From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============9198260378434836270==" MIME-Version: 1.0 From: Huang Ying To: lkp@lists.01.org Subject: [rcu] cd73ca21cd2: No primary result change, +47.6% aim7.time.involuntary_context_switches Date: Fri, 12 Jun 2015 10:32:09 +0800 Message-ID: <1434076329.18774.61.camel@intel.com> List-Id: --===============9198260378434836270== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable FYI, we noticed the below changes on git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master commit cd73ca21cd2bb3711b8d80ba74c90d37ef15fe4d ("rcu: Force wakeup of rcu_= gp_kthread at grace-period end") testcase/path_params/tbox_group: aim7/performance-100-fork_test/lkp-a03 3382adbc1bb8c80e cd73ca21cd2bb3711b8d80ba74 = ---------------- -------------------------- = %stddev %change %stddev \ | \ = 205760 =C2=B1 2% +47.6% 303763 =C2=B1 1% aim7.time.involunta= ry_context_switches 215 =C2=B1 1% +24.7% 268 =C2=B1 22% sched_debug.cfs_rq[= 2]:/.load 205760 =C2=B1 2% +47.6% 303763 =C2=B1 1% time.involuntary_co= ntext_switches 366314 =C2=B1 1% +32.8% 486545 =C2=B1 3% softirqs.RCU 1493 =C2=B1 2% +17.1% 1749 =C2=B1 2% slabinfo.kmalloc-12= 8.num_objs 1374 =C2=B1 1% +20.5% 1656 =C2=B1 2% slabinfo.kmalloc-12= 8.active_objs 4511 =C2=B1 0% +7.5% 4850 =C2=B1 0% vmstat.system.in 7806 =C2=B1 0% +5.9% 8264 =C2=B1 1% vmstat.system.cs 335 =C2=B1 13% +30.2% 436 =C2=B1 12% latency_stats.avg.c= all_rwsem_down_write_failed.copy_process.do_fork.SyS_clone.system_call_fast= path 1266 =C2=B1 1% +18.6% 1501 =C2=B1 0% latency_stats.avg.d= o_wait.SyS_wait4.system_call_fastpath 188 =C2=B1 18% +27.9% 241 =C2=B1 19% latency_stats.avg.s= ync_inodes_sb.sync_inodes_one_sb.iterate_supers.sys_sync.system_call_fastpa= th 955 =C2=B1 9% -29.6% 672 =C2=B1 17% latency_stats.avg.c= all_rwsem_down_write_failed.anon_vma_clone.anon_vma_fork.copy_process.do_fo= rk.SyS_clone.system_call_fastpath 211 =C2=B1 3% -11.1% 188 =C2=B1 4% latency_stats.avg.p= ipe_wait.pipe_read.__vfs_read.vfs_read.SyS_read.system_call_fastpath 1109 =C2=B1 8% -24.0% 842 =C2=B1 18% latency_stats.avg.c= all_rwsem_down_write_failed.anon_vma_fork.copy_process.do_fork.SyS_clone.sy= stem_call_fastpath 3 =C2=B1 0% -33.3% 2 =C2=B1 0% latency_stats.hits.= rpc_wait_bit_killable.__rpc_execute.rpc_execute.rpc_run_task.nfs4_call_sync= _sequence.[nfsv4]._nfs4_proc_getattr.[nfsv4].nfs4_proc_getattr.[nfsv4].__nf= s_revalidate_inode.nfs_getattr.vfs_getattr_nosec.vfs_getattr.vfs_fstat 3 =C2=B1 0% -33.3% 2 =C2=B1 0% latency_stats.hits.= wait_on_page_bit.filemap_fdatawait_range.filemap_fdatawait.filemap_write_an= d_wait.nfs_wb_all.nfs_getattr.vfs_getattr_nosec.vfs_getattr.vfs_fstat.SYSC_= newfstat.SyS_newfstat.system_call_fastpath 1853 =C2=B1 1% +8.4% 2009 =C2=B1 2% latency_stats.hits.= do_wait.SyS_wait4.system_call_fastpath 59 =C2=B1 11% +14.6% 68 =C2=B1 2% latency_stats.hits.= call_rwsem_down_write_failed.cgroup_post_fork.copy_process.do_fork.SyS_clon= e.system_call_fastpath 28538 =C2=B1 10% -18.5% 23253 =C2=B1 5% latency_stats.max.c= all_rwsem_down_write_failed.anon_vma_clone.anon_vma_fork.copy_process.do_fo= rk.SyS_clone.system_call_fastpath 32316 =C2=B1 17% -17.6% 26627 =C2=B1 6% latency_stats.max.c= all_rwsem_down_write_failed.anon_vma_fork.copy_process.do_fork.SyS_clone.sy= stem_call_fastpath 2347345 =C2=B1 2% +28.6% 3019561 =C2=B1 3% latency_stats.sum.d= o_wait.SyS_wait4.system_call_fastpath 3596 =C2=B1 10% +20.5% 4333 =C2=B1 6% latency_stats.sum.w= ait_on_page_bit_killable.__lock_page_or_retry.filemap_fault.__do_fault.hand= le_pte_fault.handle_mm_fault.__do_page_fault.do_page_fault.page_fault 1335990 =C2=B1 12% +49.7% 2000350 =C2=B1 12% latency_stats.sum.c= all_rwsem_down_write_failed.copy_process.do_fork.SyS_clone.system_call_fast= path 13375861 =C2=B1 15% -29.6% 9420979 =C2=B1 27% latency_stats.sum.c= all_rwsem_down_write_failed.anon_vma_clone.anon_vma_fork.copy_process.do_fo= rk.SyS_clone.system_call_fastpath 1291678 =C2=B1 4% -10.6% 1155232 =C2=B1 3% latency_stats.sum.p= ipe_wait.pipe_read.__vfs_read.vfs_read.SyS_read.system_call_fastpath 567 =C2=B1 18% +27.8% 725 =C2=B1 19% latency_stats.sum.s= ync_inodes_sb.sync_inodes_one_sb.iterate_supers.sys_sync.system_call_fastpa= th 1343 =C2=B1 5% -29.4% 948 =C2=B1 5% latency_stats.sum.w= ait_on_page_bit.filemap_fdatawait_range.filemap_fdatawait.filemap_write_and= _wait.nfs_wb_all.nfs_getattr.vfs_getattr_nosec.vfs_getattr.vfs_fstat.SYSC_n= ewfstat.SyS_newfstat.system_call_fastpath lkp-a03: Atom Memory: 8G softirqs.RCU 520000 ++----------------------------------------------------------------= -+ | O = | 500000 O+ O O O O O O = | 480000 ++ O O O O O O O O O O O = | | O O O O = | 460000 ++ = | 440000 ++ = | | = | 420000 ++ = | 400000 ++ = | | *.. = | 380000 ++ .. *.. .*.. = | 360000 ++ .*.. .*.. .*..*..*.*..*.* *.*..*.*.. .. * *.*.. .*.= .* *..* * * *.* * = | 340000 ++----------------------------------------------------------------= -+ aim7.time.involuntary_context_switches 320000 ++----------------------------------------------------------------= -+ | O O O O O O O O O = | 300000 O+ O O O O O O O O O O = | | O O = | 280000 ++ O = | | = | 260000 ++ = | | = | 240000 ++ = | | = | 220000 ++ = | | .*.*.. .*..*..*. .*.*..*.. .*.. .*..*. .*..*.*.. .*..*. = | 200000 *+ *.*..* *. * * *. * *.= .* | = | 180000 ++----------------------------------------------------------------= -+ time.involuntary_context_switches 320000 ++----------------------------------------------------------------= -+ | O O O O O O O O O = | 300000 O+ O O O O O O O O O O = | | O O = | 280000 ++ O = | | = | 260000 ++ = | | = | 240000 ++ = | | = | 220000 ++ = | | .*.*.. .*..*..*. .*.*..*.. .*.. .*..*. .*..*.*.. .*..*. = | 200000 *+ *.*..* *. * * *. * *.= .* | = | 180000 ++----------------------------------------------------------------= -+ vmstat.system.in 4900 ++---------------------------O--------------------------------------= -+ O O O O O O O O O O O O O = | 4850 ++ O O O O O O O O O = | 4800 ++ = | | = | 4750 ++ = | 4700 ++ = | | = | 4650 ++ = | 4600 ++ = | | = | 4550 ++ .*..*.. .*.. = | 4500 *+.*. .*. .*..*.*.. .*.*..*..*.*..*.*..*..* *.*. *. = .* | *..*. *. *. *.= | 4450 ++------------------------------------------------------------------= -+ [*] bisect-good sample [O] bisect-bad sample To reproduce: apt-get install ruby git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/setup-local job.yaml # the job file attached in this email bin/run-local job.yaml Disclaimer: Results have been estimated based on internal Intel analysis and are provid= ed for informational purposes only. Any difference in system hardware or softw= are design or configuration may affect actual performance. Thanks, Ying Huang ------------------------------------- lkp(a)eclists.intel.com https://eclists.intel.com/sympa/info/lkp Unsubscribe by sending email to sympa(a)eclists.intel.com with subject "Uns= ubscribe lkp" --===============9198260378434836270== Content-Type: text/plain MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="job.yaml" LS0tCkxLUF9TRVJWRVI6IGlubgpMS1BfQ0dJX1BPUlQ6IDgwCnRlc3RjYXNlOiBhaW03CmRlZmF1 bHQtbW9uaXRvcnM6CiAgd2FpdDogcHJlLXRlc3QKICB1cHRpbWU6IAogIGlvc3RhdDogCiAgdm1z dGF0OiAKICBudW1hLW51bWFzdGF0OiAKICBudW1hLXZtc3RhdDogCiAgbnVtYS1tZW1pbmZvOiAK ICBwcm9jLXZtc3RhdDogCiAgcHJvYy1zdGF0OgogICAgaW50ZXJ2YWw6IDEwCiAgbWVtaW5mbzog CiAgc2xhYmluZm86IAogIGludGVycnVwdHM6IAogIGxvY2tfc3RhdDogCiAgbGF0ZW5jeV9zdGF0 czogCiAgc29mdGlycXM6IAogIGJkaV9kZXZfbWFwcGluZzogCiAgZGlza3N0YXRzOiAKICBuZnNz dGF0OiAKICBjcHVpZGxlOiAKICBjcHVmcmVxLXN0YXRzOiAKICB0dXJib3N0YXQ6IAogIHBtZXRl cjogCiAgc2NoZWRfZGVidWc6CiAgICBpbnRlcnZhbDogNjAKZGVmYXVsdC13YXRjaGRvZ3M6CiAg d2F0Y2gtb29tOiAKICB3YXRjaGRvZzogCmNwdWZyZXFfZ292ZXJub3I6IHBlcmZvcm1hbmNlCmNv bW1pdDogNTQ4OTZmMjdkZDVjN2U4M2MzN2M4NWViMTA5M2YxNDU0M2FmMmJmYQptb2RlbDogQXRv bQptZW1vcnk6IDhHCnNzZF9wYXJ0aXRpb25zOiAiL2Rldi9kaXNrL2J5LWlkL2F0YS1JTlRFTF9T U0RTQzJDVzI0MEEzX0NWQ1YyNDA1MDE1NTI0MENHTi1wYXJ0MSIKc3dhcF9wYXJ0aXRpb25zOiAK YWltNzoKICBsb2FkOiAxMDAKICB0ZXN0OiBmb3JrX3Rlc3QKdGVzdGJveDogbGtwLWEwMwp0Ym94 X2dyb3VwOiBsa3AtYTAzCmtjb25maWc6IHg4Nl82NC1yaGVsCmVucXVldWVfdGltZTogMjAxNS0w Ni0xMCAxMDo1NjozNi45MzA0NjA2NDcgKzA4OjAwCnVzZXI6IGxrcApxdWV1ZTogY3ljbGljCmNv bXBpbGVyOiBnY2MtNC45CmhlYWRfY29tbWl0OiA1NDg5NmYyN2RkNWM3ZTgzYzM3Yzg1ZWIxMDkz ZjE0NTQzYWYyYmZhCmJhc2VfY29tbWl0OiBkNGE0Zjc1Y2Q4ZjI5Y2Q5NDY0YTVhMzJlOTIyNGE5 MTU3MWQ2NjQ5CmJyYW5jaDogbmV4dC9tYXN0ZXIKa2VybmVsOiAiL3BrZy9saW51eC94ODZfNjQt cmhlbC9nY2MtNC45LzU0ODk2ZjI3ZGQ1YzdlODNjMzdjODVlYjEwOTNmMTQ1NDNhZjJiZmEvdm1s aW51ei00LjEuMC1yYzctbmV4dC0yMDE1MDYxMCIKcm9vdGZzOiBkZWJpYW4teDg2XzY0LTIwMTUt MDItMDcuY2d6CnJlc3VsdF9yb290OiAiL3Jlc3VsdC9haW03L3BlcmZvcm1hbmNlLTEwMC1mb3Jr X3Rlc3QvbGtwLWEwMy9kZWJpYW4teDg2XzY0LTIwMTUtMDItMDcuY2d6L3g4Nl82NC1yaGVsL2dj Yy00LjkvNTQ4OTZmMjdkZDVjN2U4M2MzN2M4NWViMTA5M2YxNDU0M2FmMmJmYS8wIgpqb2JfZmls ZTogIi9sa3Avc2NoZWR1bGVkL2xrcC1hMDMvY3ljbGljX2FpbTctcGVyZm9ybWFuY2UtMTAwLWZv cmtfdGVzdC14ODZfNjQtcmhlbC1DWUNMSUNfSEVBRC01NDg5NmYyN2RkNWM3ZTgzYzM3Yzg1ZWIx MDkzZjE0NTQzYWYyYmZhLTAtMjAxNTA2MTAtODU1Ni0xNG1zOGpxLnlhbWwiCmRlcXVldWVfdGlt ZTogMjAxNS0wNi0xMSAwNjoxOTo1Ni4wNjY0MDczOTAgKzA4OjAwCm5yX2NwdTogIiQobnByb2Mp IgptYXhfdXB0aW1lOiAxNDk1Ljg5OTk5OTk5OTk5OTkKaW5pdHJkOiAiL29zaW1hZ2UvZGViaWFu L2RlYmlhbi14ODZfNjQtMjAxNS0wMi0wNy5jZ3oiCmJvb3Rsb2FkZXJfYXBwZW5kOgotIHJvb3Q9 L2Rldi9yYW0wCi0gdXNlcj1sa3AKLSBqb2I9L2xrcC9zY2hlZHVsZWQvbGtwLWEwMy9jeWNsaWNf YWltNy1wZXJmb3JtYW5jZS0xMDAtZm9ya190ZXN0LXg4Nl82NC1yaGVsLUNZQ0xJQ19IRUFELTU0 ODk2ZjI3ZGQ1YzdlODNjMzdjODVlYjEwOTNmMTQ1NDNhZjJiZmEtMC0yMDE1MDYxMC04NTU2LTE0 bXM4anEueWFtbAotIEFSQ0g9eDg2XzY0Ci0ga2NvbmZpZz14ODZfNjQtcmhlbAotIGJyYW5jaD1u ZXh0L21hc3RlcgotIGNvbW1pdD01NDg5NmYyN2RkNWM3ZTgzYzM3Yzg1ZWIxMDkzZjE0NTQzYWYy YmZhCi0gQk9PVF9JTUFHRT0vcGtnL2xpbnV4L3g4Nl82NC1yaGVsL2djYy00LjkvNTQ4OTZmMjdk ZDVjN2U4M2MzN2M4NWViMTA5M2YxNDU0M2FmMmJmYS92bWxpbnV6LTQuMS4wLXJjNy1uZXh0LTIw MTUwNjEwCi0gbWF4X3VwdGltZT0xNDk1Ci0gUkVTVUxUX1JPT1Q9L3Jlc3VsdC9haW03L3BlcmZv cm1hbmNlLTEwMC1mb3JrX3Rlc3QvbGtwLWEwMy9kZWJpYW4teDg2XzY0LTIwMTUtMDItMDcuY2d6 L3g4Nl82NC1yaGVsL2djYy00LjkvNTQ4OTZmMjdkZDVjN2U4M2MzN2M4NWViMTA5M2YxNDU0M2Fm MmJmYS8wCi0gTEtQX1NFUlZFUj1pbm4KLSB8Mi0KCgogIGVhcmx5cHJpbnRrPXR0eVMwLDExNTIw MCBzeXN0ZW1kLmxvZ19sZXZlbD1lcnIKICBkZWJ1ZyBhcGljPWRlYnVnIHN5c3JxX2Fsd2F5c19l bmFibGVkIHJjdXBkYXRlLnJjdV9jcHVfc3RhbGxfdGltZW91dD0xMDAKICBwYW5pYz0tMSBzb2Z0 bG9ja3VwX3BhbmljPTEgbm1pX3dhdGNoZG9nPXBhbmljIG9vcHM9cGFuaWMgbG9hZF9yYW1kaXNr PTIgcHJvbXB0X3JhbWRpc2s9MAogIGNvbnNvbGU9dHR5UzAsMTE1MjAwIGNvbnNvbGU9dHR5MCB2 Z2E9bm9ybWFsCgogIHJ3CmxrcF9pbml0cmQ6ICIvbGtwL2xrcC9sa3AteDg2XzY0LmNneiIKbW9k dWxlc19pbml0cmQ6ICIvcGtnL2xpbnV4L3g4Nl82NC1yaGVsL2djYy00LjkvNTQ4OTZmMjdkZDVj N2U4M2MzN2M4NWViMTA5M2YxNDU0M2FmMmJmYS9tb2R1bGVzLmNneiIKYm1faW5pdHJkOiAiL29z aW1hZ2UvZGVwcy9kZWJpYW4teDg2XzY0LTIwMTUtMDItMDcuY2d6L2xrcC5jZ3osL29zaW1hZ2Uv ZGVwcy9kZWJpYW4teDg2XzY0LTIwMTUtMDItMDcuY2d6L3J1bi1pcGNvbmZpZy5jZ3osL29zaW1h Z2UvZGVwcy9kZWJpYW4teDg2XzY0LTIwMTUtMDItMDcuY2d6L3R1cmJvc3RhdC5jZ3osL2xrcC9i ZW5jaG1hcmtzL3R1cmJvc3RhdC5jZ3osL2xrcC9iZW5jaG1hcmtzL2FpbTcteDg2XzY0LmNneiIK am9iX3N0YXRlOiBmaW5pc2hlZApsb2FkYXZnOiA3Ni4xNyA2Ni4xNiAzMS4zNSAxLzEwOSAzMjUx CnN0YXJ0X3RpbWU6ICcxNDMzOTc0ODYwJwplbmRfdGltZTogJzE0MzM5NzUyMjUnCnZlcnNpb246 ICIvbGtwL2xrcC8uc3JjLTIwMTUwNjExLTAyMTI0MiIK --===============9198260378434836270== Content-Type: text/plain MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="reproduce.ksh" ZWNobyBwZXJmb3JtYW5jZSA+IC9zeXMvZGV2aWNlcy9zeXN0ZW0vY3B1L2NwdTAvY3B1ZnJlcS9z Y2FsaW5nX2dvdmVybm9yCmVjaG8gcGVyZm9ybWFuY2UgPiAvc3lzL2RldmljZXMvc3lzdGVtL2Nw dS9jcHUxL2NwdWZyZXEvc2NhbGluZ19nb3Zlcm5vcgplY2hvIHBlcmZvcm1hbmNlID4gL3N5cy9k ZXZpY2VzL3N5c3RlbS9jcHUvY3B1Mi9jcHVmcmVxL3NjYWxpbmdfZ292ZXJub3IKZWNobyBwZXJm b3JtYW5jZSA+IC9zeXMvZGV2aWNlcy9zeXN0ZW0vY3B1L2NwdTMvY3B1ZnJlcS9zY2FsaW5nX2dv dmVybm9yCg== --===============9198260378434836270==-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751560AbbFLCcO (ORCPT ); Thu, 11 Jun 2015 22:32:14 -0400 Received: from mga03.intel.com ([134.134.136.65]:25596 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750861AbbFLCcL (ORCPT ); Thu, 11 Jun 2015 22:32:11 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,599,1427785200"; d="yaml'?scan'208";a="745317069" Message-ID: <1434076329.18774.61.camel@intel.com> Subject: [lkp] [rcu] cd73ca21cd2: No primary result change, +47.6% aim7.time.involuntary_context_switches From: Huang Ying To: "Paul E. McKenney" Cc: LKML , LKP ML , Huang Ying Date: Fri, 12 Jun 2015 10:32:09 +0800 Content-Type: multipart/mixed; boundary="=-LZZeAQ3BITXXwN7j58a+" X-Mailer: Evolution 3.12.11-1 Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-LZZeAQ3BITXXwN7j58a+ Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit FYI, we noticed the below changes on git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master commit cd73ca21cd2bb3711b8d80ba74c90d37ef15fe4d ("rcu: Force wakeup of rcu_gp_kthread at grace-period end") testcase/path_params/tbox_group: aim7/performance-100-fork_test/lkp-a03 3382adbc1bb8c80e cd73ca21cd2bb3711b8d80ba74 ---------------- -------------------------- %stddev %change %stddev \ | \ 205760 ± 2% +47.6% 303763 ± 1% aim7.time.involuntary_context_switches 215 ± 1% +24.7% 268 ± 22% sched_debug.cfs_rq[2]:/.load 205760 ± 2% +47.6% 303763 ± 1% time.involuntary_context_switches 366314 ± 1% +32.8% 486545 ± 3% softirqs.RCU 1493 ± 2% +17.1% 1749 ± 2% slabinfo.kmalloc-128.num_objs 1374 ± 1% +20.5% 1656 ± 2% slabinfo.kmalloc-128.active_objs 4511 ± 0% +7.5% 4850 ± 0% vmstat.system.in 7806 ± 0% +5.9% 8264 ± 1% vmstat.system.cs 335 ± 13% +30.2% 436 ± 12% latency_stats.avg.call_rwsem_down_write_failed.copy_process.do_fork.SyS_clone.system_call_fastpath 1266 ± 1% +18.6% 1501 ± 0% latency_stats.avg.do_wait.SyS_wait4.system_call_fastpath 188 ± 18% +27.9% 241 ± 19% latency_stats.avg.sync_inodes_sb.sync_inodes_one_sb.iterate_supers.sys_sync.system_call_fastpath 955 ± 9% -29.6% 672 ± 17% latency_stats.avg.call_rwsem_down_write_failed.anon_vma_clone.anon_vma_fork.copy_process.do_fork.SyS_clone.system_call_fastpath 211 ± 3% -11.1% 188 ± 4% latency_stats.avg.pipe_wait.pipe_read.__vfs_read.vfs_read.SyS_read.system_call_fastpath 1109 ± 8% -24.0% 842 ± 18% latency_stats.avg.call_rwsem_down_write_failed.anon_vma_fork.copy_process.do_fork.SyS_clone.system_call_fastpath 3 ± 0% -33.3% 2 ± 0% latency_stats.hits.rpc_wait_bit_killable.__rpc_execute.rpc_execute.rpc_run_task.nfs4_call_sync_sequence.[nfsv4]._nfs4_proc_getattr.[nfsv4].nfs4_proc_getattr.[nfsv4].__nfs_revalidate_inode.nfs_getattr.vfs_getattr_nosec.vfs_getattr.vfs_fstat 3 ± 0% -33.3% 2 ± 0% latency_stats.hits.wait_on_page_bit.filemap_fdatawait_range.filemap_fdatawait.filemap_write_and_wait.nfs_wb_all.nfs_getattr.vfs_getattr_nosec.vfs_getattr.vfs_fstat.SYSC_newfstat.SyS_newfstat.system_call_fastpath 1853 ± 1% +8.4% 2009 ± 2% latency_stats.hits.do_wait.SyS_wait4.system_call_fastpath 59 ± 11% +14.6% 68 ± 2% latency_stats.hits.call_rwsem_down_write_failed.cgroup_post_fork.copy_process.do_fork.SyS_clone.system_call_fastpath 28538 ± 10% -18.5% 23253 ± 5% latency_stats.max.call_rwsem_down_write_failed.anon_vma_clone.anon_vma_fork.copy_process.do_fork.SyS_clone.system_call_fastpath 32316 ± 17% -17.6% 26627 ± 6% latency_stats.max.call_rwsem_down_write_failed.anon_vma_fork.copy_process.do_fork.SyS_clone.system_call_fastpath 2347345 ± 2% +28.6% 3019561 ± 3% latency_stats.sum.do_wait.SyS_wait4.system_call_fastpath 3596 ± 10% +20.5% 4333 ± 6% latency_stats.sum.wait_on_page_bit_killable.__lock_page_or_retry.filemap_fault.__do_fault.handle_pte_fault.handle_mm_fault.__do_page_fault.do_page_fault.page_fault 1335990 ± 12% +49.7% 2000350 ± 12% latency_stats.sum.call_rwsem_down_write_failed.copy_process.do_fork.SyS_clone.system_call_fastpath 13375861 ± 15% -29.6% 9420979 ± 27% latency_stats.sum.call_rwsem_down_write_failed.anon_vma_clone.anon_vma_fork.copy_process.do_fork.SyS_clone.system_call_fastpath 1291678 ± 4% -10.6% 1155232 ± 3% latency_stats.sum.pipe_wait.pipe_read.__vfs_read.vfs_read.SyS_read.system_call_fastpath 567 ± 18% +27.8% 725 ± 19% latency_stats.sum.sync_inodes_sb.sync_inodes_one_sb.iterate_supers.sys_sync.system_call_fastpath 1343 ± 5% -29.4% 948 ± 5% latency_stats.sum.wait_on_page_bit.filemap_fdatawait_range.filemap_fdatawait.filemap_write_and_wait.nfs_wb_all.nfs_getattr.vfs_getattr_nosec.vfs_getattr.vfs_fstat.SYSC_newfstat.SyS_newfstat.system_call_fastpath lkp-a03: Atom Memory: 8G softirqs.RCU 520000 ++-----------------------------------------------------------------+ | O | 500000 O+ O O O O O O | 480000 ++ O O O O O O O O O O O | | O O O O | 460000 ++ | 440000 ++ | | | 420000 ++ | 400000 ++ | | *.. | 380000 ++ .. *.. .*.. | 360000 ++ .*.. .*.. .*..*..*.*..*.* *.*..*.*.. .. * *.*.. .*..* *..* * * *.* * | 340000 ++-----------------------------------------------------------------+ aim7.time.involuntary_context_switches 320000 ++-----------------------------------------------------------------+ | O O O O O O O O O | 300000 O+ O O O O O O O O O O | | O O | 280000 ++ O | | | 260000 ++ | | | 240000 ++ | | | 220000 ++ | | .*.*.. .*..*..*. .*.*..*.. .*.. .*..*. .*..*.*.. .*..*. | 200000 *+ *.*..* *. * * *. * *..* | | 180000 ++-----------------------------------------------------------------+ time.involuntary_context_switches 320000 ++-----------------------------------------------------------------+ | O O O O O O O O O | 300000 O+ O O O O O O O O O O | | O O | 280000 ++ O | | | 260000 ++ | | | 240000 ++ | | | 220000 ++ | | .*.*.. .*..*..*. .*.*..*.. .*.. .*..*. .*..*.*.. .*..*. | 200000 *+ *.*..* *. * * *. * *..* | | 180000 ++-----------------------------------------------------------------+ vmstat.system.in 4900 ++---------------------------O---------------------------------------+ O O O O O O O O O O O O O | 4850 ++ O O O O O O O O O | 4800 ++ | | | 4750 ++ | 4700 ++ | | | 4650 ++ | 4600 ++ | | | 4550 ++ .*..*.. .*.. | 4500 *+.*. .*. .*..*.*.. .*.*..*..*.*..*.*..*..* *.*. *. .* | *..*. *. *. *. | 4450 ++-------------------------------------------------------------------+ [*] bisect-good sample [O] bisect-bad sample To reproduce: apt-get install ruby git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/setup-local job.yaml # the job file attached in this email bin/run-local job.yaml 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. Thanks, Ying Huang ------------------------------------- lkp@eclists.intel.com https://eclists.intel.com/sympa/info/lkp Unsubscribe by sending email to sympa@eclists.intel.com with subject "Unsubscribe lkp" --=-LZZeAQ3BITXXwN7j58a+ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename="job.yaml" Content-Transfer-Encoding: 7bit --- LKP_SERVER: inn LKP_CGI_PORT: 80 testcase: aim7 default-monitors: wait: pre-test uptime: iostat: vmstat: numa-numastat: numa-vmstat: numa-meminfo: proc-vmstat: proc-stat: interval: 10 meminfo: slabinfo: interrupts: lock_stat: latency_stats: softirqs: bdi_dev_mapping: diskstats: nfsstat: cpuidle: cpufreq-stats: turbostat: pmeter: sched_debug: interval: 60 default-watchdogs: watch-oom: watchdog: cpufreq_governor: performance commit: 54896f27dd5c7e83c37c85eb1093f14543af2bfa model: Atom memory: 8G ssd_partitions: "/dev/disk/by-id/ata-INTEL_SSDSC2CW240A3_CVCV24050155240CGN-part1" swap_partitions: aim7: load: 100 test: fork_test testbox: lkp-a03 tbox_group: lkp-a03 kconfig: x86_64-rhel enqueue_time: 2015-06-10 10:56:36.930460647 +08:00 user: lkp queue: cyclic compiler: gcc-4.9 head_commit: 54896f27dd5c7e83c37c85eb1093f14543af2bfa base_commit: d4a4f75cd8f29cd9464a5a32e9224a91571d6649 branch: next/master kernel: "/pkg/linux/x86_64-rhel/gcc-4.9/54896f27dd5c7e83c37c85eb1093f14543af2bfa/vmlinuz-4.1.0-rc7-next-20150610" rootfs: debian-x86_64-2015-02-07.cgz result_root: "/result/aim7/performance-100-fork_test/lkp-a03/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/54896f27dd5c7e83c37c85eb1093f14543af2bfa/0" job_file: "/lkp/scheduled/lkp-a03/cyclic_aim7-performance-100-fork_test-x86_64-rhel-CYCLIC_HEAD-54896f27dd5c7e83c37c85eb1093f14543af2bfa-0-20150610-8556-14ms8jq.yaml" dequeue_time: 2015-06-11 06:19:56.066407390 +08:00 nr_cpu: "$(nproc)" max_uptime: 1495.8999999999999 initrd: "/osimage/debian/debian-x86_64-2015-02-07.cgz" bootloader_append: - root=/dev/ram0 - user=lkp - job=/lkp/scheduled/lkp-a03/cyclic_aim7-performance-100-fork_test-x86_64-rhel-CYCLIC_HEAD-54896f27dd5c7e83c37c85eb1093f14543af2bfa-0-20150610-8556-14ms8jq.yaml - ARCH=x86_64 - kconfig=x86_64-rhel - branch=next/master - commit=54896f27dd5c7e83c37c85eb1093f14543af2bfa - BOOT_IMAGE=/pkg/linux/x86_64-rhel/gcc-4.9/54896f27dd5c7e83c37c85eb1093f14543af2bfa/vmlinuz-4.1.0-rc7-next-20150610 - max_uptime=1495 - RESULT_ROOT=/result/aim7/performance-100-fork_test/lkp-a03/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/54896f27dd5c7e83c37c85eb1093f14543af2bfa/0 - LKP_SERVER=inn - |2- earlyprintk=ttyS0,115200 systemd.log_level=err debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal rw lkp_initrd: "/lkp/lkp/lkp-x86_64.cgz" modules_initrd: "/pkg/linux/x86_64-rhel/gcc-4.9/54896f27dd5c7e83c37c85eb1093f14543af2bfa/modules.cgz" bm_initrd: "/osimage/deps/debian-x86_64-2015-02-07.cgz/lkp.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/run-ipconfig.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/turbostat.cgz,/lkp/benchmarks/turbostat.cgz,/lkp/benchmarks/aim7-x86_64.cgz" job_state: finished loadavg: 76.17 66.16 31.35 1/109 3251 start_time: '1433974860' end_time: '1433975225' version: "/lkp/lkp/.src-20150611-021242" --=-LZZeAQ3BITXXwN7j58a+ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename="reproduce" Content-Transfer-Encoding: 7bit echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor --=-LZZeAQ3BITXXwN7j58a+--