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]) by smtp.lore.kernel.org (Postfix) with ESMTP id 876B2CE837D for ; Mon, 30 Sep 2024 18:21:38 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 0BEAE28001B; Mon, 30 Sep 2024 14:21:38 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 048EF280017; Mon, 30 Sep 2024 14:21:37 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E036928001B; Mon, 30 Sep 2024 14:21:37 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id B9EF0280017 for ; Mon, 30 Sep 2024 14:21:37 -0400 (EDT) Received: from smtpin23.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 6CBBEA0A45 for ; Mon, 30 Sep 2024 18:21:37 +0000 (UTC) X-FDA: 82622222634.23.C0A8238 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf13.hostedemail.com (Postfix) with ESMTP id 9A6A220002 for ; Mon, 30 Sep 2024 18:21:34 +0000 (UTC) Authentication-Results: imf13.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=DHSESOg3; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf13.hostedemail.com: domain of jlayton@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=jlayton@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1727720355; 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:in-reply-to:references:references:dkim-signature; bh=jumm6vyB7HJlCkAEeImNirFMf1xcPc2RGW4wJgS79tg=; b=X1snwkASyDZa6KX3FSbDHinfBjDclEjJ7kwpEAHiRHPYAsdspT7ofFTzSzU6iJ9cjSOdaQ Cfa6gUcBP7m8pZDMGVTWS92KAi8eNTzpKs22eZk7Mmu63V/6th2SN11pKWjdnJmswcWz6K iecmRcMQg+aM8RwVVVfsyN0CV5CyUoE= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1727720355; a=rsa-sha256; cv=none; b=cLe2aEa910fBHl44YzZ73t/Dl59y96Iz0TC8bJG0RiaOxarXh3TCVlxsxwb3M/rdbu3/lD O1icaqSS3NJtE8TSirHKgjX354JZZldgV0n/DDUdxO+KYHtwyeL0QZWsGNq8oI33V7YUAl O+omO7wNq7KyvDQwIaZ/26mNU/+UH74= ARC-Authentication-Results: i=1; imf13.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=DHSESOg3; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf13.hostedemail.com: domain of jlayton@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=jlayton@kernel.org Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 6C95A5C53C3; Mon, 30 Sep 2024 18:21:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0D447C4CEC7; Mon, 30 Sep 2024 18:21:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1727720493; bh=V7cddzF/pQRz4rqcxRBIlpqzQgQoi45u5QXiGwaYqc0=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=DHSESOg3fnQFakKPORpVkRH2y9YC7O0xLgGTnoAefxCTqIxXKiyaikWECLxyRMaWr aKHOEIGLGrN7+27eU3dPfcFH0RWF0mI7tX792ACOecdW3U2aibFpo5/5J0LE3lyQrN 9oiW6gVdxu/wLerizb5n0W3OhQ01ILlsH/ICCnRTsSaGLR33KRu9QR5yk4hPh3QF1W Ivow0hcN3PgbFV1l6PhZ4/mTiegmsO4BAl+stJo6thFsk075iJE/zaobcHLyIg2LhY VjG6pOGe/okpDnrkJbnQKhzySfgOMT9Y87ODdCyppGC1WqzD7S7+ACAGInSaNgT26g BIxq44fajpctA== Message-ID: <3ae3693f35018e73cc6f629cb88c0a5e305e3137.camel@kernel.org> Subject: Re: [linux-next:master] [xfs] 3062a738d7: filebench.sum_operations/s -85.0% regression From: Jeff Layton To: kernel test robot Cc: Thomas Gleixner , oe-lkp@lists.linux.dev, lkp@intel.com, Linux Memory Management List , Christian Brauner , Josef Bacik , "Darrick J. Wong" , linux-xfs@vger.kernel.org, ying.huang@intel.com, feng.tang@intel.com, fengwei.yin@intel.com Date: Mon, 30 Sep 2024 14:21:30 -0400 In-Reply-To: <202409292200.d8132f52-oliver.sang@intel.com> References: <202409292200.d8132f52-oliver.sang@intel.com> Autocrypt: addr=jlayton@kernel.org; prefer-encrypt=mutual; keydata=mQINBE6V0TwBEADXhJg7s8wFDwBMEvn0qyhAnzFLTOCHooMZyx7XO7dAiIhDSi7G1NPxw n8jdFUQMCR/GlpozMFlSFiZXiObE7sef9rTtM68ukUyZM4pJ9l0KjQNgDJ6Fr342Htkjxu/kFV1Wv egyjnSsFt7EGoDjdKqr1TS9syJYFjagYtvWk/UfHlW09X+jOh4vYtfX7iYSx/NfqV3W1D7EDi0PqV T2h6v8i8YqsATFPwO4nuiTmL6I40ZofxVd+9wdRI4Db8yUNA4ZSP2nqLcLtFjClYRBoJvRWvsv4lm 0OX6MYPtv76hka8lW4mnRmZqqx3UtfHX/hF/zH24Gj7A6sYKYLCU3YrI2Ogiu7/ksKcl7goQjpvtV YrOOI5VGLHge0awt7bhMCTM9KAfPc+xL/ZxAMVWd3NCk5SamL2cE99UWgtvNOIYU8m6EjTLhsj8sn VluJH0/RcxEeFbnSaswVChNSGa7mXJrTR22lRL6ZPjdMgS2Km90haWPRc8Wolcz07Y2se0xpGVLEQ cDEsvv5IMmeMe1/qLZ6NaVkNuL3WOXvxaVT9USW1+/SGipO2IpKJjeDZfehlB/kpfF24+RrK+seQf 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I have a fix that moves the floor handing into the timekeeper, but Thomas said he had a better way to do this, so I haven't resent them yet. The patches in Christian's tree are out of date, so it may be best to just drop them for now until I have the newer set ready. Thanks, Jeff On Sun, 2024-09-29 at 22:36 +0800, kernel test robot wrote: > hi, Jeff Layton, >=20 > we reported > "[jlayton:mgtime] [xfs] 4edee232ed: fio.write_iops -34.9% regression" > in > https://lore.kernel.org/all/202406141453.7a44f956-oliver.sang@intel.com/ >=20 > you asked us to supply further information at that time. >=20 > now we noticed this commit is in linux-next/master, and we observed the > regression for a different test - filebench. FYI. >=20 >=20 >=20 > Hello, >=20 > kernel test robot noticed a -85.0% regression of filebench.sum_operations= /s on: >=20 >=20 > commit: 3062a738d73c866bf50df13bc47a2223b7b47d87 ("xfs: switch to multigr= ain timestamps") > https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master >=20 > testcase: filebench > test machine: 96 threads 2 sockets Intel(R) Xeon(R) Platinum 8260L CPU @ = 2.40GHz (Cascade Lake) with 128G memory > parameters: >=20 > disk: 1HDD > fs: xfs > fs2: nfsv4 > test: filemicro_rwritefsync.f > cpufreq_governor: performance >=20 >=20 >=20 >=20 > If you fix the issue in a separate patch/commit (i.e. not just a new vers= ion of > the same patch/commit), kindly add following tags > > Reported-by: kernel test robot > > Closes: https://lore.kernel.org/oe-lkp/202409292200.d8132f52-oliver.san= g@intel.com >=20 >=20 > Details are as below: > -------------------------------------------------------------------------= -------------------------> >=20 >=20 > The kernel config and materials to reproduce are available at: > https://download.01.org/0day-ci/archive/20240929/202409292200.d8132f52-ol= iver.sang@intel.com >=20 > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > compiler/cpufreq_governor/disk/fs2/fs/kconfig/rootfs/tbox_group/test/test= case: > gcc-12/performance/1HDD/nfsv4/xfs/x86_64-rhel-8.3/debian-12-x86_64-2024= 0206.cgz/lkp-csl-2sp3/filemicro_rwritefsync.f/filebench >=20 > commit:=20 > 42ba4ae657 ("Documentation: add a new file documenting multigrain times= tamps") > 3062a738d7 ("xfs: switch to multigrain timestamps") >=20 > 42ba4ae65752b8cb 3062a738d73c866bf50df13bc47=20 > ---------------- ---------------------------=20 > %stddev %change %stddev > \ | \ =20 > 1.48 -13.5% 1.28 =C2=B1 5% iostat.cpu.iowait > 4.302e+10 =C2=B1 2% -21.9% 3.361e+10 =C2=B1 2% cpuidle..time > 2316977 -10.5% 2072537 cpuidle..usage > 763659 =C2=B1 17% -33.4% 508644 =C2=B1 15% numa-numastat.nod= e1.local_node > 817625 =C2=B1 14% -30.4% 568838 =C2=B1 11% numa-numastat.nod= e1.numa_hit > 0.32 =C2=B1 12% -0.0 0.27 =C2=B1 6% perf-profile.chil= dren.cycles-pp.idle_cpu > 0.31 =C2=B1 12% -0.0 0.26 =C2=B1 6% perf-profile.self= .cycles-pp.idle_cpu > 0.03 =C2=B1 88% +128.5% 0.08 =C2=B1 6% perf-sched.sch_de= lay.avg.ms.schedule_timeout.transaction_kthread.kthread.ret_from_fork > 0.03 =C2=B1 88% +128.5% 0.08 =C2=B1 6% perf-sched.sch_de= lay.max.ms.schedule_timeout.transaction_kthread.kthread.ret_from_fork > 523.13 -18.9% 424.32 =C2=B1 2% uptime.boot > 48962 -18.9% 39691 =C2=B1 2% uptime.idle > 208.10 =C2=B1 7% -67.4% 67.75 =C2=B1 52% numa-vmstat.node0= .nr_mlock > 816180 =C2=B1 14% -30.4% 567697 =C2=B1 11% numa-vmstat.node1= .numa_hit > 762194 =C2=B1 17% -33.4% 507502 =C2=B1 15% numa-vmstat.node1= .numa_local > 4823448 +10.8% 5344826 meminfo.Cached > 244108 =C2=B1 6% -41.9% 141806 =C2=B1 29% meminfo.Dirty > 2242446 +23.2% 2763206 meminfo.Inactive > 1552268 +34.0% 2080318 meminfo.Inactive(file) > 1.49 -0.2 1.29 =C2=B1 5% mpstat.cpu.all.iowait% > 0.10 =C2=B1 2% +0.0 0.12 =C2=B1 4% mpstat.cpu.all.ir= q% > 0.01 =C2=B1 4% +0.0 0.02 =C2=B1 2% mpstat.cpu.all.so= ft% > 0.03 =C2=B1 2% +0.0 0.04 =C2=B1 2% mpstat.cpu.all.us= r% > 2603 =C2=B1 2% +16.6% 3036 =C2=B1 2% vmstat.io.bo > 1.43 -13.6% 1.23 =C2=B1 7% vmstat.procs.b > 2058 -14.7% 1756 vmstat.system.cs > 5528 +21.9% 6738 =C2=B1 2% vmstat.system.in > 2.10 -84.9% 0.32 =C2=B1 21% filebench.sum_bytes_mb= /s > 16385 -85.0% 2456 =C2=B1 13% filebench.sum_operatio= ns > 273.04 -85.0% 40.94 =C2=B1 13% filebench.sum_operatio= ns/s > 0.00 =C2=B1 14% +7.2e+05% 24.14 =C2=B1 13% filebench.sum_tim= e_ms/op > 273.00 -85.0% 41.00 =C2=B1 13% filebench.sum_writes/s > 447.44 =C2=B1 2% -21.9% 349.26 =C2=B1 2% filebench.time.el= apsed_time > 447.44 =C2=B1 2% -21.9% 349.26 =C2=B1 2% filebench.time.el= apsed_time.max > 2343344 +207.9% 7214762 =C2=B1 9% filebench.time.file_sy= stem_outputs > 8762 =C2=B1 2% -80.1% 1747 =C2=B1 6% filebench.time.vo= luntary_context_switches > 269483 =C2=B1 6% -17.0% 223745 =C2=B1 8% sched_debug.cpu.c= lock.avg > 269496 =C2=B1 6% -17.0% 223755 =C2=B1 8% sched_debug.cpu.c= lock.max > 269474 =C2=B1 6% -17.0% 223735 =C2=B1 8% sched_debug.cpu.c= lock.min > 268974 =C2=B1 6% -17.0% 223268 =C2=B1 8% sched_debug.cpu.c= lock_task.avg > 269263 =C2=B1 6% -17.0% 223549 =C2=B1 8% sched_debug.cpu.c= lock_task.max > 261595 =C2=B1 6% -17.5% 215932 =C2=B1 8% sched_debug.cpu.c= lock_task.min > 8873 =C2=B1 4% -12.9% 7731 =C2=B1 5% sched_debug.cpu.c= urr->pid.max > 1033 =C2=B1 3% -9.4% 936.02 =C2=B1 5% sched_debug.cpu.c= urr->pid.stddev > 6038 =C2=B1 5% -27.7% 4366 =C2=B1 7% sched_debug.cpu.n= r_switches.avg > 977.53 =C2=B1 7% -17.2% 809.02 =C2=B1 8% sched_debug.cpu.n= r_switches.min > 269486 =C2=B1 6% -17.0% 223746 =C2=B1 8% sched_debug.cpu_c= lk > 268914 =C2=B1 6% -17.0% 223174 =C2=B1 8% sched_debug.ktime > 270076 =C2=B1 6% -16.9% 224334 =C2=B1 8% sched_debug.sched= _clk > 15708 -6.1% 14746 =C2=B1 2% proc-vmstat.nr_active_= anon > 817011 +120.3% 1799485 =C2=B1 9% proc-vmstat.nr_dirtied > 61152 =C2=B1 6% -42.0% 35491 =C2=B1 30% proc-vmstat.nr_di= rty > 1206117 +10.8% 1335949 proc-vmstat.nr_file_pages > 388315 +33.9% 519818 proc-vmstat.nr_inactive_fil= e > 18531 +1.0% 18721 proc-vmstat.nr_kernel_stack > 16540 -3.8% 15909 proc-vmstat.nr_mapped > 213.82 =C2=B1 4% -53.7% 99.00 =C2=B1 14% proc-vmstat.nr_ml= ock > 25295 -6.6% 23625 proc-vmstat.nr_shmem > 24447 -1.6% 24066 proc-vmstat.nr_slab_reclaim= able > 817011 +120.3% 1799485 =C2=B1 9% proc-vmstat.nr_written > 15708 -6.1% 14746 =C2=B1 2% proc-vmstat.nr_zone_ac= tive_anon > 388315 +33.9% 519818 proc-vmstat.nr_zone_inactiv= e_file > 139175 -19.7% 111713 =C2=B1 7% proc-vmstat.nr_zone_wr= ite_pending > 1299984 -13.1% 1129235 proc-vmstat.numa_hit > 1200290 -14.2% 1029746 proc-vmstat.numa_local > 2273118 =C2=B1 2% -10.2% 2042156 proc-vmstat.pgalloc_no= rmal > 1203036 -18.6% 979402 =C2=B1 2% proc-vmstat.pgfault > 1743917 =C2=B1 2% -13.4% 1509546 proc-vmstat.pgfree > 1171848 -8.8% 1069087 proc-vmstat.pgpgout > 56737 -18.4% 46304 =C2=B1 2% proc-vmstat.pgreuse > 2.40 =C2=B1 2% +7.8% 2.59 =C2=B1 3% perf-stat.i.MPKI > 49439015 +14.9% 56804851 =C2=B1 2% perf-stat.i.branch-ins= tructions > 4.34 +0.1 4.47 perf-stat.i.branch-miss-rat= e% > 2634429 +20.4% 3171479 =C2=B1 2% perf-stat.i.branch-mis= ses > 5.07 =C2=B1 2% +0.4 5.46 =C2=B1 3% perf-stat.i.cache= -miss-rate% > 545304 =C2=B1 4% +22.0% 665397 =C2=B1 5% perf-stat.i.cache= -misses > 7567339 +11.9% 8468261 perf-stat.i.cache-reference= s > 2021 -15.8% 1702 perf-stat.i.context-switche= s > 2.24 +3.8% 2.33 perf-stat.i.cpi > 4.391e+08 +14.4% 5.022e+08 =C2=B1 2% perf-stat.i.cpu-cycles > 102.06 +1.4% 103.52 perf-stat.i.cpu-migrations > 2.401e+08 +15.0% 2.761e+08 =C2=B1 2% perf-stat.i.instructio= ns > 0.01 =C2=B1 6% -100.0% 0.00 perf-stat.i.metric.K/s= ec > 5.33 +0.3 5.58 perf-stat.overall.branch-mi= ss-rate% > 7.21 =C2=B1 4% +0.7 7.86 =C2=B1 5% perf-stat.overall= .cache-miss-rate% > 49259568 +14.8% 56567448 =C2=B1 2% perf-stat.ps.branch-in= structions > 2625073 +20.3% 3158787 =C2=B1 2% perf-stat.ps.branch-mi= sses > 543464 =C2=B1 4% +22.0% 662949 =C2=B1 5% perf-stat.ps.cach= e-misses > 7540908 +11.8% 8433223 perf-stat.ps.cache-referenc= es > 2017 -15.8% 1697 perf-stat.ps.context-switch= es > 4.373e+08 +14.3% 4.999e+08 =C2=B1 2% perf-stat.ps.cpu-cycle= s > 101.82 +1.4% 103.21 perf-stat.ps.cpu-migrations > 2.392e+08 +14.9% 2.75e+08 =C2=B1 2% perf-stat.ps.instructi= ons > 1.072e+11 -10.2% 9.632e+10 perf-stat.total.instruction= s >=20 >=20 >=20 >=20 > Disclaimer: > Results have been estimated based on internal Intel analysis and are prov= ided > for informational purposes only. Any difference in system hardware or sof= tware > design or configuration may affect actual performance. >=20 >=20 --=20 Jeff Layton