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Subject: Re: [PATCH 2/2] vhost: re-introducing metadata acceleration through
 kernel virtual address
From:   Jason Wang <jasowang@redhat.com>
To:     "Michael S. Tsirkin" <mst@redhat.com>
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Date:   Mon, 9 Sep 2019 10:30:20 +0800
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On 2019/9/9 上午10:18, Jason Wang wrote:
>>>
>>> On a elder CPU Sandy Bridge without SMAP support. TX PPS doesn't see
>>> any difference.
>> Why is not Kaby Lake with SMAP off the same as Sandy Bridge?
>
>
> I don't know, I guess it was because the atomic is l 


Sorry, I meant atomic costs less for Kaby Lake.

Thanks