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Message-ID: <20160513123100.GB567@swordfish>
Date: Fri, 13 May 2016 21:31:00 +0900
From: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To: kernel test robot <xiaolong.ye@...el.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
Minchan Kim <minchan@...nel.org>,
LKML <linux-kernel@...r.kernel.org>, lkp@...org,
Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [lkp] [zsmalloc] 44f43e99fe: will-it-scale.scalability +15.0%
improvement
Hello,
On (05/13/16 09:40), kernel test robot wrote:
> FYI, we noticed will-it-scale.scalability +15.0% improvement due to commit:
which is a good thing, isn't it? :)
thanks!
-ss
> commit 44f43e99fe70833058482d183e99fdfd11220996 ("zsmalloc: fix zs_can_compact() integer overflow")
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>
> in testcase - will-it-scale
> on test machine - xps: 8 threads Nehalem with 4G memory
>
>
> =========================================================================================
> compiler/cpufreq_governor/kconfig/rootfs/tbox_group/test/testcase:
> gcc-4.9/performance/x86_64-rhel/debian-x86_64-2015-02-07.cgz/xps/write1/will-it-scale
>
> commit:
> 1e92a61c4c7ed85c1bec037c046e92d6dc762f32
> 44f43e99fe70833058482d183e99fdfd11220996
>
> 1e92a61c4c7ed85c 44f43e99fe70833058482d183e
> ---------------- --------------------------
> fail:runs %reproduction fail:runs
> | | |
> %stddev %change %stddev
> \ | \
> 1269910 ± 0% -7.7% 1172297 ± 0% will-it-scale.per_process_ops
> 1219902 ± 0% -7.7% 1125807 ± 0% will-it-scale.per_thread_ops
> 0.22 ± 2% +15.0% 0.25 ± 0% will-it-scale.scalability
> 962.50 ± 2% -4.4% 920.00 ± 2% vmstat.system.cs
> 56.78 ± 7% +99.5% 113.28 ± 53% sched_debug.cpu.load.stddev
> 0.41 ± 5% +13.7% 0.47 ± 5% sched_debug.cpu.nr_running.stddev
> 5576 ± 3% +19.1% 6642 ± 4% slabinfo.anon_vma_chain.active_objs
> 5681 ± 3% +17.9% 6696 ± 4% slabinfo.anon_vma_chain.num_objs
> 1610 ± 15% +22.5% 1973 ± 4% slabinfo.cred_jar.active_objs
>
> =========================================================================================
> compiler/cpufreq_governor/kconfig/rootfs/tbox_group/test/testcase:
> gcc-4.9/performance/x86_64-rhel/debian-x86_64-2015-02-07.cgz/xps/writeseek2/will-it-scale
>
> commit:
> 1e92a61c4c7ed85c1bec037c046e92d6dc762f32
> 44f43e99fe70833058482d183e99fdfd11220996
>
> 1e92a61c4c7ed85c 44f43e99fe70833058482d183e
> ---------------- --------------------------
> fail:runs %reproduction fail:runs
> | | |
> :4 25% 1:4 kmsg.do_IRQ:#No_irq_handler_for_vector
> %stddev %change %stddev
> \ | \
> 768011 ± 0% -8.7% 701413 ± 0% will-it-scale.per_process_ops
> 660490 ± 0% -7.9% 608530 ± 0% will-it-scale.per_thread_ops
> 0.06 ± 2% +13.8% 0.07 ± 0% will-it-scale.scalability
> 702840 ± 11% +56.7% 1101645 ± 11% cpuidle.C1E-NHM.time
> 23738 ± 4% -7.5% 21947 ± 1% softirqs.RCU
> 173.21 ± 8% +13.9% 197.33 ± 3% sched_debug.cfs_rq:/.load.max
> 56.64 ± 8% +24.1% 70.31 ± 3% sched_debug.cfs_rq:/.load.stddev
> 36.58 ± 5% -12.2% 32.12 ± 4% sched_debug.cpu.cpu_load[3].min
> 173.21 ± 8% +13.9% 197.33 ± 3% sched_debug.cpu.load.max
> 56.65 ± 8% +24.1% 70.32 ± 3% sched_debug.cpu.load.stddev
>
>
>
> will-it-scale.scalability
>
> 0.27 ++-------------------------------------------------------------------+
> | O |
> 0.26 ++ O O |
> O O O O O O O O O O |
> 0.25 ++ O O |
> | |
> 0.24 ++ |
> | |
> 0.23 ++ |
> | *...*..|
> 0.22 ++.*... .*.. *...*.. ..*.. ..*.. ..*.. ..*.. + *
> *. *. . .. *. *. .*. *. + |
> 0.21 ++ * *. *...* |
> | |
> 0.2 ++-------------------------------------------------------------------+
>
>
> will-it-scale.per_process_ops
>
> 1.3e+06 ++---------------------------------------------------------------+
> | |
> 1.28e+06 ++ ..*.. .*
> 1.26e+06 *+.*...*..*..*..*. *..*..*...*..*..*..*...*..*..*..*...*..*. |
> | |
> 1.24e+06 ++ |
> | |
> 1.22e+06 ++ |
> | |
> 1.2e+06 ++ |
> 1.18e+06 ++ |
> | O O O O O O |
> 1.16e+06 ++ O O O O |
> O O O O |
> 1.14e+06 ++-O-------------------------------------------------------------+
>
>
> will-it-scale.per_thread_ops
>
> 1.24e+06 ++---------------------------------------------------------------+
> | .*
> 1.22e+06 ++ .*..*.. ..*.. ..*..*.. .*..*..*...*..*. |
> *..*...*. *. *..*..*. *..*...*. |
> 1.2e+06 ++ |
> | |
> 1.18e+06 ++ |
> | |
> 1.16e+06 ++ |
> | |
> 1.14e+06 ++ |
> | O O O O |
> 1.12e+06 ++ O O O O O O O |
> O O O O |
> 1.1e+06 ++---------------------------------------------------------------+
>
>
> [*] bisect-good sample
> [O] bisect-bad sample
>
> To reproduce:
>
> git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
> cd lkp-tests
> bin/lkp install job.yaml # job file is attached in this email
> bin/lkp run 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,
> Xiaolong
> ---
> LKP_SERVER: inn
> LKP_CGI_PORT: 80
> LKP_CIFS_PORT: 139
> testcase: will-it-scale
> default-monitors:
> wait: activate-monitor
> kmsg:
> uptime:
> iostat:
> heartbeat:
> 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
> cpufreq_governor: performance
> NFS_HANG_DF_TIMEOUT: 200
> NFS_HANG_CHECK_INTERVAL: 900
> default-watchdogs:
> oom-killer:
> watchdog:
> nfs-hang:
> commit: 44f43e99fe70833058482d183e99fdfd11220996
> model: Nehalem
> nr_cpu: 8
> memory: 4G
> hdd_partitions:
> swap_partitions: "/dev/disk/by-id/ata-HDT722516DLA380_VDK91GTE0WMZBR-part2"
> rootfs_partition: "/dev/disk/by-id/ata-HDT722516DLA380_VDK91GTE0WMZBR-part1"
> netconsole_port: 6666
> category: benchmark
> perf-profile:
> freq: 800
> will-it-scale:
> test: write1
> queue: bisect
> testbox: xps
> tbox_group: xps
> kconfig: x86_64-rhel
> enqueue_time: 2016-05-13 00:36:18.600897786 +08:00
> compiler: gcc-4.9
> rootfs: debian-x86_64-2015-02-07.cgz
> id: 1ac9e260f98b0f5fa5cc2ddba9adbebc94694b67
> user: lkp
> head_commit: 2d0bd9534c8ddaebee64e1b4b7d621915f65e994
> base_commit: 1b46bac6275506db73592aa8b9bd1d67c79b95dc
> branch: linus/master
> result_root: "/result/will-it-scale/performance-write1/xps/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/44f43e99fe70833058482d183e99fdfd11220996/0"
> job_file: "/lkp/scheduled/xps/bisect_will-it-scale-performance-write1-debian-x86_64-2015-02-07.cgz-x86_64-rhel-44f43e99fe70833058482d183e99fdfd11220996-20160513-19998-10wxcv0-0.yaml"
> max_uptime: 1500
> initrd: "/osimage/debian/debian-x86_64-2015-02-07.cgz"
> bootloader_append:
> - root=/dev/ram0
> - user=lkp
> - job=/lkp/scheduled/xps/bisect_will-it-scale-performance-write1-debian-x86_64-2015-02-07.cgz-x86_64-rhel-44f43e99fe70833058482d183e99fdfd11220996-20160513-19998-10wxcv0-0.yaml
> - ARCH=x86_64
> - kconfig=x86_64-rhel
> - branch=linus/master
> - commit=44f43e99fe70833058482d183e99fdfd11220996
> - BOOT_IMAGE=/pkg/linux/x86_64-rhel/gcc-4.9/44f43e99fe70833058482d183e99fdfd11220996/vmlinuz-4.6.0-rc7-00002-g44f43e9
> - max_uptime=1500
> - RESULT_ROOT=/result/will-it-scale/performance-write1/xps/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/44f43e99fe70833058482d183e99fdfd11220996/0
> - 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-4.9/44f43e99fe70833058482d183e99fdfd11220996/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/perf-profile-x86_64.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/will-it-scale.cgz,/lkp/benchmarks/will-it-scale.cgz,/lkp/benchmarks/will-it-scale-x86_64.cgz"
> linux_headers_initrd: "/pkg/linux/x86_64-rhel/gcc-4.9/44f43e99fe70833058482d183e99fdfd11220996/linux-headers.cgz"
> repeat_to: 2
> kernel: "/pkg/linux/x86_64-rhel/gcc-4.9/44f43e99fe70833058482d183e99fdfd11220996/vmlinuz-4.6.0-rc7-00002-g44f43e9"
> dequeue_time: 2016-05-13 00:45:48.766806189 +08:00
> job_state: finished
> loadavg: 7.24 3.46 1.38 1/166 4778
> start_time: '1463071573'
> end_time: '1463071878'
> version: "/lkp/lkp/.src-20160513-001235"
> 2016-05-13 00:46:12 echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
> 2016-05-13 00:46:12 echo performance > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
> 2016-05-13 00:46:12 echo performance > /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor
> 2016-05-13 00:46:12 echo performance > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor
> 2016-05-13 00:46:12 echo performance > /sys/devices/system/cpu/cpu4/cpufreq/scaling_governor
> 2016-05-13 00:46:12 echo performance > /sys/devices/system/cpu/cpu5/cpufreq/scaling_governor
> 2016-05-13 00:46:12 echo performance > /sys/devices/system/cpu/cpu6/cpufreq/scaling_governor
> 2016-05-13 00:46:12 echo performance > /sys/devices/system/cpu/cpu7/cpufreq/scaling_governor
> 2016-05-13 00:46:13 ./runtest.py write1 32 both 1 4 6 8
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