Re: [Gems-users] question about simics clock frequency


Date: Tue, 19 Sep 2006 05:28:11 +0800 (CST)
From: guo fei <gsta_guofei@xxxxxxxxxxxx>
Subject: Re: [Gems-users] question about simics clock frequency
if this is the case, does the cpu frequency value matter for simulation accuracy?
Can we just use 4G as cpu frequency to represent a modern cpu?
Thanks

Fei

Mike Marty <mikem@xxxxxxxxxxx>
> I use simics with Ruby only that simulates a 2 core CMP architecture.
> I change the simics clock frequency from 20Mhz to 2048Mhz, the results of L2 misses per processor are quite different.
> The cpu-switch-time is set to be 1.
> I am wondering how cpu clock frequency affects the cache accesses flow?
>

Simics will probably generate a different code path because of things
like the RTC (real-time clock) interrupt.

--Mike

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