From: Christian Herzog <horeizo@phys.ethz.ch>
To: Christoph Hellwig <hch@infradead.org>
Cc: xfs@oss.sgi.com
Subject: Re: XFS errors on large Infiniband fileserver setup
Date: Thu, 23 Sep 2010 16:10:02 +0200 [thread overview]
Message-ID: <77e6c761e37345ccf7bcd052096511c3@phys.ethz.ch> (raw)
In-Reply-To: <20100923135425.GA32476@infradead.org>
> On Thu, Sep 23, 2010 at 01:52:46PM +0200, Christian Herzog wrote:
>> > Btw, what target do you use? According to
>> > http://www.spinics.net/lists/linux-stgt/msg02038.html it seems like the
>> > stgt iser target has some issues that look quite similar to yours.
>> we're using tgt which might have a similar problem.
>
> tgt and stgt is actually one and the same - the name is used a little
> bit inconsistently.
oh *blush*
well I guess this might be our issue then..
>> As even IB over TCP is several times faster than our disks, we will now
>> proceed w/o iSER to have the system running and then experiment with
>> iSER on a test system.
>
> At least for NFS using RDMA natively mostly affects CPU usage and not
> throughput, so if you have some CPU cycles to spare it might not make
> much of a difference.
even in our hardcore torture tests the system load is pretty
reasonable, so I guess we're good.
thanks,
-Christian
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next prev parent reply other threads:[~2010-09-23 14:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-23 7:22 XFS errors on large Infiniband fileserver setup Christian Herzog
2010-09-23 10:01 ` Christian Herzog
2010-09-23 10:38 ` Christoph Hellwig
2010-09-23 11:52 ` Christian Herzog
2010-09-23 13:54 ` Christoph Hellwig
2010-09-23 14:10 ` Christian Herzog [this message]
2010-09-23 23:53 ` Dave Chinner
2010-09-24 5:41 ` Christian Herzog
2010-09-24 8:56 ` Stan Hoeppner
2010-09-24 13:19 ` Emmanuel Florac
2010-09-24 13:19 ` Emmanuel Florac
2010-09-27 5:49 ` Christian Herzog
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