Re: [PATCH net-next V4 0/5] vhost: accelerate metadata access through vmap()

David Miller
2019-01-23T17:24:12Z

From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Wed, 23 Jan 2019 08:58:07 -0500

> On Wed, Jan 23, 2019 at 05:55:52PM +0800, Jason Wang wrote:
>> This series tries to access virtqueue metadata through kernel virtual
>> address instead of copy_user() friends since they had too much
>> overheads like checks, spec barriers or even hardware feature
>> toggling.
>>
>> Test shows about 24% improvement on TX PPS. It should benefit other
>> cases as well.
>
> ok I think this addresses most comments but it's a big change and we
> just started 1.1 review so to pls give me a week to review this ok?

Ok. :)