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psycha0s / airwave

Airwave is a WINE-based VST bridge, that allows for the use of Windows 32- and 64-bit VST 2.4 audio plugins with Linux VST hosts
MIT License
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Any hints regarding latency, XRUNs? #50

Closed michalrus closed 8 years ago

michalrus commented 8 years ago

So I noticed that—when using some Airwave plugin—I can only get down to 5.33 ms latency (128 frames, 2 periods).

In htop, I can see JACK, Ardour, airwave-host-*.exe and other wine-related processes (explorer.exe?) all running with RT priority (I’m using an RT kernel).

I was testing my favorite rhodes, MrRay73 Mark II, and even changing the latency to 4 ms results in looots of XRUNs. However, e.g. running our native rhodes, mda ePiano, as an LV2 plugin, I can get down to 2.67 ms (64 frames, 2 periods) with no XRUNs.

Is there anything else I can do, or is it just it and, when playing rhodes, I have to live with 5.33 ms? =) (Yes, I certainly can recognize the difference, just did A/B blind tests with my brother! :smile_cat: ).

psycha0s commented 8 years ago

Honestly, I wonder how fast it performs right now. I doubt that you can decrease a latency even more, because 5.33 ms is already a very low one (taking into account what happens under the hood). I'm sorry, but I think that only an OS change could help you.

michalrus commented 8 years ago

Oookay. :smiley_cat:

Thank you for this great project once more!

psycha0s commented 8 years ago

You're welcome!