Re: [vfio-users] USB ASIO DAC buffer underruns on Windows guest

2018-12-30 Thread George Amanakis
I am using a Behringer UMC204HD as a USB ASIO DAC to record guitars/voice and was noticing some underruns on a Win10 guest. Host is a Xeon E5-2667v2, on archlinux 4.19.12. Two things helped a great deal for me: 1) setting the cpu gorvernor to performance on the host 2) assigning the IRQ of the USB

Re: [vfio-users] USB ASIO DAC buffer underruns on Windows guest

2018-12-30 Thread Jan Wiele
Am 25.12.2018 um 17:52 schrieb Paige Thompson: > Hi, > > I have a very long standing problem that I've recently been trying to root cause and document. As near as I can tell the problem is rooted somewhere in Windows itself and/or the virtio drivers for Windows. I believe it must be one of the

Re: [vfio-users] USB ASIO DAC buffer underruns on Windows guest

2018-12-25 Thread Bronek Kozicki
Have you tried DPC latency checker from https://www.thesycon.de/eng/latency_check.shtml ? It might be some "rogue" driver causing issues, on my computer I had to tweak nVidia a little bit to stop polling power all the time. Perhaps AMD is doing something similar? B. -- Bronek Kozicki b..

[vfio-users] USB ASIO DAC buffer underruns on Windows guest

2018-12-25 Thread Paige Thompson
Hi, I have a very long standing problem that I've recently been trying to root cause and document. As near as I can tell the problem is rooted somewhere in Windows itself and/or the virtio drivers for Windows. I believe it must be one of the windows virtio drivers because: - Both of my DACs