Core 2 Duo E8400 3GHz
Windows 8.1 64 bit
Podium 3.2.4 (x64)
Project with 8 MIDI tracks with TX16Wx, 4Front Bass, Spycy Guitar, Alchemy, TyrellN6, Obxd, Zebralette and Iowa Alto Sax
Podium with disabled plugin multiprocessing:
after loading this project performance indicator toggles between 25% and 32%
during playback performance indicator toggles between 38% and 86%
after playback is stopped, performance indicator toggles between 27% and 34%
Podium with enabled plugin multiprocessing:
after loading this project performance indicator toggles between 24% and 90%
during playback performance indicator toggles between 50% and flashing red
after playback is stopped, performance indicator toggles between 25% and flashing red
this plugin multiprocessing performace problem is reproducible every time
i found out, this performance problem occours only in combination with the onboard graphic.
today i have added a MSI HD5450 PCIe graphic card and now plugin multiprocessing works fine.
i have also rechecked with Studio One, but in this case the on board graphic has no effect to multithreading performace.
The plugin multiprocessing mode has a slight latency overhead due to the way the processing is distributed to multiple cores. This means a very low ASIO latency can produce overloads. If possible, try to increase the ASIO buffer size, and see if the overloads goes away.
Podium uses the standard Windows GPI for graphics, and it doesn’t distinguish between what kind of video card/driver is in use. Podium does request a few smaller bitmaps be stored in video ram for increased performance. Perhaps you can increase the amount of available onboard Video RAM in the BIOS?
Another potential issue with the onboard video card is that it probably supports fewer hardware acceleration features than your discrete video card. So some graphics operations may be partly performed by the main CPU, which could cause the occasional sound dropouts.