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Re: [Qemu-devel] Reporting Heisenbugs in qemu

From: Aurelien Jarno
Subject: Re: [Qemu-devel] Reporting Heisenbugs in qemu
Date: Wed, 8 May 2013 00:57:36 +0200
User-agent: Mutt/1.5.21 (2010-09-15)

On Tue, May 07, 2013 at 11:29:20PM +0200, Artyom Tarasenko wrote:
> On Tue, May 7, 2013 at 1:38 PM, Torbjorn Granlund <address@hidden> wrote:
> > The 2nd table of http://gmplib.org/devel/testsystems.html shows all
> > emulated systems I am using, most of which are qemu-based.
> Do I read it correct that qemu-system-ppc64 with the slowdown factor
> of 33 is ~3 times faster than qemu-system-sparc64 with the slowdown
> factor of 96 ?
> Do they both use Debian Wheezy guest? You have a remark that ppc64 has
> problems with its clock. Was it taken into account when the slowdown
> factors were calculated?

Clock or not, it should be noted that qemu-system-sparc64 is undoubtedly
slower (at least 5 to 10 times) than qemu-system-{arm,ppc,mips,...} on
some type of load like perl scripts.

Aurelien Jarno                          GPG: 1024D/F1BCDB73
address@hidden                 http://www.aurel32.net

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