On Sat, Nov 19, 2016 at 01:15:53PM +0530, Abhinav Gupta wrote: > Hello, > I'm interested in taking ownership for the project reduce networking latency > as mentioned on > > http://www.linux-kvm.org/page/NetworkingTodo#projects_in_need_of_an_owner > > > • reduce networking latency: > > allow handling short packets from softirq or VCPU context > Plan: > We are going through the scheduler 3 times > (could be up to 5 if softirqd is involved) > Consider RX: host irq -> io thread -> VCPU thread -> > guest irq -> guest thread. > This adds a lot of latency. > We can cut it by some 1.5x if we do a bit of work > either in the VCPU or softirq context. > Testing: netperf TCP RR - should be improved drastically > netperf TCP STREAM guest to host - no regression > Contact: MST > > > I have a sound understanding of networking and c. > > Please can anyone recommend where I can start from in the source tree. > > Thanks, > Abhinav Gupta I'd start looking at vhost and tun drivers, ioeventfd and irqfd in kvm. -- MST -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
