[Gems-users] ruby cycles compare with simics cycles

[xiaox@xxxxxxxxxx]

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