Re: [PATCH] don't use ld.bias

From: Jesse Barnes <jbarnes_at_sgi.com>
Date: 2003-07-25 23:40:07
On Thu, Jul 24, 2003 at 06:10:13PM -0700, David Mosberger wrote:
> >>>>> On Mon, 21 Jul 2003 16:55:59 -0700, jbarnes@sgi.com (Jesse Barnes) said:
> 
>   Jesse> Patch to fix spin_lock to not use ld.bias since it causes a
>   Jesse> bunch of bus activity that hurts scalability when a lock is
>   Jesse> contended.
> 
> Yes, using ld.bias really was wrong there.  However, instead of
> applying your patch, I dropped the old lock code (which was
> effectively dead code) and instead removed the .bias from the
> ia64_spinlock_contention() routine in head.S.

Even better.  Thanks.

Jesse
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Received on Fri Jul 25 09:42:06 2003

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