From: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
To: Josh Durgin <josh.durgin@inktank.com>
Cc: Greg Farnum <greg@inktank.com>, ceph-devel@vger.kernel.org
Subject: Re: how to debug slow rbd block device
Date: Wed, 23 May 2012 09:01:21 +0200 [thread overview]
Message-ID: <4FBC8B41.1020300@profihost.ag> (raw)
In-Reply-To: <4FBC83F3.7070400@inktank.com>
Am 23.05.2012 08:30, schrieb Josh Durgin:
> On 05/22/2012 11:18 PM, Stefan Priebe - Profihost AG wrote:
>> Hi,
>>
>>>> So try enabling RBD writeback caching — see http://marc.info
>>>> /?l=ceph-devel&m=133758599712768&w=2
>>>> will test tomorrow. Thanks.
>> Can we path this to the qemu-drive option?
>
> Yup, see http://article.gmane.org/gmane.comp.file-systems.ceph.devel/6400
I'm sorry, i still don't get it where to pass rbd_cache_max_dirty, ...
can i add it just to the ceph.conf? Even with qemu 1.0?
Stefan
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next prev parent reply other threads:[~2012-05-23 7:01 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-22 12:45 how to debug slow rbd block device Stefan Priebe - Profihost AG
2012-05-22 14:52 ` Andrey Korolyov
2012-05-22 19:27 ` Stefan Priebe
2012-05-22 19:35 ` Greg Farnum
2012-05-22 19:40 ` Stefan Priebe
2012-05-22 19:52 ` Greg Farnum
2012-05-22 20:13 ` Stefan Priebe
2012-05-22 20:30 ` Stefan Priebe
2012-05-22 20:48 ` Mark Nelson
2012-05-22 20:54 ` Stefan Priebe
2012-05-22 20:49 ` Greg Farnum
2012-05-22 21:00 ` Stefan Priebe
2012-05-22 21:11 ` Greg Farnum
2012-05-23 6:18 ` Stefan Priebe - Profihost AG
2012-05-23 6:30 ` Josh Durgin
2012-05-23 7:01 ` Stefan Priebe - Profihost AG [this message]
2012-05-23 7:19 ` Josh Durgin
2012-05-23 7:22 ` Stefan Priebe - Profihost AG
2012-05-23 7:33 ` Josh Durgin
[not found] ` <CABYiri8PXT9dpCGLE7dn=_PoW8CdLxqZF87OHe=dMXEWxogb_w@mail.gmail.com>
2012-05-23 19:54 ` Josh Durgin
2012-05-23 8:20 ` Stefan Priebe - Profihost AG
2012-05-23 8:29 ` Josh Durgin
2012-05-23 7:22 ` Andrey Korolyov
2012-05-23 8:15 ` Stefan Priebe - Profihost AG
2012-05-23 11:47 ` Mark Nelson
2012-05-23 8:30 ` Stefan Priebe - Profihost AG
2012-05-23 9:10 ` Stefan Priebe - Profihost AG
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