From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: Rik van Riel <riel@redhat.com>,
Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: kosaki.motohiro@jp.fujitsu.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: rvr split LRU minor regression ?
Date: Wed, 16 Jan 2008 15:17:36 +0900 [thread overview]
Message-ID: <20080116144826.11C0.KOSAKI.MOTOHIRO@jp.fujitsu.com> (raw)
In-Reply-To: <20080108205939.323955454@redhat.com>
Hi Rik
I tested new hackbench on rvr split LRU patch.
new hackbench URL is
http://people.redhat.com/mingo/cfs-scheduler/tools/hackbench.c
method of test
(1) $ ./hackbench 150 process 1000
(2) # sync; echo 3 > /proc/sys/vm/drop_caches
$ dd if=tmp10G of=/dev/null
$ ./hackbench 150 process 1000
test machine:
CPU: x86_64 1.86GHz x2
memory: 6GB
result:
2.6.24-rc6-mm1 +rvr-split-lru ratio
(small is faster)
-------------------------------------------------------------------
(1) 364.981 359.386 98.47%
(2) 364.461 387.471 106.31%
more detail:
1. /usr/bin/time command output
vanilla 2.6.24-rc6-mm1
33.74user 703.10system 6:09.56elapsed 199%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+372467minor)pagefaults 0swaps
2.6.24-rc6-mm1 + rvr-split-lru
36.22user 731.30system 6:35.16elapsed 194%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (804major+389524minor)pagefaults 0swaps
It seems increase page fault.
2.
after test (2), cat /proc/meminfo
vanilla 2.6.24-rc6-mm1
MemTotal: 5931808 kB
MemFree: 1751632 kB
Buffers: 4360 kB
Cached: 3930020 kB
SwapCached: 0 kB
Active: 46396 kB
Inactive: 3924108 kB
SwapTotal: 20972848 kB
SwapFree: 20972720 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 36140 kB
Mapped: 10104 kB
Slab: 160020 kB
SReclaimable: 3460 kB
SUnreclaim: 156560 kB
PageTables: 3712 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
CommitLimit: 23938752 kB
Committed_AS: 78940 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 57220 kB
VmallocChunk: 34359680999 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
2.6.24-rc6-mm1 + rvr-split-lru
MemTotal: 5931356 kB
MemFree: 1771800 kB
Buffers: 2776 kB
Cached: 3914800 kB
SwapCached: 7940 kB
Active(anon): 21868 kB
Inactive(anon): 6560 kB
Active(file): 1722888 kB
Inactive(file): 2192128 kB
Noreclaim: 3472 kB
Mlocked: 3724 kB
SwapTotal: 20972848 kB
SwapFree: 20935032 kB
Dirty: 8 kB
Writeback: 0 kB
AnonPages: 23912 kB
Mapped: 9500 kB
Slab: 162188 kB
SReclaimable: 5544 kB
SUnreclaim: 156644 kB
PageTables: 4444 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
CommitLimit: 23938524 kB
Committed_AS: 106816 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 57220 kB
VmallocChunk: 34359680999 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
It seems used once memory incorrect activation increased.
What do you think it?
- kosaki
prev parent reply other threads:[~2008-01-16 6:18 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-08 20:59 [patch 00/19] VM pageout scalability improvements Rik van Riel
2008-01-08 20:59 ` [patch 01/19] move isolate_lru_page() to vmscan.c Rik van Riel
2008-01-08 22:03 ` Christoph Lameter
2008-01-08 20:59 ` [patch 02/19] free swap space on swap-in/activation Rik van Riel
2008-01-08 22:10 ` Christoph Lameter
2008-01-08 20:59 ` [patch 03/19] define page_file_cache() function Rik van Riel
2008-01-08 22:18 ` Christoph Lameter
2008-01-08 22:28 ` Rik van Riel
2008-01-09 4:26 ` KAMEZAWA Hiroyuki
2008-01-08 20:59 ` [patch 04/19] Use an indexed array for LRU variables Rik van Riel
2008-01-08 20:59 ` [patch 05/19] split LRU lists into anon & file sets Rik van Riel
2008-01-08 22:22 ` Christoph Lameter
2008-01-08 22:36 ` Rik van Riel
2008-01-08 22:42 ` Christoph Lameter
2008-01-09 2:45 ` Rik van Riel
2008-01-09 4:41 ` KAMEZAWA Hiroyuki
2008-01-10 2:21 ` Balbir Singh
2008-01-10 2:36 ` KAMEZAWA Hiroyuki
2008-01-10 3:26 ` Balbir Singh
2008-01-10 4:23 ` KAMEZAWA Hiroyuki
2008-01-10 2:28 ` KAMEZAWA Hiroyuki
2008-01-10 2:37 ` Rik van Riel
2008-01-11 3:59 ` KOSAKI Motohiro
2008-01-11 15:37 ` Rik van Riel
2008-01-11 6:24 ` KOSAKI Motohiro
2008-01-11 15:42 ` Rik van Riel
2008-01-11 15:59 ` Lee Schermerhorn
2008-01-11 16:15 ` Rik van Riel
2008-01-11 19:51 ` Lee Schermerhorn
2008-01-11 15:50 ` Lee Schermerhorn
2008-01-11 16:06 ` Rik van Riel
2008-01-11 7:35 ` KOSAKI Motohiro
2008-01-11 15:46 ` Rik van Riel
2008-01-14 23:57 ` KOSAKI Motohiro
2008-01-30 3:25 ` KOSAKI Motohiro
2008-01-30 8:57 ` KOSAKI Motohiro
2008-01-30 14:29 ` Lee Schermerhorn
2008-01-31 1:17 ` KOSAKI Motohiro
2008-01-31 10:48 ` Rik van Riel
2008-01-31 10:59 ` KOSAKI Motohiro
2008-02-07 0:35 ` Rik van Riel
2008-02-07 1:20 ` KOSAKI Motohiro
2008-02-07 1:36 ` Rik van Riel
2008-01-08 20:59 ` [patch 06/19] SEQ replacement for anonymous pages Rik van Riel
2008-01-08 20:59 ` [patch 07/19] (NEW) add some sanity checks to get_scan_ratio Rik van Riel
2008-01-09 4:16 ` KAMEZAWA Hiroyuki
2008-01-09 12:53 ` Rik van Riel
2008-01-08 20:59 ` [patch 08/19] add newly swapped in pages to the inactive list Rik van Riel
2008-01-08 22:28 ` Christoph Lameter
2008-01-08 20:59 ` [patch 09/19] (NEW) more aggressively use lumpy reclaim Rik van Riel
2008-01-08 22:30 ` Christoph Lameter
2008-01-14 15:28 ` Mel Gorman
2008-01-08 20:59 ` [patch 10/19] No Reclaim LRU Infrastructure Rik van Riel
2008-01-11 4:36 ` KOSAKI Motohiro
2008-01-11 15:43 ` Lee Schermerhorn
2008-01-15 0:06 ` KOSAKI Motohiro
2008-01-08 20:59 ` [patch 11/19] Non-reclaimable page statistics Rik van Riel
2008-01-08 20:59 ` [patch 12/19] scan noreclaim list for reclaimable pages Rik van Riel
2008-01-08 20:59 ` [patch 13/19] ramfs pages are non-reclaimable Rik van Riel
2008-01-08 20:59 ` [patch 14/19] SHM_LOCKED pages are nonreclaimable Rik van Riel
2008-01-08 20:59 ` [patch 15/19] non-reclaimable mlocked pages Rik van Riel
2008-01-08 20:59 ` [patch 16/19] mlock vma pages under mmap_sem held for read Rik van Riel
2008-01-08 20:59 ` [patch 17/19] handle mlocked pages during map/unmap and truncate Rik van Riel
2008-01-08 20:59 ` [patch 18/19] account mlocked pages Rik van Riel
2008-01-11 12:51 ` Balbir Singh
2008-01-13 5:18 ` Rik van Riel
2008-01-08 20:59 ` [patch 19/19] cull non-reclaimable anon pages from the LRU at fault time Rik van Riel
2008-01-10 4:39 ` [patch 00/19] VM pageout scalability improvements Mike Snitzer
2008-01-10 15:41 ` Rik van Riel
2008-01-10 16:08 ` Mike Snitzer
2008-01-11 10:41 ` Balbir Singh
2008-01-11 15:38 ` Rik van Riel
2008-01-11 11:47 ` Balbir Singh
2008-01-16 6:17 ` KOSAKI Motohiro [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20080116144826.11C0.KOSAKI.MOTOHIRO@jp.fujitsu.com \
--to=kosaki.motohiro@jp.fujitsu.com \
--cc=lee.schermerhorn@hp.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=riel@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®