From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dave Hansen <dave.hansen@intel.com>
Subject: Re: [v6] kvm/fpu: Enable fully eager restore kvm FPU
Date: Thu, 23 Apr 2015 08:28:26 -0700
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To: Liang Li <liang.z.li@intel.com>, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org
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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?