From: Mel Gorman <mgorman@suse.de>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
Hugh Dickins <hughd@google.com>,
Tim Chen <tim.c.chen@linux.intel.com>,
Dave@kvack.org, "Chinner <david"@fromorbit.com,
Yuanhan Liu <yuanhan.liu@linux.intel.com>,
Bob Liu <bob.liu@oracle.com>, Jan Kara <jack@suse.cz>,
Rik van Riel <riel@redhat.com>, Mel Gorman <mgorman@suse.de>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>,
Linux-FSDevel <linux-fsdevel@vger.kernel.org>
Subject: [PATCH 0/3] Shrinkers and proportional reclaim
Date: Thu, 22 May 2014 10:09:36 +0100 [thread overview]
Message-ID: <1400749779-24879-1-git-send-email-mgorman@suse.de> (raw)
This series is aimed at regressions noticed during reclaim activity. The
first two patches are shrinker patches that were posted ages ago but never
merged for reasons that are unclear to me. I'm posting them again to see if
there was a reason they were dropped or if they just got lost. Dave? Time?
The last patch adjusts proportional reclaim. Yuanhan Liu, can you retest
the vm scalability test cases on a larger machine? Hugh, does this work
for you on the memcg test cases?
Based on ext4, I get the following results but unfortunately my larger test
machines are all unavailable so this is based on a relatively small machine.
postmark
3.15.0-rc5 3.15.0-rc5
vanilla proportion-v1r4
Ops/sec Transactions 21.00 ( 0.00%) 25.00 ( 19.05%)
Ops/sec FilesCreate 39.00 ( 0.00%) 45.00 ( 15.38%)
Ops/sec CreateTransact 10.00 ( 0.00%) 12.00 ( 20.00%)
Ops/sec FilesDeleted 6202.00 ( 0.00%) 6202.00 ( 0.00%)
Ops/sec DeleteTransact 11.00 ( 0.00%) 12.00 ( 9.09%)
Ops/sec DataRead/MB 25.97 ( 0.00%) 30.02 ( 15.59%)
Ops/sec DataWrite/MB 49.99 ( 0.00%) 57.78 ( 15.58%)
ffsb (mail server simulator)
3.15.0-rc5 3.15.0-rc5
vanilla proportion-v1r4
Ops/sec readall 9402.63 ( 0.00%) 9805.74 ( 4.29%)
Ops/sec create 4695.45 ( 0.00%) 4781.39 ( 1.83%)
Ops/sec delete 173.72 ( 0.00%) 177.23 ( 2.02%)
Ops/sec Transactions 14271.80 ( 0.00%) 14764.37 ( 3.45%)
Ops/sec Read 37.00 ( 0.00%) 38.50 ( 4.05%)
Ops/sec Write 18.20 ( 0.00%) 18.50 ( 1.65%)
dd of a large file
3.15.0-rc5 3.15.0-rc5
vanilla proportion-v1r4
WallTime DownloadTar 75.00 ( 0.00%) 61.00 ( 18.67%)
WallTime DD 423.00 ( 0.00%) 401.00 ( 5.20%)
WallTime Delete 2.00 ( 0.00%) 5.00 (-150.00%)
stutter (times mmap latency during large amounts of IO)
3.15.0-rc5 3.15.0-rc5
vanilla proportion-v1r4
Unit >5ms Delays 80252.0000 ( 0.00%) 81523.0000 ( -1.58%)
Unit Mmap min 8.2118 ( 0.00%) 8.3206 ( -1.33%)
Unit Mmap mean 17.4614 ( 0.00%) 17.2868 ( 1.00%)
Unit Mmap stddev 24.9059 ( 0.00%) 34.6771 (-39.23%)
Unit Mmap max 2811.6433 ( 0.00%) 2645.1398 ( 5.92%)
Unit Mmap 90% 20.5098 ( 0.00%) 18.3105 ( 10.72%)
Unit Mmap 93% 22.9180 ( 0.00%) 20.1751 ( 11.97%)
Unit Mmap 95% 25.2114 ( 0.00%) 22.4988 ( 10.76%)
Unit Mmap 99% 46.1430 ( 0.00%) 43.5952 ( 5.52%)
Unit Ideal Tput 85.2623 ( 0.00%) 78.8906 ( 7.47%)
Unit Tput min 44.0666 ( 0.00%) 43.9609 ( 0.24%)
Unit Tput mean 45.5646 ( 0.00%) 45.2009 ( 0.80%)
Unit Tput stddev 0.9318 ( 0.00%) 1.1084 (-18.95%)
Unit Tput max 46.7375 ( 0.00%) 46.7539 ( -0.04%)
fs/super.c | 16 +++++++++-------
mm/vmscan.c | 36 +++++++++++++++++++++++++-----------
2 files changed, 34 insertions(+), 18 deletions(-)
--
1.8.4.5
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next reply other threads:[~2014-05-22 9:09 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-22 9:09 Mel Gorman [this message]
2014-05-22 9:09 ` [PATCH 1/3] fs/superblock: Unregister sb shrinker before ->kill_sb() Mel Gorman
2014-05-22 15:52 ` Rik van Riel
2014-05-22 9:09 ` [PATCH 2/3] fs/superblock: Avoid locking counting inodes and dentries before reclaiming them Mel Gorman
2014-05-22 15:59 ` Rik van Riel
2014-05-22 9:09 ` [PATCH 3/3] mm: vmscan: Use proportional scanning during direct reclaim and full scan at DEF_PRIORITY Mel Gorman
2014-05-22 16:04 ` Rik van Riel
2014-05-22 16:14 ` [PATCH 0/3] Shrinkers and proportional reclaim Yuanhan Liu
2014-05-22 16:30 ` Mel Gorman
2014-05-23 2:43 ` Yuanhan Liu
2014-05-22 17:22 ` Tim Chen
2014-05-26 21:44 ` Hugh Dickins
2014-05-27 2:37 ` Dave Chinner
2014-05-27 21:17 ` Hugh Dickins
2014-05-27 23:02 ` Konstantin Khlebnikov
2014-05-27 23:19 ` Hugh Dickins
2014-05-28 1:37 ` Dave Chinner
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