From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=198.175.65.11 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792466901; b=HPhZyqefJL4OBv2CkJfrehka/c0rNlW6SZZNtVanSV6d8IKNI0Waf/nJatNIu4Z79FmK XnMNQz6fe9DSCRwEoksLNQ5B4KVHCS9KEgp54cMI/QFpw6uyH0MAv/YpFa/0jjBwrAJ50 gdjtQnAg6Sdpr/0EnhX/tAbhGwKiO35GzNUo+C7LvIr5jmUyrtd8sOn2zuYhxPB1Yp2un gtjyBgA+SET4denDYzmAZQiB4mB1QhfCPEP18S88nLCqofuOdaX+RX9tnekurF36CYO3M Lv/HEAXzcnW82lPBm8laWD0fT4PBgKzEv3OXoiorLmkxPfOylV3baTIIyIXouqh7DuA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792466901; h=DMARC-Filter:DKIM-Signature:X-CSE-ConnectionGUID:X-CSE-MsgGUID: X-IronPort-AV:X-IronPort-AV:Received:X-CSE-ConnectionGUID: X-CSE-MsgGUID:X-ExtLoop1:X-IronPort-AV:Received:Date:From:To:Cc: Subject:Message-ID:MIME-Version:Content-Type:Content-Disposition; bh=S11a+q8uthZ6OT5iMGLLaaA4xbs8NGH8wBdksxAdcnA=; b=XvatXzvUvlFGJ30SgaTv29aUKSNF0g1T5mG7hH2Sn10uFzodfP152J+uFyDnqVazxLTn ED4UneiZz0G3rjN38mhET1HETMPM033Bica8GhEAbmJeUA3qDYTboWihqtTqkpTKC4maA ew7fgJiEuwDAIKXxjGDCTcyMBRETkgcgQfWkT1+5ur2KJ2LMB6wGZ6mTcxLzKQj6vfisj BgM1Kmpg4djx0SToc4tyWczsA27B+Hrj+n8mAR2jOFGyuKWj3Vowm4UqfxXO8RAkUvPwp y1kgZmWPoFOY193cjMQoNbs+KECMhhwDrJtSOSS6Ll3byKIx+u+Xg8AcZkywTOjQsTA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=A46efsRJ; arc=none smtp.remote-ip=198.175.65.11 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 257B9606A31A; Tue, 20 Oct 2026 03:28:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 257B9606A31A 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, unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=A46efsRJ DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1792466900; x=1824002900; h=date:from:to:cc:subject:message-id:mime-version; bh=84pyQ5wUPTxCJ+9dBxDxuHt9gdguUz9LkGze+cgGaAk=; b=A46efsRJxvlzV6DwXq+Fqsi2GvDRpANtnfEqIfXglromCTWZZFzRDPga JscrmH0qcW+N9jAdNsxrod+UWL3Y4gUQhNRrpB0oV0TA3oltES6tuzfnN RxwoA4TsSj6/U+6eQINeJl7C1/xwUq83L587Xg+q1AGaR5RBAhLu5IbcJ M+4UEVW3J1VsT0NbFKFW2cz3QOpAxIeP2IRF3DfxjMeopi74U8digm8E0 uRfmEEZJblrVmuS/bg0bLU86tnBwixCWCpQ5qFX2T+1S6S/eN4Nz0RRZn h6qGJHdXx2xlTgrVVGSg0nE60KV7bRrP/APdaDf63qR/senifKf6WCvf1 Q==; X-CSE-ConnectionGUID: S2vl5vSoTLqEpvsO8zcsqA== X-CSE-MsgGUID: VOtOJoCiQd6DJTmWbYS6Iw== X-IronPort-AV: E=McAfee;i="6800,10657,11940"; a="1047346" X-IronPort-AV: E=Sophos;i="6.27,168,1787036400"; d="scan'208";a="1047346" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Oct 2026 20:28:19 -0700 X-CSE-ConnectionGUID: c/57Hva4RUu21ZxF9b1dzw== X-CSE-MsgGUID: VX4ZR1j0Tpu4Xwrq6ZGaCQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,168,1787036400"; d="scan'208";a="3167669" 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; 19 Oct 2026 20:28:16 -0700 Date: Tue, 20 Oct 2026 11:28:13 +0800 From: kernel test robot To: Chengfeng Ye Cc: oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org, Steffen Klassert , netdev@vger.kernel.org, yi1.lai@intel.com Subject: [linus:master] [xfrm] 89fefad9f9: stress-ng.epoll.ops_per_sec 25.4% regression Message-ID: <202610201112.ddb3ab07-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=us-ascii Content-Disposition: inline Hello, kernel test robot noticed a 25.4% regression of stress-ng.epoll.ops_per_sec on: commit: 89fefad9f971bc637fb22373078144f2563c4be9 ("xfrm: serialize state GC with device state flush") 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: epoll 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/202610201112.ddb3ab07-lkp@intel.com Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20261020/202610201112.ddb3ab07-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/epoll/stress-ng/60s commit: d042487dc1 ("xfrm: iptfs: fix stack OOB read in iptfs_skb_reset_frag_walk()") 89fefad9f9 ("xfrm: serialize state GC with device state flush") d042487dc118e494 89fefad9f971bc637fb22373078 ---------------- --------------------------- %stddev %change %stddev \ | \ 1.889e+08 -25.4% 1.41e+08 stress-ng.epoll.ops 3146137 -25.4% 2347837 stress-ng.epoll.ops_per_sec 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