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Re: [Qemu-devel] Hand written code generator #2
From: |
Paul Brook |
Subject: |
Re: [Qemu-devel] Hand written code generator #2 |
Date: |
Thu, 2 Jun 2005 14:31:00 +0100 |
User-agent: |
KMail/1.7.2 |
On Thursday 02 June 2005 11:53, Christian MICHON wrote:
> Paul,
>
> on mingw32/x86-XP host, I see no difference on benchs with i386-softmmu.
> You mentionned around 30% improvements. Any special compiler flags to
> use, or compiler version?
I also said that the arm-user emulation was the only target that had been
converted enough to benefit from the new code. The optimization passes
only work on the new qops. Existing dyngen based ops are not touched.
On rereading the results I did the math wrong, I actually got a 15% speedup
(2.3 vs. 2.0), but everything else still holds.
To get the latest copy of my code you can do
svn co https://nowt.dyndns.org/svn/qemu/trunk qemu
Or for a diff of just my changes
svn diff https://nowt.dyndns.org/svn/qemu/cvs
https://nowt.dyndns.org/svn/qemu/trunk
Paul