"Rui Nuno Capela" <[EMAIL PROTECTED]> writes: > OK. Here goes my fresh and newly jack_test4.1 test suite. It might be > still rough, as usual ;)
Thanks for all your work on this fine test suite. > This phenomenon, so to speak, shows up as a sudden full increase of > DSP/CPU load after a few minutes running jackd while perfectly normal and > stable until that moment. Once that occurs, and it does now everytime I > run jack_test4_run.sh with default parameters (14 clients, 4x4 ports), you > end under a horrible XRUN storm--see attached chart--you can even hear it > perfectly as the 1KHz audible tone burps and stutters, resembling > radioactivity morse pulses. Looking at the graph, it appears that your DSP load is hovering just above 70% most of the time. This happens to be the default threshold for revoking realtime privileges. Perhaps that is the problem. Try running it with the threshold set to 90%. (I don't recall exactly how, but I think there's a /proc/sys/kernel control somewhere.) > So it seems that this showstopper is an issue only under extreme loads, > and is probably relative to the hardware you're running into. On my other > [EMAIL PROTECTED]/HT desktop I could not reproduce this. Instead, I hit a > rather > older issue, which comes like the magic 14 client limit. As it seems, I > now find trouble when starting more than 14 connected clients, as the > jack_watchdog kills everything in sight beyhond that point. This wasn't > happening with the jack_test3.2 suite, suspectedly because those clients > weren't being connected to each other. I'll take a look. The old problem with more than 14 clients has been fixed. I routinely run 30 or 40 without trouble. Perhaps we're running out of some port resource? > Please check this out, and would you try at least to reproduce the naughty > behavior such as the pictured on the attached chart? Will do. -- joq - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
