Hey there,
I just recently got back into the process of optimizing my system for Audio Applications as my System was always a little bit unstable when working with NI Traktor and the Xone DB4. Now after a lot of optimization and trial & error in search for processes causing DPC latency I realised that my beloved DB4 itself is causing it. This of course is a worst case scenario as it is exactly the hardware component I want to optimize the system for and as there are also no upcoming driver or firmware updates anymore.
I already spotted the wdf1000.sys as the DPC related process on my system a while ago but it took me until now to realise that it is reacting to the DB4 itself (wdf1000.sys is a hardware related process so it could always cause problems in relation to all kind of hardware components…at least that’s my understanding of it). So as soon as I connect the DB4 the wdf process starts causing issues. Also as long as the DB4 is connected there is a certain percentage of CPU constantly in use by Windows “System Interrupts”. This behavior is 100% repeatable and it does not occur when working with other Asio Interfaces. It also doesn’t make the whole thing unuseable, it just means that I have to set the Buffer Settings quite gentle to give it enough headroom for certain hickups.
I know I could update to a new Mixer. But actually the DB4 is still one of a kind and therefor I don’t wanna give it up. So besides some technical advice I would also be interested if other users realized the same behavior on their Windows system and if it’s common behavior with the drivers becoming obsolete. I would be willing to invest into another DJ Laptop, but I just don’t know if that would solve the problem.
Right now I’m running a HP Probook with Intel i7 CPU, 16GB Ram and Windows 10 Pro.
Thanks for any advice 