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Re: [Qemu-devel] Qemu performance
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From: |
Mulyadi Santosa |
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Subject: |
Re: [Qemu-devel] Qemu performance |
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Date: |
Wed, 29 Jun 2011 17:27:20 +0700 |
Hi... :)
2011/6/29 Lê Đức Tài <address@hidden>:
> Hi,
> I have a question about performance of Qemu for powerpc.
> When I'm changing the CPU clock for taihu board from 33Mhz to 330Mhz by
> setting the PLL value, the performance of Guest OS is not increased. I use
> nbench to measure the guest performance.
> Is qemu always running as maximum performance?
Yes...
Logically, nbench is just pressing out all of your processor can do
(CPU bound tasks). In this case, emulated guest processor clock has
very little meaning IMO. After all, AFAIK it's just a complimentary
info so it is seen as "real processor".
--
regards,
Mulyadi Santosa
Freelance Linux trainer and consultant
blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com