Re: [Gems-users] ruby cycles compare with simics cycles

[Mike Marty <mikem@xxxxxxxxxxx>]

is SIMICS_RUBY_MULTIPLIER set to 2?

> hi,
>
> I want to use the ruby_cycles as my performance metric. However, I observe that
> ruby_cycles is different from the number of cycles I counted through Simics?
> Why is that? I suppose ruby always return its latency to Simics. So I should
> have the same number of cycles on both sides. And the simics cycles is almost
> twice as the ruby cycles. Can anyone explain to me how ruby counts its cycles?
>
> many thanks,
>
> btw, I am using gems1.1 with simics-2.0.28
>
>
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