Re: [RFC][PATCH 0/6] Another go at speculative page faults

From: Ingo Molnar
Date: Tue Oct 21 2014 - 12:23:53 EST



* Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> My Ivy Bridge EP (2*10*2) has a ~58% improvement in pagefault throughput:
>
> PRE:
> 149,441,555 page-faults ( +- 1.25% )
>
> POST:
> 236,442,626 page-faults ( +- 0.08% )

> My Ivy Bridge EX (4*15*2) has a ~78% improvement in pagefault throughput:
>
> PRE:
> 105,789,078 page-faults ( +- 2.24% )
>
> POST:
> 187,751,767 page-faults ( +- 2.24% )

I guess the 'PRE' and 'POST' numbers should be flipped around?

Thanks,

Ingo
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