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Subject: Re: Performance regression from switching lock to rw-sem for
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From: Tim Chen <tim.c.chen@linux.intel.com>
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Date: Tue, 30 Jul 2013 13:34:11 -0700
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To: Davidlohr Bueso <davidlohr@hp.com>
Cc: Ingo Molnar <mingo@kernel.org>, Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@elte.hu>, Andrea Arcangeli <aarcange@redhat.com>, Mel Gorman <mgorman@suse.de>, "Shi, Alex" <alex.shi@intel.com>, Andi Kleen <andi@firstfloor.org>, Andrew Morton <akpm@linux-foundation.org>, Michel Lespinasse <walken@google.com>, Davidlohr Bueso <davidlohr.bueso@hp.com>, "Wilcox, Matthew R" <matthew.r.wilcox@intel.com>, Dave Hansen <dave.hansen@intel.com>, Rik van Riel <riel@redhat.com>, linux-kernel@vger.kernel.org, linux-mm <linux-mm@kvack.org>, Dave Chinner <david@fromorbit.com>

On Tue, 2013-07-30 at 12:59 -0700, Davidlohr Bueso wrote:
> cc'ing Dave Chinner for XFS
> 

Davidlohr,

I also wonder it this change benefit your workload.  Will
be interested to know of your performance numbers.

Tim

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