Re: [RFC PATCH V3 0/6] vhost: accelerate metadata access

[Jason Wang]

On 2019/4/23 äå1:54, 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. 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.


Ping. Comments are more than welcomed.

Thanks