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Re: [Qemu-devel] [patch] performance improvement (softmmu, x86, GCC 3)

From: Piotr Krysik
Subject: Re: [Qemu-devel] [patch] performance improvement (softmmu, x86, GCC 3)
Date: Wed, 4 Aug 2004 18:43:12 -0700 (PDT)

I send you the patches off-list.


--- André_Braga <address@hidden> wrote:

> Hmmm, that's very, very interesting (and exciting)!
> Squeezing any
> ounce of performance out of QEMU is *very* desirable
> IMO, provided
> that it doesn't break compatibility with other
> architectures. I'd
> personally enjoy to see a patch (better yet, three
> discrete and
> independent patches) that disable GCSE (this one is
> done!), introduce
> the "ecx thing" (sorry if I have no idea what you
> meant in your
> message about this -- a patch with some code would
> certainly help) and
> another one that manually inlines the function you
> mentioned. All in
> all, I'd like to see all the code working without
> special GCC switches
> that are not pro-optimization ones, because I see
> those as
> regressions.
> Could you send me these patches? I'd glad to test
> them! I'm not sure
> if I can be any more helpful than this since I'm
> just beginning to get
> familiar to the emulation techniques of QEMU, let
> alone the code by
> itself...

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