On Wed, Jul 17, 2019 at 08:27:28PM +0800, Jason Wang wrote: > > On 2019/7/17 下午7:02, Michael S. Tsirkin wrote: > > On Wed, Jul 17, 2019 at 06:52:40AM -0400, Jason Wang wrote: > > > Hi all: > > > > > > This series implements packed virtqueues which were described > > > at [1]. In this version we try to address the performance regression > > > saw by V2. The root cause is packed virtqueue need more times of > > > userspace memory accesssing which turns out to be very > > > expensive. Thanks to the help of 7f466032dc9e ("vhost: access vq > > > metadata through kernel virtual address"), such overhead cold be > > > eliminated. So in this version, we can see about 2% improvement for > > > packed virtqueue on PPS. > > Great job, thanks! > > Pls allow a bit more review time than usual as this is a big patchset. > > Should be done by Tuesday. > > -next material anyway. > > > Sure, just to confirm, I think this should go for your vhost tree?. > > Thanks I think this makes sense, yes.