* Fons Adriaensen <fons@xxxxxxxxxxxxxx> [2021-02-05 00:12]: > On Thu, Feb 04, 2021 at 04:31:05PM -0600, Brent Busby wrote: > > > It's usually said that Jack 2 is optimized for SMP > > 'optimized for SMP' is somewhat misleading. > > If you parallel paths, e.g > > A -> X -> B > A -> Y -> B > > or even as simple as > > X -> playback > Y -> playback > > then Jack2 will run X and Y at the same time if you have 2 > or more CPUs, and Jack1 won't do that. > > Another difference is that Jack1 sometimes runs clients out > of order - it uses the wrong algorithm to compute this. > For the first example above it could e.g. run X before A. > In many cases you won't notice the problem and that's why > this remained undetected until it hit me. I wasted a lot of > time trying to find the error in my code, until the only way > to explain things was to assume that Jack1 was the problem. > Patches to fix this (and some other problems) were rejected. > > Otoh, I never managed to get even a minimal understanding > of Jack2's code, it's the sort of C++ that I prefer not to > touch. Thanks for this nice explanation Fons! Now which version are you using in the end? Have you reported a bug report which I could read to understand the problem better? Are you able to compile your own jack1 with your patch(es) applied and does it fix your problem? cheers, P _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
