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SubjectRe: [PATCH net-next 0/6] vhost: accelerate metadata access

On 2019/6/6 上午4:27, Michael S. Tsirkin wrote:
> On Fri, May 24, 2019 at 04:12:12AM -0400, Jason Wang wrote:
>> Hi:
>> 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 like SMAP. This is done through setup kernel address through
>> direct mapping and co-opreate VM management with MMU notifiers.
>> Test shows about 23% improvement on TX PPS. TCP_STREAM doesn't see
>> obvious improvement.
>> Thanks
> Thanks this is queued for next.
> Did you want to rebase and repost packed ring support on top?
> IIUC it's on par with split ring with these patches.

Yes, it's on the way.


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