Re: [v6] kvm/fpu: Enable fully eager restore kvm FPU

From: Dave Hansen
Date: Thu Apr 23 2015 - 11:28:38 EST


On 04/23/2015 02:13 PM, Liang Li wrote:
> When compiling kernel on westmere, the performance of eager FPU
> is about 0.4% faster than lazy FPU.

Do you have an theory why this is? What does the regression come from?


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