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Tue, 21 Mar 2023 09:42:16 +0000 Message-ID: Date: Tue, 21 Mar 2023 17:42:05 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0 Thunderbird/102.9.0 Subject: Re: [smb3] 5efdd9122e: filebench.sum_operations/s -50.0% regression To: Steve French CC: kernel test robot , Steve French , , , Bharath SM , Shyam Prasad N , "Paulo Alcantara (SUSE)" , , , , , , , References: <20220826022031.GA76590@inn2.lkp.intel.com> <95e604ff-516a-4f7c-7f2c-8ff3d2cc66fa@intel.com> Content-Language: en-US From: "Yin, Fengwei" In-Reply-To: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-ClientProxiedBy: SG2PR04CA0189.apcprd04.prod.outlook.com (2603:1096:4:14::27) To CO1PR11MB4820.namprd11.prod.outlook.com (2603:10b6:303:6f::8) Precedence: bulk X-Mailing-List: regressions@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PR11MB4820:EE_|CY8PR11MB6988:EE_ X-MS-Office365-Filtering-Correlation-Id: 28082641-aa80-481a-00d9-08db29f08e10 X-LD-Processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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I am still trying to figure out how to dump this file in our automation system. I will send out the data once I get it work. Thanks. Regards Yin, Fengwei > > On Wed, Mar 15, 2023 at 2:46 AM Yin, Fengwei wrote: >> >> >> >> On 8/26/2022 10:41 AM, kernel test robot wrote: >>> Greeting, >>> >>> FYI, we noticed a -50.0% regression of filebench.sum_operations/s due to commit: >>> >>> >>> commit: 5efdd9122eff772eae2feae9f0fc0ec02d4846a3 ("smb3: allow deferred close timeout to be configurable") >>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master >>> >>> in testcase: filebench >>> on test machine: 88 threads 2 sockets Intel(R) Xeon(R) Gold 6238M CPU @ 2.10GHz (Cascade Lake) with 128G memory >>> with following parameters: >>> >>> disk: 1HDD >>> fs: ext4 >>> fs2: cifs >>> test: filemicro_delete.f >>> cpufreq_governor: performance >>> ucode: 0x5003302 >> Please note, we still could see this regresion on v6.3-rc2. And the regression is related with >> the commit: 5efdd9122eff772eae2feae9f0fc0ec02d4846a3. This commit changed the default timeout >> value from 1s to 5s. If change the timeout back to 1s as following: >> >> diff --git a/fs/cifs/fs_context.c b/fs/cifs/fs_context.c >> index 6d13f8207e96..6b930fb0c4bd 100644 >> --- a/fs/cifs/fs_context.c >> +++ b/fs/cifs/fs_context.c >> @@ -1537,7 +1537,7 @@ int smb3_init_fs_context(struct fs_context *fc) >> >> ctx->acregmax = CIFS_DEF_ACTIMEO; >> ctx->acdirmax = CIFS_DEF_ACTIMEO; >> - ctx->closetimeo = SMB3_DEF_DCLOSETIMEO; >> + ctx->closetimeo = CIFS_DEF_ACTIMEO; >> >> /* Most clients set timeout to 0, allows server to use its default */ >> ctx->handle_timeout = 0; /* See MS-SMB2 spec section 2.2.14.2.12 */ >> >> The regression is gone: >> dcb45fd7f501f864 v6.3-rc2 32715af441411a5a266606be08f >> ---------------- --------------------------- --------------------------- >> fail:runs %reproduction fail:runs %reproduction fail:runs >> | | | | | >> :25 0% :3 33% 1:3 last_state.booting >> :25 0% :3 33% 1:3 last_state.is_incomplete_run >> %stddev %change %stddev %change %stddev >> \ | \ | \ >> 515.95 -50.0% 257.98 -0.0% 515.92 filebench.sum_operations/s >> 5.04 ± 7% +833.7% 47.09 ± 2% -2.9% 4.90 ± 2% filebench.sum_time_ms/op >> 10438 -100.0% 0.33 ±141% -100.0% 0.50 ±100% filebench.time.major_page_faults >> 167575 -4.1% 160660 -4.4% 160140 filebench.time.maximum_resident_set_size >> 7138 ± 11% +141.4% 17235 ± 3% +147.6% 17677 filebench.time.minor_page_faults >> 28.68 ± 9% +199.9% 86.00 ± 7% -2.4% 28.00 filebench.time.percent_of_cpu_this_job_got >> 2453485 ± 54% -63.0% 907380 -66.2% 830273 ± 6% cpuidle..usage >> 0.61 ± 38% +0.8 1.41 ± 3% +0.2 0.80 ± 4% mpstat.cpu.all.sys% >> 142984 ± 13% -45.6% 77725 -47.5% 75106 vmstat.system.in >> 34.23 ± 7% +27.9% 43.79 +27.8% 43.74 boot-time.boot >> 17.09 ± 11% +66.0% 28.38 +65.5% 28.28 boot-time.dhcp >> 2661 ± 7% +37.5% 3659 +37.2% 3651 boot-time.idle >> 104737 ±185% -87.8% 12762 ± 10% -89.8% 10631 ± 4% turbostat.C1 >> >> >> 32715af441411a5a266606be08f is v6.3-rc2 with the change to restore the timeout to 1s. Thanks. >> >> Regards >> Yin, Fengwei >> >> >>> >>> >>> ========================================================================================= >>> compiler/cpufreq_governor/disk/fs2/fs/kconfig/rootfs/tbox_group/test/testcase/ucode: >>> gcc-11/performance/1HDD/cifs/ext4/x86_64-rhel-8.3/debian-11.1-x86_64-20220510.cgz/lkp-csl-2sp9/filemicro_delete.f/filebench/0x5003302 >>> >>> commit: >>> dcb45fd7f5 ("cifs: Do not use tcon->cfid directly, use the cfid we get from open_cached_dir") >>> 5efdd9122e ("smb3: allow deferred close timeout to be configurable") >>> >>> dcb45fd7f501f864 5efdd9122eff772eae2feae9f0f >>> ---------------- --------------------------- >>> %stddev %change %stddev >>> \ | \ >>> 515.95 -50.0% 257.98 filebench.sum_operations/s >>> 4.81 ± 2% +1038.4% 54.78 ± 6% filebench.sum_time_ms/op >>> 29.00 ± 8% +212.1% 90.50 ± 3% filebench.time.percent_of_cpu_this_job_got >>> 24629 +2.7% 25297 filebench.time.voluntary_context_switches >>> 7.685e+08 +19.3% 9.169e+08 ± 4% cpuidle..time >>> 2.53 ± 6% -20.6% 2.00 ± 3% iostat.cpu.iowait >>> 1506141 ± 8% +22.4% 1843256 ± 3% turbostat.IRQ >>> 2.00 -50.0% 1.00 vmstat.procs.b >>> 21969 ± 2% -9.5% 19885 ± 2% vmstat.system.cs >>> 3.06 ± 7% -0.7 2.35 ± 4% mpstat.cpu.all.iowait% >>> 0.79 ± 5% +0.5 1.27 ± 2% mpstat.cpu.all.sys% >>> 0.89 ± 3% -0.1 0.79 ± 3% mpstat.cpu.all.usr% >>> 34.55 ± 14% -34.8% 22.51 ± 27% sched_debug.cfs_rq:/.removed.runnable_avg.avg >>> 119.64 ± 3% -20.0% 95.69 ± 17% sched_debug.cfs_rq:/.removed.runnable_avg.stddev >>> 34.55 ± 14% -34.8% 22.51 ± 27% sched_debug.cfs_rq:/.removed.util_avg.avg >>> 119.64 ± 3% -20.0% 95.69 ± 17% sched_debug.cfs_rq:/.removed.util_avg.stddev >>> 5249 +15.8% 6076 meminfo.Active >>> 3866 ± 2% +17.7% 4552 meminfo.Active(anon) >>> 1382 ± 4% +10.3% 1524 ± 4% meminfo.Active(file) >>> 69791 ± 14% +39.8% 97553 ± 6% meminfo.AnonHugePages >>> 72709 ± 2% +12.5% 81779 ± 3% meminfo.Inactive(file) >>> 23219 +13.5% 26352 ± 3% meminfo.KernelStack >>> 966.50 ± 2% +17.7% 1137 proc-vmstat.nr_active_anon >>> 74302 +6.3% 78977 ± 2% proc-vmstat.nr_anon_pages >>> 81133 +6.0% 85973 proc-vmstat.nr_inactive_anon >>> 18172 ± 2% +12.5% 20442 ± 3% proc-vmstat.nr_inactive_file >>> 23213 +13.5% 26348 ± 3% proc-vmstat.nr_kernel_stack >>> 17983 +2.3% 18400 proc-vmstat.nr_mapped >>> 7446 ± 2% +5.5% 7853 ± 3% proc-vmstat.nr_shmem >>> 26888 +1.6% 27306 proc-vmstat.nr_slab_reclaimable >>> 47220 +3.4% 48803 proc-vmstat.nr_slab_unreclaimable >>> 966.50 ± 2% +17.7% 1137 proc-vmstat.nr_zone_active_anon >>> 81133 +6.0% 85973 proc-vmstat.nr_zone_inactive_anon >>> 18172 ± 2% +12.5% 20442 ± 3% proc-vmstat.nr_zone_inactive_file >>> 361460 +2.5% 370454 proc-vmstat.numa_hit >>> 946.67 +18.6% 1122 proc-vmstat.pgactivate >>> 361562 +2.5% 370553 proc-vmstat.pgalloc_normal >>> 187906 +4.7% 196761 proc-vmstat.pgfault >>> 8189 +2.5% 8395 proc-vmstat.pgreuse >>> 1.097e+09 +15.5% 1.267e+09 ± 7% perf-stat.i.branch-instructions >>> 39079265 ± 6% -20.9% 30915354 ± 4% perf-stat.i.branch-misses >>> 5093263 ± 4% -23.7% 3884752 ± 9% perf-stat.i.cache-misses >>> 29213 -18.7% 23764 ± 5% perf-stat.i.context-switches >>> 7.666e+09 ± 4% +5.7% 8.106e+09 ± 2% perf-stat.i.cpu-cycles >>> 1877 ± 15% +75.1% 3287 ± 12% perf-stat.i.cycles-between-cache-misses >>> 1735450 ± 3% -12.9% 1512060 ± 3% perf-stat.i.iTLB-load-misses >>> 2898 ± 3% +34.4% 3895 ± 7% perf-stat.i.instructions-per-iTLB-miss >>> 1493 -20.3% 1190 ± 7% perf-stat.i.major-faults >>> 0.09 ± 3% +5.8% 0.09 ± 2% perf-stat.i.metric.GHz >>> 48.47 ± 11% +8.4 56.83 ± 7% perf-stat.i.node-store-miss-rate% >>> 283426 ± 4% -21.6% 222190 ± 10% perf-stat.i.node-stores >>> 3.57 ± 7% -1.1 2.44 ± 6% perf-stat.overall.branch-miss-rate% >>> 1508 ± 3% +39.8% 2108 ± 9% perf-stat.overall.cycles-between-cache-misses >>> 3022 ± 3% +23.6% 3736 ± 5% perf-stat.overall.instructions-per-iTLB-miss >>> 9.585e+08 +18.8% 1.138e+09 ± 6% perf-stat.ps.branch-instructions >>> 34151514 ± 6% -18.8% 27725316 ± 4% perf-stat.ps.branch-misses >>> 4450329 ± 5% -21.7% 3486409 ± 9% perf-stat.ps.cache-misses >>> 25524 -16.4% 21333 ± 4% perf-stat.ps.context-switches >>> 77139 +2.5% 79105 perf-stat.ps.cpu-clock >>> 6.704e+09 ± 4% +8.7% 7.287e+09 perf-stat.ps.cpu-cycles >>> 1.06e+09 +11.3% 1.18e+09 ± 5% perf-stat.ps.dTLB-loads >>> 1517349 ± 3% -10.5% 1357716 ± 2% perf-stat.ps.iTLB-load-misses >>> 4.582e+09 +10.8% 5.075e+09 ± 6% perf-stat.ps.instructions >>> 1296 -18.1% 1061 ± 6% perf-stat.ps.major-faults >>> 247613 ± 4% -19.5% 199283 ± 9% perf-stat.ps.node-stores >>> 77139 +2.5% 79105 perf-stat.ps.task-clock >>> 3.697e+10 +35.3% 5.003e+10 perf-stat.total.instructions >>> 8.51 ± 91% -6.9 1.59 ±223% perf-profile.calltrace.cycles-pp.getdents64 >>> 8.34 ± 83% -6.7 1.67 ±141% perf-profile.calltrace.cycles-pp.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe >>> 6.25 ±107% -6.2 0.00 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.open64 >>> 6.25 ±107% -6.2 0.00 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64 >>> 6.25 ±107% -6.2 0.00 perf-profile.calltrace.cycles-pp.open64 >>> 7.63 ± 84% -6.0 1.59 ±223% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.getdents64 >>> 7.63 ± 84% -6.0 1.59 ±223% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.getdents64 >>> 7.63 ± 84% -6.0 1.59 ±223% perf-profile.calltrace.cycles-pp.__x64_sys_getdents64.do_syscall_64.entry_SYSCALL_64_after_hwframe.getdents64 >>> 7.63 ± 84% -6.0 1.59 ±223% perf-profile.calltrace.cycles-pp.iterate_dir.__x64_sys_getdents64.do_syscall_64.entry_SYSCALL_64_after_hwframe.getdents64 >>> 6.26 ±115% -5.4 0.88 ±223% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe >>> 6.26 ±115% -5.4 0.88 ±223% perf-profile.calltrace.cycles-pp.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe >>> 6.26 ±115% -4.6 1.67 ±141% perf-profile.calltrace.cycles-pp.do_group_exit.get_signal.arch_do_signal_or_restart.exit_to_user_mode_loop.exit_to_user_mode_prepare >>> 6.26 ±115% -4.6 1.67 ±141% perf-profile.calltrace.cycles-pp.do_exit.do_group_exit.get_signal.arch_do_signal_or_restart.exit_to_user_mode_loop >>> 6.26 ±115% -4.6 1.67 ±141% perf-profile.calltrace.cycles-pp.arch_do_signal_or_restart.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64 >>> 6.26 ±115% -4.6 1.67 ±141% perf-profile.calltrace.cycles-pp.get_signal.arch_do_signal_or_restart.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode >>> 4.57 ± 73% -3.8 0.76 ±223% perf-profile.calltrace.cycles-pp.asm_exc_page_fault.perf_mmap__read_head.perf_mmap__push.record__mmap_read_evlist.__cmd_record >>> 4.57 ± 73% -3.8 0.76 ±223% perf-profile.calltrace.cycles-pp.exc_page_fault.asm_exc_page_fault.perf_mmap__read_head.perf_mmap__push.record__mmap_read_evlist >>> 4.57 ± 73% -3.8 0.76 ±223% perf-profile.calltrace.cycles-pp.do_user_addr_fault.exc_page_fault.asm_exc_page_fault.perf_mmap__read_head.perf_mmap__push >>> 4.57 ± 73% -3.8 0.76 ±223% perf-profile.calltrace.cycles-pp.perf_mmap__read_head.perf_mmap__push.record__mmap_read_evlist.__cmd_record.cmd_record >>> 3.38 ±103% -3.4 0.00 perf-profile.calltrace.cycles-pp.unmap_vmas.exit_mmap.mmput.exit_mm.do_exit >>> 3.38 ±103% -3.4 0.00 perf-profile.calltrace.cycles-pp.unmap_page_range.unmap_vmas.exit_mmap.mmput.exit_mm >>> 3.38 ±103% -3.4 0.00 perf-profile.calltrace.cycles-pp.zap_pmd_range.unmap_page_range.unmap_vmas.exit_mmap.mmput >>> 3.38 ±103% -3.4 0.00 perf-profile.calltrace.cycles-pp.zap_pte_range.zap_pmd_range.unmap_page_range.unmap_vmas.exit_mmap >>> 8.51 ± 91% -6.9 1.59 ±223% perf-profile.children.cycles-pp.getdents64 >>> 8.34 ± 83% -6.7 1.67 ±141% perf-profile.children.cycles-pp.exit_to_user_mode_prepare >>> 8.34 ± 83% -6.7 1.67 ±141% perf-profile.children.cycles-pp.exit_to_user_mode_loop >>> 8.34 ± 83% -6.7 1.67 ±141% perf-profile.children.cycles-pp.syscall_exit_to_user_mode >>> 6.25 ±107% -6.2 0.00 perf-profile.children.cycles-pp.open64 >>> 7.63 ± 84% -6.0 1.59 ±223% perf-profile.children.cycles-pp.__x64_sys_getdents64 >>> 7.63 ± 84% -6.0 1.59 ±223% perf-profile.children.cycles-pp.iterate_dir >>> 6.26 ±115% -4.6 1.67 ±141% perf-profile.children.cycles-pp.arch_do_signal_or_restart >>> 6.26 ±115% -4.6 1.67 ±141% perf-profile.children.cycles-pp.get_signal >>> 4.57 ± 73% -3.8 0.76 ±223% perf-profile.children.cycles-pp.perf_mmap__read_head >>> 3.38 ±103% -3.4 0.00 perf-profile.children.cycles-pp.unmap_vmas >>> 3.38 ±103% -3.4 0.00 perf-profile.children.cycles-pp.unmap_page_range >>> 3.38 ±103% -3.4 0.00 perf-profile.children.cycles-pp.zap_pmd_range >>> 3.38 ±103% -3.4 0.00 perf-profile.children.cycles-pp.zap_pte_range >>> 8.54 ± 43% +8.6 17.19 ± 38% perf-profile.children.cycles-pp.asm_exc_page_fault >>> >>> >>> If you fix the issue, kindly add following tag >>> Reported-by: kernel test robot >>> >>> >>> To reproduce: >>> >>> git clone https://github.com/intel/lkp-tests.git >>> cd lkp-tests >>> sudo bin/lkp install job.yaml # job file is attached in this email >>> bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run >>> sudo bin/lkp run generated-yaml-file >>> >>> # if come across any failure that blocks the test, >>> # please remove ~/.lkp and /lkp dir to run from a clean state. >>> >>> >>> 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. >>> >>> >>> #regzbot introduced: 5efdd9122e >>> >>> > > >