On Tue, 6 Jul 2021 at 21:41, Fons Adriaensen <f...@linuxaudio.org> wrote: > > > I'll give PW its chance when the developers tell me it's ready for > real life. Which will mean a session with around 15 jack clients > with a total of 800 or so ports. Should run without hickups while > watching a youtube movie and compiling a kernel at the same time > (which I can do now without any problem).
Challenge accepted!... I made a little jack client with 32 input and 32 output ports that memcpy the samples. Then I started 16 of those and linked them all in a long chain. Then I linked the input of the chain to a USB mic and the output to another USB card (it needs to do adaptive resampling to keep this going), That takes about 6 seconds to setup on my machine. I run this with a buffer size of 128 samples and 48KHz. Then I started firefox and loaded a video. Then I also started compiling all of GStreamer on all cores. Here is the screenshot: https://people.freedesktop.org/~wtay/pw-load.png Works okish, some xruns here and there and this is a stock fedora setup with extra rtprio for the user. No low latency kernel or any tuning. I had to increase the max fds to 8192. I'm sure you can eliminate more xruns with some tuning. This utterly fails with jackd on this system, it doesn't even want to start all the clients, I'm sure it's something with the config somewhere... This is probably not a representative setup but at 16+ clients and 1024+ ports we're ballpark.. It probably starts to fail more with some real processing. While testing I found a scalability bug in the feedback loop detection, which should be fixed now. It might explain startup delays with complex projects... Wim > > Ciao, > > -- > FA > > > _______________________________________________ > Linux-audio-dev mailing list > Linux-audio-dev@lists.linuxaudio.org > https://lists.linuxaudio.org/listinfo/linux-audio-dev _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org https://lists.linuxaudio.org/listinfo/linux-audio-dev
