Re: 2.6.24-rc3-mm1 (sync is slow ?)
- From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
- Date: Wed, 21 Nov 2007 17:49:48 +0900
On Wed, 21 Nov 2007 17:42:15 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> wrote:
Hi, AndrewAh, one of cpu shows 100% iowait in 'top' command while this.
I got following result in 'sync' command.
It was too slow. (memory controller config is off ;)
I attaches my .config.
==
[2.6.24-rc3-mm1]
[kamezawa@dr-test2 ~]$ dd if=/dev/zero of=./tmpfile bs=4096 count=100000
100000+0 records in
100000+0 records out
409600000 bytes (410 MB) copied, 1.46706 seconds, 279 MB/s
[kamezawa@dr-test2 ~]$ time sync
real 3m6.440s
user 0m0.000s
sys 0m0.133s
-Kame
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- From: Andrew Morton
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