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From: Rick Vernam <rickv@hobi.com>
Subject: Re: [Qemu-devel] [4270] bios: disable processor SSDT generation.
Date: Sun, 27 Apr 2008 22:50:59 -0500
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To: qemu-devel@nongnu.org

In my experience, WinXP sp2 (32-bit), Win2K sp4 & linux 2.6.20 (gentoo & 
vanilla - both 32-bit and not running X) all idled high - typically between 
40% and 50% host cpu usage.

disclamer: I'm running x86-64 host using unsupported gcc4.

On Sunday 27 April 2008 10:33:41 pm Filip Navara wrote:
> Under which operating system and in which conditions? Some operating
> systems I use under QEMU require the processor descriptors and I've
> been told that certain version of Windows Vista doesn't idle if the
> processsor descriptors aren't present.
>
> Best regards,
> Filip Navara
>
> On Mon, Apr 28, 2008 at 1:46 AM, Aurelien Jarno <aurelien@aurel32.net> 
wrote:
> > Revision: 4270
> >           http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=4270
> >  Author:   aurel32
> >  Date:     2008-04-27 23:46:00 +0000 (Sun, 27 Apr 2008)
> >
> >  Log Message:
> >  -----------
> >  bios: disable processor SSDT generation. Fixes high idle load on
> >  x86/x86-64.
> > [snip] ...