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From: Stefan Priebe <s.priebe@profihost.ag>
To: Mark Nelson <mark.nelson@inktank.com>
Cc: Alexandre DERUMIER <aderumier@odiso.com>, ceph-devel@vger.kernel.org
Subject: Re: ceph-osd cpu usage
Date: Thu, 15 Nov 2012 20:44:17 +0100	[thread overview]
Message-ID: <50A54611.5070107@profihost.ag> (raw)
In-Reply-To: <50A50640.1040103@inktank.com>

Hi Mark,

Am 15.11.2012 16:12, schrieb Mark Nelson:
> Out of curiosity, does it help much if you disable crc32c calculations?
> Use the "nocrc" option in your ceph.conf file.  I've had my eye on
> crcutil as an alternative to how we do crc32c now.
>
> http://code.google.com/p/crcutil/
>
> Mark
This changes nothing. CPU Load doesn't change on osds. This was a bit 
tricky ;-) i had to set nocrc on kvm host as well otherwise kvm wasn't 
starting due to bad crc.

Greets,
Stefan

  parent reply	other threads:[~2012-11-15 19:44 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-15 10:56 ceph-osd cpu usage Stefan Priebe - Profihost AG
2012-11-15 11:18 ` Alexandre DERUMIER
2012-11-15 12:19   ` Stefan Priebe - Profihost AG
2012-11-15 15:12     ` Mark Nelson
2012-11-15 16:09       ` Stefan Priebe
2012-11-15 16:52         ` Sage Weil
2012-11-15 19:44       ` Stefan Priebe [this message]
2012-11-15 15:14 ` Sage Weil
2012-11-15 15:30   ` Stefan Priebe - Profihost AG
2012-11-15 20:26   ` Stefan Priebe
2012-11-16  8:41     ` Alexandre DERUMIER
2012-11-16  9:11       ` Stefan Priebe - Profihost AG

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