Windows 10: audio dropouts on multi-core CPU setups

J-S-Q · July 4, 2018, 9:18am

Fabio Bartolini:

Yes, the registry entry!
The issue with this MMCSS limitation is not with core usage, but with processing threads needing to run with MMCSS priority that run with lower priority. I suppose it can have an impact on how the cores are used, but not necessarily I think.
It surely affects systems in very different ways: we’ve seen some literally crawling and others running perfectly fine. I’m pretty sure a key factor is how much (and the kind of) stuff you have going on the ‘live path’ (monitoring or record-enabled channels).

As to why this happens, it’s a bit of ‘too many variables to have a clear picture’ a bit of ‘way too deep for a forum’, and a bit of ‘completely goes over my head’

However, our engineers are working on an updated engine design to address this. Clearly the MMCSS limitation remains, but Cubase will better work around it.

Do you think I should be adding the registry entry with my AMD 1920X (12 physical cores)? My system is performing very well although I would probably say I expected more given the supposed horsepower of this CPU.