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Re: [Xen-ia64-devel] [PATCH] speedup ptc.e emulation

from [Alex Williamson] [Permanent Link][Original]
To: Kouya Shimura <kouya@xxxxxxxxxxxxxx>
Subject: Re: [Xen-ia64-devel] [PATCH] speedup ptc.e emulation
From: Alex Williamson <alex.williamson@xxxxxx>
Date: Mon, 16 Jul 2007 20:10:24 -0600
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On Tue, 2007-07-17 at 10:55 +0900, Kouya Shimura wrote:
> Previously it took 13msecs to emulate a ptc.e instruction.
> This patch saves 4msecs though it's still slow.
> 
> Windows uses ptc.e so often. we got 8% gain in TTCP
> (network benchmark) on Windows guest with this change.

  Wow, good improvement.  Thanks,

        Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.


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