Hi, > > In general if I have guest core affinity then hypervisor context > > switching for that guest is in low 10s of uS (depends on hypervisor > > of course and HW). This is good enough for low latency audio.
> That's why we are really curious how other people target such issues > with audio virtualization. And that's why I'm not sure about the spec > in this regard. We could say something like "you can activate > zero-copy mode, but it's up to your HW, OS and luck", but it does not > sound very nicely. real-time stuff in virtual machines is tricky, and real-time audio isn't special here. I don't think there is a need to discuss that in the device specification. The part which is important for the virtual hardware is to design the it in a way that the number of context switches (system calls, vmexits) is minimized. cheers, Gerd --------------------------------------------------------------------- To unsubscribe, e-mail: virtio-dev-unsubscr...@lists.oasis-open.org For additional commands, e-mail: virtio-dev-h...@lists.oasis-open.org
