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Date: Tue, 4 Mar 2014 09:58:45 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Alex Shi <alex.shi@...aro.org>
Cc: LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [sched/balance] 815296e0446: -71.2% cpuidle.C3-SNB.time
Alex,
FYI, we noticed the below changes on commit
https://github.com/alexshi/power-scheduling.git single-balance
815296e0446ff6c405ef647082024ce3d8183e10 ("sched: unify imbalance bias for target group")
test case: lkp-snb01/micro/aim7/compute
bf0607d57b0b3ef 815296e0446ff6c405ef64708
--------------- -------------------------
465050 ~ 9% -71.2% 134141 ~16% cpuidle.C3-SNB.time
10109 ~33% -63.0% 3743 ~25% sched_debug.cfs_rq[20]:/.min_vruntime
7163 ~31% -63.2% 2638 ~22% sched_debug.cfs_rq[20]:/.MIN_vruntime
7166 ~31% -63.1% 2641 ~22% sched_debug.cfs_rq[20]:/.max_vruntime
1722 ~10% -34.7% 1124 ~27% sched_debug.cfs_rq[13]:/.MIN_vruntime
1725 ~10% -34.6% 1127 ~27% sched_debug.cfs_rq[13]:/.max_vruntime
7774 ~18% +47.0% 11430 ~22% sched_debug.cfs_rq[9]:/.runnable_load_avg
8117 ~18% +47.2% 11946 ~20% sched_debug.cfs_rq[9]:/.load
8106 ~18% +47.4% 11946 ~20% sched_debug.cpu#9.load
7787 ~18% +47.1% 11457 ~22% sched_debug.cpu#9.cpu_load
7319 ~23% +42.4% 10420 ~21% sched_debug.cpu#30.cpu_load
7287 ~23% +42.8% 10404 ~21% sched_debug.cfs_rq[30]:/.runnable_load_avg
7757 ~19% +58.1% 12268 ~31% sched_debug.cfs_rq[26]:/.tg_load_contrib
7821 ~21% +52.2% 11904 ~24% sched_debug.cpu#11.cpu_load
7956 ~18% +49.0% 11856 ~24% sched_debug.cfs_rq[11]:/.runnable_load_avg
1722 ~16% -42.6% 989 ~24% sched_debug.cfs_rq[6]:/.MIN_vruntime
1726 ~16% -42.5% 991 ~24% sched_debug.cfs_rq[6]:/.max_vruntime
8357 ~15% +44.4% 12068 ~19% sched_debug.cfs_rq[9]:/.tg_load_contrib
8513 ~15% +48.6% 12648 ~22% sched_debug.cfs_rq[11]:/.tg_load_contrib
2050 ~19% -34.7% 1339 ~24% sched_debug.cfs_rq[6]:/.min_vruntime
7278 ~16% +46.6% 10667 ~21% sched_debug.cpu#25.cpu_load
7 ~20% +48.6% 11 ~19% sched_debug.cpu#9.nr_running
7 ~20% +48.6% 11 ~19% sched_debug.cfs_rq[9]:/.nr_running
7285 ~16% +46.0% 10639 ~21% sched_debug.cfs_rq[25]:/.runnable_load_avg
8495 ~18% +35.5% 11513 ~19% sched_debug.cpu#14.load
8489 ~18% +35.6% 11513 ~19% sched_debug.cfs_rq[14]:/.load
7985 ~24% +37.9% 11015 ~19% sched_debug.cpu#12.cpu_load
7983 ~25% +38.3% 11043 ~20% sched_debug.cfs_rq[12]:/.runnable_load_avg
7123 ~15% +52.4% 10853 ~22% sched_debug.cfs_rq[24]:/.load
1671 ~10% -36.6% 1059 ~24% sched_debug.cfs_rq[7]:/.MIN_vruntime
7128 ~15% +52.2% 10853 ~22% sched_debug.cpu#24.load
1674 ~10% -36.6% 1062 ~24% sched_debug.cfs_rq[7]:/.max_vruntime
7997 ~13% +48.2% 11852 ~20% sched_debug.cfs_rq[8]:/.tg_load_contrib
2039 ~15% -31.0% 1408 ~19% sched_debug.cfs_rq[7]:/.min_vruntime
8556 ~22% +38.2% 11821 ~18% sched_debug.cfs_rq[12]:/.tg_load_contrib
952 ~12% +59.6% 1520 ~ 6% cpuidle.C1E-SNB.usage
7553 ~14% +49.0% 11253 ~21% sched_debug.cfs_rq[24]:/.tg_load_contrib
2013 ~11% -27.5% 1459 ~17% sched_debug.cfs_rq[13]:/.min_vruntime
431 ~21% +68.8% 727 ~26% sched_debug.cfs_rq[6]:/.blocked_load_avg
8512 ~10% +31.5% 11197 ~14% sched_debug.cfs_rq[16]:/.tg_load_contrib
9269 ~18% +21.2% 11234 ~12% sched_debug.cfs_rq[6]:/.tg_load_contrib
7816 ~ 9% +29.7% 10139 ~15% sched_debug.cpu#22.cpu_load
8023 ~ 5% +38.9% 11146 ~12% sched_debug.cfs_rq[7]:/.runnable_load_avg
8054 ~ 6% +38.5% 11156 ~11% sched_debug.cpu#7.cpu_load
2255 ~35% -44.4% 1253 ~28% sched_debug.cfs_rq[3]:/.MIN_vruntime
3.46 ~ 9% -24.4% 2.61 ~ 9% sched_debug.cfs_rq[6]:/.spread
2258 ~34% -44.4% 1256 ~28% sched_debug.cfs_rq[3]:/.max_vruntime
7752 ~ 9% +30.2% 10091 ~15% sched_debug.cfs_rq[22]:/.runnable_load_avg
8579 ~ 6% +37.4% 11791 ~11% sched_debug.cfs_rq[7]:/.tg_load_contrib
9337 ~18% +17.7% 10992 ~13% sched_debug.cpu#6.load
9337 ~18% +17.7% 10992 ~13% sched_debug.cfs_rq[6]:/.load
8499 ~ 6% +37.1% 11654 ~10% sched_debug.cpu#7.load
8499 ~ 6% +37.1% 11654 ~10% sched_debug.cfs_rq[7]:/.load
7 ~ 5% +38.5% 10 ~10% sched_debug.cpu#7.nr_running
7 ~ 5% +38.5% 10 ~10% sched_debug.cfs_rq[7]:/.nr_running
45 ~23% -38.4% 28 ~33% sched_debug.cpu#13.nr_uninterruptible
122137 ~10% +15.0% 140407 ~11% numa-vmstat.node1.nr_active_anon
121019 ~10% +14.8% 138944 ~11% numa-vmstat.node1.nr_anon_pages
545505 ~ 9% +14.4% 623974 ~11% numa-meminfo.node1.Active
4788 ~ 6% +24.6% 5967 ~12% sched_debug.cpu#19.nr_switches
1183156 ~10% +7.8% 1276020 ~10% numa-meminfo.node1.MemUsed
8845 ~ 8% +27.6% 11285 ~ 7% sched_debug.cfs_rq[23]:/.tg_load_contrib
8338 ~ 8% +43.9% 11997 ~20% sched_debug.cpu#23.load
8322 ~ 8% +44.2% 11997 ~20% sched_debug.cfs_rq[23]:/.load
7 ~10% +51.4% 11 ~22% sched_debug.cfs_rq[23]:/.nr_running
7 ~10% +51.4% 11 ~22% sched_debug.cpu#23.nr_running
5982 ~11% -18.4% 4878 ~ 5% sched_debug.cpu#20.nr_switches
5145 ~ 4% -15.7% 4335 ~ 7% sched_debug.cpu#13.nr_switches
10354 ~15% +24.9% 12936 ~ 9% sched_debug.cfs_rq[25]:/.tg_load_contrib
3.20 ~ 4% -15.2% 2.72 ~ 3% sched_debug.cfs_rq[23]:/.spread
6547 ~ 7% -15.9% 5509 ~ 5% slabinfo.shmem_inode_cache.num_objs
250366 ~ 3% +12.9% 282665 ~ 4% proc-vmstat.nr_active_anon
248251 ~ 3% +12.6% 279447 ~ 4% proc-vmstat.nr_anon_pages
1011621 ~ 2% +11.6% 1128719 ~ 4% meminfo.Active(anon)
6506 ~ 7% -15.4% 5507 ~ 5% slabinfo.shmem_inode_cache.active_objs
1003281 ~ 2% +11.2% 1116144 ~ 3% meminfo.AnonPages
4011 ~ 4% +10.3% 4424 ~ 6% sched_debug.cpu#7.nr_switches
1132480 ~ 2% +10.3% 1249495 ~ 3% meminfo.Active
6293 ~ 4% +8.9% 6852 ~ 5% slabinfo.kmalloc-128.active_objs
3.29 ~ 6% -8.4% 3.01 ~ 7% sched_debug.cfs_rq[27]:/.spread
4272 ~ 2% -8.0% 3928 ~ 3% sched_debug.cpu#8.curr->pid
6421 ~ 3% +7.3% 6891 ~ 4% slabinfo.kmalloc-128.num_objs
14672 ~ 1% +19.0% 17462 ~ 3% time.voluntary_context_switches
6073 ~ 2% +5.2% 6387 ~ 3% vmstat.system.cs
22.49 ~ 0% +0.7% 22.65 ~ 0% boottime.dhcp
time.voluntary_context_switches
22000 ++-----------------------------------------------------------------+
O O |
21000 ++ O O O O |
20000 ++ O O O O O |
| O O O O |
19000 ++ O O |
| O |
18000 ++ O O
| O O |
17000 ++ O |
16000 ++ O |
| |
15000 ++ *.. *.. |
*..*..*..*..*..*. .. *..*..*.. .. *..*..*..* |
14000 ++---------------*--------------*----------------------------------+
Thanks,
Fengguang
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