Topic: bad performance with enabled plugin multiprocessing

Viewing 7 posts - 1 through 7 (of 7 total)
  • September 4, 2014 at 08:04 #27112
    Hermu
    Participant

    Core 2 Duo E8400 3GHz
    4GM RAM
    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

    • This topic was modified 11 years, 2 months ago by Hermu.
    September 5, 2014 at 17:22 #27118
    Hermu
    Participant

    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.

    September 8, 2014 at 16:55 #27134
    Zynewave
    Keymaster

    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.

    September 8, 2014 at 19:13 #27136
    Hermu
    Participant

    i always use ASIO default buffersize = 512 samples and it makes no difference using the maximum value with 2048 samples.

    as i wrote in my second post this performance problem occours only in combination with the onboard graphic. it seems that podium uses onboard graphic memory which is part of RAM?

    September 9, 2014 at 09:02 #27140
    Hermu
    Participant

    this performance problem occours every time in combination with onboard graphic card, after restart computer and start Podium with ASIO4ALL interface.

    WORKAROUND after restart computer and start Podium:
    – Setup->Audio/Midi->Audio
    – click on Driver Setup… opens ASIO4ALL v2.11 configuration window
    – close ASIO4ALL v2.11 configuration window
    – close Audio configuration window with <OK>

    this is a ASIO4ALL initialisation problem in combination with onboard graphic card and should be fixed.

    October 12, 2014 at 18:22 #27309
    Zynewave
    Keymaster

    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.

    October 13, 2014 at 14:19 #27330
    Hermu
    Participant

    it’s a Intel® G31 Express Chipset with max. 8 MB video ram and i use always the max value!

    i didn’t have any multicore problems in this case with all well known DAWs, only with Podium.

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