From: Andi Kleen <andi@firstfloor.org>
To: Dave Chinner <david@fromorbit.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: [BUG 3.0-rc1] oops during file removal, severe lock contention
Date: Thu, 02 Jun 2011 12:46:24 -0700 [thread overview]
Message-ID: <m2aae0t3sf.fsf@firstfloor.org> (raw)
In-Reply-To: <20110602011139.GP561@dastard> (Dave Chinner's message of "Thu, 2 Jun 2011 11:11:39 +1000")
Dave Chinner <david@fromorbit.com> writes:
>
> Also, there is massive lock contention while running these workloads.
> perf top shows this for the create after about 5m inodes have been
> created:
We saw pretty much the same thing in some simple tests on large systems
(extent io tree locking and higher level b*tree locks are a problem)
It is being looked at I believe.
-Andi
--
ak@linux.intel.com -- Speaking for myself only
next prev parent reply other threads:[~2011-06-02 19:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-02 1:11 [BUG 3.0-rc1] oops during file removal, severe lock contention Dave Chinner
2011-06-02 19:46 ` Andi Kleen [this message]
2011-06-02 22:21 ` Chris Mason
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