From: Fyodor Ustinov <ufm@ufm.su>
To: Gregory Farnum <gregf@hq.newdream.net>
Cc: ceph-devel@vger.kernel.org
Subject: Re: read and write speed.
Date: Tue, 31 May 2011 18:05:59 +0300 [thread overview]
Message-ID: <4DE503D7.8080703@ufm.su> (raw)
In-Reply-To: <BANLkTimPzWufFvxQ_AiyHoJrE7b-+3an3w@mail.gmail.com>
On 05/31/2011 05:51 PM, Gregory Farnum wrote:
> Sage created an issue to track this:
> http://tracker.newdream.net/issues/1122
>
> Based on the differences between the FUSE and kernel clients, it's
> probably just readahead settings. :)
> -Greg
I'm not sure.
rsize 10 times more than the default:
root@gate0:~# mount -t ceph -o rsize=5242880 10.5.51.230:/ /mnt
root@gate0:~# cd /mnt/
root@gate0:/mnt# dd if=bbb of=/dev/null bs=1024000
10000+0 records in
10000+0 records out
10240000000 bytes (10 GB) copied, 126.168 s, 81.2 MB/s
root@gate0:/mnt# cd
root@gate0:~# umount /mnt
rsize 100 times more
root@gate0:~# mount -t ceph -o rsize=52428800 10.5.51.230:/ /mnt
root@gate0:~# cd /mnt/
root@gate0:/mnt# dd if=bbb of=/dev/null bs=1024000
10000+0 records in
10000+0 records out
10240000000 bytes (10 GB) copied, 123.432 s, 83.0 MB/s
root@gate0:/mnt# cd
root@gate0:~# umount /mnt
cfuse
root@gate0:~# cfuse -m 10.5.51.230:/ /mnt
** WARNING: Ceph is still under development. Any feedback can be
directed **
** at ceph-devel@vger.kernel.org or
http://ceph.newdream.net/. **
cfuse[1686]: starting ceph client
cfuse[1686]: starting fuse
root@gate0:~# cd /mnt
root@gate0:/mnt# dd if=bbb of=/dev/null bs=1024000
10000+0 records in
10000+0 records out
10240000000 bytes (10 GB) copied, 93.3285 s, 110 MB/s
root@gate0:/mnt#
WBR,
Fyodor.
prev parent reply other threads:[~2011-05-31 15:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-30 22:50 read and write speed Fyodor Ustinov
2011-05-31 2:26 ` djlee064
2011-05-31 2:48 ` Henry C Chang
2011-05-31 3:20 ` djlee064
2011-05-31 7:06 ` Henry C Chang
2011-05-31 7:29 ` djlee064
2011-05-31 10:01 ` Fyodor Ustinov
2011-05-31 14:51 ` Gregory Farnum
2011-05-31 15:05 ` Fyodor Ustinov [this message]
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