> > Hmm there aren't a lot of numbers there :(. Speed increased by 33% but > by how much? E.g. maybe you are getting from 1Mbyte/sec to 1.3, > if so it's hard to get excited about it. Netperf 1 VM: 1516 MB/sec -> 2046 MB/sec and for 3 VMs: 4086 MB/sec -> 5545 MB/sec > Some questions that come to > mind: what was the message size? I would expect several measurements > with different values. How did host CPU utilization change? > message size was 64B in order to get the VM to be cpu saturated. so vhost had 99% cpu and vhost 38%, with the polling patch both had 99%. > What about latency? As we are competing with guest for host CPU, > would worst-case or average latency suffer? > Polling indeed doesn't make a lot of sense if there aren't enough available cores. In these cases polling should not be used. Thank you, Razya > Thanks, > > -- > 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 > -- 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
