNtNZNbMPw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790125267; c=relaxed/simple; bh=74O1kp/nZApmmjBc7sKM2+VS4aA5/+dj08DdtbaNMyI=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=E3aJE4TbMm/tteEmdSPT2h5cjHeUPail7kbp3zpSxyyh1ychXlpkkQWOH/4lohcT/HTdioY4x0ygAVBAi9deWRH+MSqpaZL0JCOfplxykH2y6DzKvxgUm0gQlIrRBwn4Y2jLllmR0RuM7h4UteLiiurHQd8vFzQeDkd83NQyS6E= 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=V5YPYDn9; arc=none smtp.client-ip=192.198.163.7 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="V5YPYDn9" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1790125265; x=1821661265; h=date:from:to:cc:subject:message-id:mime-version: content-transfer-encoding; bh=74O1kp/nZApmmjBc7sKM2+VS4aA5/+dj08DdtbaNMyI=; b=V5YPYDn9a/kW4EMwB0KWIpqzxbESTWH3SC8tnYV/VwtJkQH813KpFmIk BfDWGqycrv8EH/BRJbehbqimbZqugArdhPsWo+TvYl35tUtcv58GsrB7b CSjQCs4etyu52PUMGOw+G9OxMCiqLCInalcFWDgFvYx5ds5CkHGSDJbQf Z46JaKs5J/p4IAKvLaatVdXkMPYbBwf4uQ8F1na3rrR3vH2m356tSy7Xo CebyDvp3ZL3EvpQbXgG4ePfum1bFUHFazSC37kRiZEhmGLdHCkncfdUEy PsSofmlxRYEJOspHqaWLfuRCRLzLgw0Zg9JpmtWZkzscqVFbEH6UorMSc g==; X-CSE-ConnectionGUID: gYfk1K1/T2++XQdK+swStQ== X-CSE-MsgGUID: P8VikHVvSHq9i4hB1zkvGw== X-IronPort-AV: E=McAfee;i="6800,10657,11913"; a="116303994" X-IronPort-AV: E=Sophos;i="6.27,117,1787036400"; d="scan'208";a="116303994" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Sep 2026 18:01:05 -0700 X-CSE-ConnectionGUID: ti1bcWrYTQuQFr18gyFW6w== X-CSE-MsgGUID: +8ft8is0RFGwWC+LqX5l9g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,117,1787036400"; d="scan'208";a="281446757" Received: from ly-workstation.sh.intel.com (HELO ly-workstation) ([10.239.182.64]) by fmviesa005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Sep 2026 18:01:00 -0700 Date: Wed, 23 Sep 2026 09:00:57 +0800 From: kernel test robot To: Lorenzo Stoakes Cc: oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org, Andrew Morton , Daehyeon Ko <4ncienth@gmail.com>, Mike Rapoport , David Hildenbrand , Alexei Starovoitov , "David S. Miller" , Hagen Paul Pfeifer , Jakub Kacinski , James Bottomley , Jesper Dangaard Brouer , John Fastabend , "Liam R. Howlett" , Michal Hocko , Stanislav Fomichev , Suren Baghdasaryan , Vlastimil Babka , linux-mm@kvack.org, yi1.lai@intel.com Subject: [linus:master] [mm/secretmem] 97d34aa65c: stress-ng.secretmem.ops_per_sec 99.5% regression Message-ID: <202609230824.7a9189aa-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=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit Hello, kernel test robot noticed a 99.5% regression of stress-ng.secretmem.ops_per_sec on: commit: 97d34aa65c29cca85e3e9050f4c936389b38a054 ("mm/secretmem: properly account locked pages") 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: 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480CTDX (Sapphire Rapids) with 256G memory parameters: nr_threads: 100% testtime: 60s test: secretmem cpufreq_governor: performance If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202609230824.7a9189aa-lkp@intel.com Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20260923/202609230824.7a9189aa-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-spr-r02/secretmem/stress-ng/60s commit: 35b0fb391b ("mm/mremap: reset unfaulted VMA page offset for MREMAP_DONTUNMAP") 97d34aa65c ("mm/secretmem: properly account locked pages") 35b0fb391b0df573 97d34aa65c29cca85e3e9050f4c ---------------- --------------------------- %stddev %change %stddev \ | \ 6080503 -99.6% 23092 ± 3% stress-ng.secretmem.ops 85584 -99.5% 385.28 ± 3% stress-ng.secretmem.ops_per_sec 71.48 -16.0% 60.07 stress-ng.time.elapsed_time 71.48 -16.0% 60.07 stress-ng.time.elapsed_time.max 97435 ± 2% +1276.4% 1341103 stress-ng.time.involuntary_context_switches 230308 -96.1% 9096 stress-ng.time.maximum_resident_set_size 18401243 +3349.6% 6.348e+08 stress-ng.time.minor_page_faults 20417 -8.7% 18639 stress-ng.time.percent_of_cpu_this_job_got 14581 -25.0% 10937 stress-ng.time.system_time 13.34 +1858.5% 261.33 stress-ng.time.user_time 6898 ± 2% +96037.7% 6631576 ± 3% 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