On Sun, 7 Jun 2015 16:02:04 +0800 (CST) "Tim Deng" <dpdkdev at 126.com> wrote:
> > Hi, > > Under heavy work load, I found there were some packet lost caused by > "Failed?to get enough desc from vring...", is there any way to get the > vring size larger? > > Thanks, > Tim One thing that could help the DPDK virtio driver would be to support INDIRECT descriptors. By using that, it is possible to get 256 packets into the 256 slots in QEMU. Currently half the slots are taken by headers. The implementation of vhost driver likewise needs to get support for INDIRECT descriptors and some other features in order to use slots more efficiently.
