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From: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
To: ceph-devel@vger.kernel.org
Subject: how to debug slow rbd block device
Date: Tue, 22 May 2012 14:45:15 +0200	[thread overview]
Message-ID: <4FBB8A5B.9010500@profihost.ag> (raw)

Hi list,

my ceph block testcluster is now running fine.

Setup:
4x ceph servers
  - 3x mon with /mon on local os SATA disk
  - 4x OSD with /journal on tmpfs and /srv on intel ssd

all of them use 2x 1Gbit/s lacp trunk.

1x KVM Host system (2x 1Gbit/s lacp trunk)

With one KVM i do not get more than 40MB/s and my network link is just
at 40% of 1Gbit/s.

Is this expected? If not where can i start searching / debugging?

Thanks,
Stefan

             reply	other threads:[~2012-05-22 12:45 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-22 12:45 Stefan Priebe - Profihost AG [this message]
2012-05-22 14:52 ` how to debug slow rbd block device 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
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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