From: Fyodor Ustinov <ufm@ufm.su>
To: ceph-devel@vger.kernel.org
Subject: rbd speed: write vs read
Date: Fri, 06 May 2011 16:58:21 +0300 [thread overview]
Message-ID: <4DC3FE7D.3090903@ufm.su> (raw)
Hi!
root@stb1:~# dd if=/dev/zero of=/dev/rbd0 bs=10240000
^C13217+0 records in
13217+0 records out
135342080000 bytes (135 GB) copied, 1135.75 s, 119 MB/s
root@stb1:~# dd if=/dev/rbd0 of=/dev/null bs=10240000
^C930+0 records in
929+0 records out
9512960000 bytes (9.5 GB) copied, 394.773 s, 24.1 MB/s
It's my misconfiguration?
P.S. 20 OSD servers, 2*1G ether.
WBR,
Fyodor.
next reply other threads:[~2011-05-06 13:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-06 13:58 Fyodor Ustinov [this message]
-- strict thread matches above, loose matches on Subject: below --
2011-05-06 14:14 rbd speed: write vs read Fyodor Ustinov
2011-05-06 16:08 ` Sage Weil
2011-05-06 18:01 ` Fyodor Ustinov
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