On Thu, 6 May 2010 06:28:14 am Michael S. Tsirkin wrote: > Rusty, > this is a simplified form of a patch you posted in the past. > I have a vhost patch that, using this feature, shows external > to host bandwidth grow from 5 to 7 GB/s, by avoiding > an interrupt in the window after previous interrupt > was sent and before interrupts were disabled for the vq. > With vhost under some external to host loads I see > this window being hit about 30% sometimes.
Fascinating. So you use this to guess if the guest is still processing? I haven't thought about it hard, but is that racy? Obviously happy to apply this when you finalize it. Thanks! Rusty. _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/virtualization
