[tesla-dev] Experiment Results on APERF/MPERF registers - Need Clarification

[Eric Saxe]

Vinay Devadas wrote:
> By the way, I am taking care to make the 2 reads happens as quickly as possible,
> spl_high()
> rdmsr (APERF)
> rdmsr (MPERF)
> spl0()
>
> Please let me know of any suggestions/explanations possible.
>   
Just curious, what happens when you switch the order of the rdmsr (MPERF 
before APERF), same result?

-Eric