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From: Josh Durgin <josh.durgin@inktank.com>
To: Vladimir Bashkirtsev <vladimir@bashkirtsev.com>
Cc: ceph-devel@vger.kernel.org
Subject: Re: Poor read performance in KVM
Date: Wed, 18 Jul 2012 08:34:43 -0700	[thread overview]
Message-ID: <5006D793.6090906@inktank.com> (raw)
In-Reply-To: <50064DCD.8040904@bashkirtsev.com>

On 07/17/2012 10:46 PM, Vladimir Bashkirtsev wrote:
>> ceph --admin-daemon /var/run/ceph/kvm.asok perf dump
> Done that. Waited for VM to fully boot then got perf dump. It would be
> nice to get output in human readable format instead of JSON - I remember
> some other part of ceph had relevant command line switch. Does it exist
> for perf dump?

I forgot to mention you can pipe that to 'python -mjson.tool' for more
readable output. It's intended to be used by monitoring tools, hence
json, but some kind of more plain output could be added.

Josh

  parent reply	other threads:[~2012-07-18 15:34 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-15 13:13 Poor read performance in KVM Vladimir Bashkirtsev
2012-07-16  6:16 ` Josh Durgin
2012-07-18  5:46   ` Vladimir Bashkirtsev
2012-07-18 15:27     ` Josh Durgin
2012-07-19 10:46       ` Vladimir Bashkirtsev
2012-07-19 12:19       ` Vladimir Bashkirtsev
2012-07-19 15:52         ` Tommi Virtanen
2012-07-19 18:06           ` Calvin Morrow
2012-07-19 18:15             ` Mark Nelson
2012-07-20  5:24               ` Vladimir Bashkirtsev
2012-07-20  5:24             ` Vladimir Bashkirtsev
2012-07-20  5:20           ` Vladimir Bashkirtsev
     [not found]       ` <50080D9D.8010306@bashkirtsev.com>
2012-07-19 18:42         ` Josh Durgin
2012-07-20  5:31           ` Vladimir Bashkirtsev
2012-07-20 16:17           ` Vladimir Bashkirtsev
2012-07-20 16:42             ` Tommi Virtanen
2012-07-20 16:53               ` Mark Nelson
2012-07-20 16:53               ` Vladimir Bashkirtsev
2012-07-29 15:31               ` Vladimir Bashkirtsev
2012-07-29 16:13                 ` Mark Nelson
2012-07-18 15:34     ` Josh Durgin [this message]
2012-07-18  5:49   ` Vladimir Bashkirtsev
2012-07-18  5:51   ` Vladimir Bashkirtsev

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