* [raid5] cf170f3fa45: +4.8% vmstat.io.bo
@ 2014-06-07 6:53 ` Jet Chen
0 siblings, 0 replies; 2+ messages in thread
From: Jet Chen @ 2014-06-07 6:53 UTC (permalink / raw)
To: lkp
[-- Attachment #1: Type: text/plain, Size: 4179 bytes --]
Hi Eivind,
FYI, we noticed the below changes on
git://neil.brown.name/md for-next
commit cf170f3fa451350e431314e1a0a52014fda4b2d6 ("raid5: avoid release list until last reference of the stripe")
test case: lkp-st02/dd-write/11HDD-RAID5-cfq-xfs-10dd
8b32bf5e37328c0 cf170f3fa451350e431314e1a
--------------- -------------------------
486996 ~ 0% +4.8% 510428 ~ 0% TOTAL vmstat.io.bo
17643 ~ 1% -17.3% 14599 ~ 0% TOTAL vmstat.system.in
11633 ~ 4% -56.7% 5039 ~ 0% TOTAL vmstat.system.cs
109 ~ 1% +6.5% 116 ~ 1% TOTAL iostat.sdb.rrqm/s
109 ~ 2% +5.1% 114 ~ 1% TOTAL iostat.sdc.rrqm/s
110 ~ 2% +5.5% 117 ~ 0% TOTAL iostat.sdj.rrqm/s
12077 ~ 0% +4.8% 12660 ~ 0% TOTAL iostat.sde.wrqm/s
48775 ~ 0% +4.8% 51125 ~ 0% TOTAL iostat.sde.wkB/s
12077 ~ 0% +4.8% 12659 ~ 0% TOTAL iostat.sdb.wrqm/s
12076 ~ 0% +4.8% 12659 ~ 0% TOTAL iostat.sdd.wrqm/s
12077 ~ 0% +4.8% 12660 ~ 0% TOTAL iostat.sdf.wrqm/s
48775 ~ 0% +4.8% 51121 ~ 0% TOTAL iostat.sdb.wkB/s
12078 ~ 0% +4.8% 12659 ~ 0% TOTAL iostat.sdj.wrqm/s
12078 ~ 0% +4.8% 12660 ~ 0% TOTAL iostat.sdi.wrqm/s
12076 ~ 0% +4.8% 12658 ~ 0% TOTAL iostat.sdg.wrqm/s
48774 ~ 0% +4.8% 51122 ~ 0% TOTAL iostat.sdd.wkB/s
48776 ~ 0% +4.8% 51128 ~ 0% TOTAL iostat.sdf.wkB/s
48780 ~ 0% +4.8% 51121 ~ 0% TOTAL iostat.sdj.wkB/s
48779 ~ 0% +4.8% 51128 ~ 0% TOTAL iostat.sdi.wkB/s
48773 ~ 0% +4.8% 51119 ~ 0% TOTAL iostat.sdg.wkB/s
486971 ~ 0% +4.8% 510409 ~ 0% TOTAL iostat.md0.wkB/s
12076 ~ 0% +4.8% 12657 ~ 0% TOTAL iostat.sdc.wrqm/s
12077 ~ 0% +4.8% 12659 ~ 0% TOTAL iostat.sdh.wrqm/s
1910 ~ 0% +4.8% 2001 ~ 0% TOTAL iostat.md0.w/s
110 ~ 2% +6.5% 117 ~ 1% TOTAL iostat.sdk.rrqm/s
12077 ~ 0% +4.8% 12659 ~ 0% TOTAL iostat.sdk.wrqm/s
48772 ~ 0% +4.8% 51115 ~ 0% TOTAL iostat.sdc.wkB/s
48776 ~ 0% +4.8% 51121 ~ 0% TOTAL iostat.sdh.wkB/s
48777 ~ 0% +4.8% 51121 ~ 0% TOTAL iostat.sdk.wkB/s
109 ~ 2% +3.3% 113 ~ 1% TOTAL iostat.sde.rrqm/s
4.28e+09 ~ 0% -4.1% 4.104e+09 ~ 0% TOTAL perf-stat.cache-misses
8.654e+10 ~ 0% +4.7% 9.058e+10 ~ 0% TOTAL perf-stat.L1-dcache-store-misses
3.549e+09 ~ 1% +3.7% 3.682e+09 ~ 0% TOTAL perf-stat.L1-dcache-prefetches
6.764e+11 ~ 0% +3.7% 7.011e+11 ~ 0% TOTAL perf-stat.dTLB-stores
6.759e+11 ~ 0% +3.7% 7.011e+11 ~ 0% TOTAL perf-stat.L1-dcache-stores
4.731e+10 ~ 0% +3.6% 4.903e+10 ~ 0% TOTAL perf-stat.L1-dcache-load-misses
3.017e+12 ~ 0% +3.5% 3.121e+12 ~ 0% TOTAL perf-stat.instructions
1.118e+12 ~ 0% +3.3% 1.156e+12 ~ 0% TOTAL perf-stat.dTLB-loads
1.117e+12 ~ 0% +3.2% 1.152e+12 ~ 0% TOTAL perf-stat.L1-dcache-loads
3.022e+12 ~ 0% +3.2% 3.119e+12 ~ 0% TOTAL perf-stat.iTLB-loads
5.613e+11 ~ 0% +3.2% 5.794e+11 ~ 0% TOTAL perf-stat.branch-instructions
5.62e+11 ~ 0% +3.1% 5.793e+11 ~ 0% TOTAL perf-stat.branch-loads
1.343e+09 ~ 0% +2.6% 1.378e+09 ~ 0% TOTAL perf-stat.LLC-store-misses
2.073e+10 ~ 0% +2.9% 2.133e+10 ~ 1% TOTAL perf-stat.LLC-loads
4.854e+10 ~ 0% +1.6% 4.931e+10 ~ 0% TOTAL perf-stat.cache-references
1.167e+10 ~ 0% +1.4% 1.183e+10 ~ 0% TOTAL perf-stat.L1-icache-load-misses
7068624 ~ 4% -56.4% 3078966 ~ 0% TOTAL perf-stat.context-switches
2.214e+09 ~ 1% -7.8% 2.041e+09 ~ 1% TOTAL perf-stat.LLC-load-misses
131433 ~ 0% -18.9% 106597 ~ 1% TOTAL perf-stat.cpu-migrations
Legend:
~XX% - stddev percent
[+-]XX% - change percent
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,
Jet
[-- Attachment #2: reproduce.ksh --]
[-- Type: text/plain, Size: 1110 bytes --]
mdadm -q --create /dev/md0 --chunk=256 --level=raid5 --raid-devices=11 --force --assume-clean /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 /dev/sdj1 /dev/sdk1 /dev/sdl1
echo 1 > /sys/kernel/debug/tracing/events/writeback/balance_dirty_pages/enable
echo 1 > /sys/kernel/debug/tracing/events/writeback/bdi_dirty_ratelimit/enable
echo 1 > /sys/kernel/debug/tracing/events/writeback/global_dirty_state/enable
echo 1 > /sys/kernel/debug/tracing/events/writeback/writeback_single_inode/enable
mkfs -t xfs /dev/md0
mount -t xfs -o nobarrier,inode64 /dev/md0 /fs/md0
dd if=/dev/zero of=/fs/md0/zero-1 status=none &
dd if=/dev/zero of=/fs/md0/zero-2 status=none &
dd if=/dev/zero of=/fs/md0/zero-3 status=none &
dd if=/dev/zero of=/fs/md0/zero-4 status=none &
dd if=/dev/zero of=/fs/md0/zero-5 status=none &
dd if=/dev/zero of=/fs/md0/zero-6 status=none &
dd if=/dev/zero of=/fs/md0/zero-7 status=none &
dd if=/dev/zero of=/fs/md0/zero-8 status=none &
dd if=/dev/zero of=/fs/md0/zero-9 status=none &
dd if=/dev/zero of=/fs/md0/zero-10 status=none &
sleep 600
killall -9 dd
^ permalink raw reply [flat|nested] 2+ messages in thread
* [raid5] cf170f3fa45: +4.8% vmstat.io.bo
@ 2014-06-07 6:53 ` Jet Chen
0 siblings, 0 replies; 2+ messages in thread
From: Jet Chen @ 2014-06-07 6:53 UTC (permalink / raw)
To: Eivind Sarto; +Cc: NeilBrown, LKML, lkp, Fengguang Wu
[-- Attachment #1: Type: text/plain, Size: 4105 bytes --]
Hi Eivind,
FYI, we noticed the below changes on
git://neil.brown.name/md for-next
commit cf170f3fa451350e431314e1a0a52014fda4b2d6 ("raid5: avoid release list until last reference of the stripe")
test case: lkp-st02/dd-write/11HDD-RAID5-cfq-xfs-10dd
8b32bf5e37328c0 cf170f3fa451350e431314e1a
--------------- -------------------------
486996 ~ 0% +4.8% 510428 ~ 0% TOTAL vmstat.io.bo
17643 ~ 1% -17.3% 14599 ~ 0% TOTAL vmstat.system.in
11633 ~ 4% -56.7% 5039 ~ 0% TOTAL vmstat.system.cs
109 ~ 1% +6.5% 116 ~ 1% TOTAL iostat.sdb.rrqm/s
109 ~ 2% +5.1% 114 ~ 1% TOTAL iostat.sdc.rrqm/s
110 ~ 2% +5.5% 117 ~ 0% TOTAL iostat.sdj.rrqm/s
12077 ~ 0% +4.8% 12660 ~ 0% TOTAL iostat.sde.wrqm/s
48775 ~ 0% +4.8% 51125 ~ 0% TOTAL iostat.sde.wkB/s
12077 ~ 0% +4.8% 12659 ~ 0% TOTAL iostat.sdb.wrqm/s
12076 ~ 0% +4.8% 12659 ~ 0% TOTAL iostat.sdd.wrqm/s
12077 ~ 0% +4.8% 12660 ~ 0% TOTAL iostat.sdf.wrqm/s
48775 ~ 0% +4.8% 51121 ~ 0% TOTAL iostat.sdb.wkB/s
12078 ~ 0% +4.8% 12659 ~ 0% TOTAL iostat.sdj.wrqm/s
12078 ~ 0% +4.8% 12660 ~ 0% TOTAL iostat.sdi.wrqm/s
12076 ~ 0% +4.8% 12658 ~ 0% TOTAL iostat.sdg.wrqm/s
48774 ~ 0% +4.8% 51122 ~ 0% TOTAL iostat.sdd.wkB/s
48776 ~ 0% +4.8% 51128 ~ 0% TOTAL iostat.sdf.wkB/s
48780 ~ 0% +4.8% 51121 ~ 0% TOTAL iostat.sdj.wkB/s
48779 ~ 0% +4.8% 51128 ~ 0% TOTAL iostat.sdi.wkB/s
48773 ~ 0% +4.8% 51119 ~ 0% TOTAL iostat.sdg.wkB/s
486971 ~ 0% +4.8% 510409 ~ 0% TOTAL iostat.md0.wkB/s
12076 ~ 0% +4.8% 12657 ~ 0% TOTAL iostat.sdc.wrqm/s
12077 ~ 0% +4.8% 12659 ~ 0% TOTAL iostat.sdh.wrqm/s
1910 ~ 0% +4.8% 2001 ~ 0% TOTAL iostat.md0.w/s
110 ~ 2% +6.5% 117 ~ 1% TOTAL iostat.sdk.rrqm/s
12077 ~ 0% +4.8% 12659 ~ 0% TOTAL iostat.sdk.wrqm/s
48772 ~ 0% +4.8% 51115 ~ 0% TOTAL iostat.sdc.wkB/s
48776 ~ 0% +4.8% 51121 ~ 0% TOTAL iostat.sdh.wkB/s
48777 ~ 0% +4.8% 51121 ~ 0% TOTAL iostat.sdk.wkB/s
109 ~ 2% +3.3% 113 ~ 1% TOTAL iostat.sde.rrqm/s
4.28e+09 ~ 0% -4.1% 4.104e+09 ~ 0% TOTAL perf-stat.cache-misses
8.654e+10 ~ 0% +4.7% 9.058e+10 ~ 0% TOTAL perf-stat.L1-dcache-store-misses
3.549e+09 ~ 1% +3.7% 3.682e+09 ~ 0% TOTAL perf-stat.L1-dcache-prefetches
6.764e+11 ~ 0% +3.7% 7.011e+11 ~ 0% TOTAL perf-stat.dTLB-stores
6.759e+11 ~ 0% +3.7% 7.011e+11 ~ 0% TOTAL perf-stat.L1-dcache-stores
4.731e+10 ~ 0% +3.6% 4.903e+10 ~ 0% TOTAL perf-stat.L1-dcache-load-misses
3.017e+12 ~ 0% +3.5% 3.121e+12 ~ 0% TOTAL perf-stat.instructions
1.118e+12 ~ 0% +3.3% 1.156e+12 ~ 0% TOTAL perf-stat.dTLB-loads
1.117e+12 ~ 0% +3.2% 1.152e+12 ~ 0% TOTAL perf-stat.L1-dcache-loads
3.022e+12 ~ 0% +3.2% 3.119e+12 ~ 0% TOTAL perf-stat.iTLB-loads
5.613e+11 ~ 0% +3.2% 5.794e+11 ~ 0% TOTAL perf-stat.branch-instructions
5.62e+11 ~ 0% +3.1% 5.793e+11 ~ 0% TOTAL perf-stat.branch-loads
1.343e+09 ~ 0% +2.6% 1.378e+09 ~ 0% TOTAL perf-stat.LLC-store-misses
2.073e+10 ~ 0% +2.9% 2.133e+10 ~ 1% TOTAL perf-stat.LLC-loads
4.854e+10 ~ 0% +1.6% 4.931e+10 ~ 0% TOTAL perf-stat.cache-references
1.167e+10 ~ 0% +1.4% 1.183e+10 ~ 0% TOTAL perf-stat.L1-icache-load-misses
7068624 ~ 4% -56.4% 3078966 ~ 0% TOTAL perf-stat.context-switches
2.214e+09 ~ 1% -7.8% 2.041e+09 ~ 1% TOTAL perf-stat.LLC-load-misses
131433 ~ 0% -18.9% 106597 ~ 1% TOTAL perf-stat.cpu-migrations
Legend:
~XX% - stddev percent
[+-]XX% - change percent
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,
Jet
[-- Attachment #2: reproduce --]
[-- Type: text/plain, Size: 1110 bytes --]
mdadm -q --create /dev/md0 --chunk=256 --level=raid5 --raid-devices=11 --force --assume-clean /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 /dev/sdj1 /dev/sdk1 /dev/sdl1
echo 1 > /sys/kernel/debug/tracing/events/writeback/balance_dirty_pages/enable
echo 1 > /sys/kernel/debug/tracing/events/writeback/bdi_dirty_ratelimit/enable
echo 1 > /sys/kernel/debug/tracing/events/writeback/global_dirty_state/enable
echo 1 > /sys/kernel/debug/tracing/events/writeback/writeback_single_inode/enable
mkfs -t xfs /dev/md0
mount -t xfs -o nobarrier,inode64 /dev/md0 /fs/md0
dd if=/dev/zero of=/fs/md0/zero-1 status=none &
dd if=/dev/zero of=/fs/md0/zero-2 status=none &
dd if=/dev/zero of=/fs/md0/zero-3 status=none &
dd if=/dev/zero of=/fs/md0/zero-4 status=none &
dd if=/dev/zero of=/fs/md0/zero-5 status=none &
dd if=/dev/zero of=/fs/md0/zero-6 status=none &
dd if=/dev/zero of=/fs/md0/zero-7 status=none &
dd if=/dev/zero of=/fs/md0/zero-8 status=none &
dd if=/dev/zero of=/fs/md0/zero-9 status=none &
dd if=/dev/zero of=/fs/md0/zero-10 status=none &
sleep 600
killall -9 dd
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2014-06-07 6:53 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-06-07 6:53 [raid5] cf170f3fa45: +4.8% vmstat.io.bo Jet Chen
2014-06-07 6:53 ` Jet Chen
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.