Re: [PATCH] [2.6.32-longterm] ioat2: kill pending flag

From: Willy Tarreau
Date: Thu May 31 2012 - 10:28:32 EST


Hi Mike,

On Thu, May 31, 2012 at 04:00:15PM +0200, Mike Galbraith wrote:
> Greetings,
>
> While testing tbench 40 throughput on a 40 core (+SMT) Intel SDV S3E37,
> I found spin_lock_bh() consuming _90%_ of the box, driving throughput
> straight through the floor. The commit below fixed it up.
>
> This looks horrific enough to me to qualify for 2.6.32-longterm.

I've queued it up for next release. Thank you very much!

Willy

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