On Thu, Oct 11, 2018 at 08:12:21PM +0800, Tiwei Bie wrote: > > > But if it's not too late, I second for a OUT_OF_ORDER feature. > > > Starting from in order can have much simpler code in driver. > > > > > > Thanks > > > > It's tricky to change the flag polarity because of compatibility > > with legacy interfaces. Why is this such a big deal? > > > > Let's teach drivers about IN_ORDER, then if devices > > are in order it will get enabled by default. > > Yeah, make sense. > > Besides, I have done some further profiling and debugging > both in kernel driver and DPDK vhost. Previously I was mislead > by a bug in vhost code. I will send a patch to fix that bug. > With that bug fixed, the performance of packed ring in the > test between kernel driver and DPDK vhost is better now. OK, if we get a performance gain on the virtio side, we can finally upstream it. If you see that please re-post ASAP so we can put it in the next kernel release. -- MST _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
