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Re: [Qemu-devel] ARM CPU Speed simulated by Qemu?

From: nyos
Subject: Re: [Qemu-devel] ARM CPU Speed simulated by Qemu?
Date: Tue, 12 Sep 2006 13:03:02 +0200
User-agent: Thunderbird (X11/20060516)

Tieu Ma Dau wrote:
Hi all, I found that Qemu ARM system simulates ARM926EJ-S and
ARM1026EJ-S processor. And I found on ARM website that
the speed of these CPUs vary from 266 to 540 MHz.
Could you tell me the exact speed of the ARM926EJ-S
and ARM1026EJ-S processor simulated by Qemu? It's very
important for me to finish my report.
Thanks and best regards,

You can guess cpu speed by running some benchmarks, but it's impossible to tell exactly. Qemu translates arm blocks into host cpu instructions dynamically at run-time, and executes them. So, the processor doesn't run the same instructions, only the instructions whose effect is the same on the other architecture.


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