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Re: [Qemu-devel] qemu-system-i386 vs qemu-system-x86_64 ?
From: |
Michael Tokarev |
Subject: |
Re: [Qemu-devel] qemu-system-i386 vs qemu-system-x86_64 ? |
Date: |
Fri, 14 Sep 2012 14:03:58 +0400 |
User-agent: |
Mozilla/5.0 (X11; Linux i686 on x86_64; rv:10.0.6esrpre) Gecko/20120817 Icedove/10.0.6 |
On 14.09.2012 14:00, Jan Kiszka wrote:
[]
> The major difference in qemu-system-i386 vs. qemu-system-x86_64 is on
> the TCG side: We measured noticeable performance benefits when running
> 32/16 bit OSes against qemu-system-i386 vs. using qemu-system-x86_64. I
> don't have numbers at hand, but colleagues decided to use the 32-bit
> version for that reason (when no KVM is available).
Interesting. Maybe someone should look at the difference on TCG side
and merge interesting bits from i386 to x86_64... :)
The thing is: x86_64 becomes the only x86 platform these days, or at
least the MAIN platform.
Thank you for the clarification -- very useful information indeed!
/mjt
Re: [Qemu-devel] qemu-system-i386 vs qemu-system-x86_64 ?, Blue Swirl, 2012/09/14