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Re: [Qemu-devel] -kernel-kqemu

From: Troy Benjegerdes
Subject: Re: [Qemu-devel] -kernel-kqemu
Date: Wed, 19 Apr 2006 12:31:03 -0500
User-agent: Mutt/1.5.9i

On Thu, Feb 09, 2006 at 04:01:34PM -0600, Anthony Liguori wrote:
> Jim C. Brown wrote:
> >-kernel-kqemu virtualizes ring 0 code.
> >
> >So it basically makes qemu do what VMware does.
> >
> >IIRC someone reported a 33% speedup with the new option.
> >  
> That was me.  That was a 33% speedup on win2k startup time.  kqemu (user 
> only) has a negligible impact on win2k startup time which suggests this 
> is mostly ring 0 code running which would make it a good benchmark for 
> kernel-kqemu performance.
> This was a terribly unscientific benchmarking so don't read too much 
> into it.
> Regards,
> Anthony Liguori

My win2k guest (with SP4, but not any updates) seemed to hang on startup
with -kernel-kqemu.

(This is today's qemu-cvs with kqemu-1.3.0pre5)

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