From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
Subject: how to debug slow rbd block device
Date: Tue, 22 May 2012 14:45:15 +0200
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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