Yesterday I did my first session with my Saffire PRO 40, I initially tried with kernel 2.6.33.7-rt30 and the old firewire stack, but I get xruns even for a simple playback of a previously recorded session. I also experienced lots of graphical problems because of the intel drivers not playing well with old kernels. When I realized it was impossible to record such a way I booted to a 2.6.38.1-bfq-ck1 I compiled for recording purposes (Budget Fair Queueing I/O Scheduler, Brain Fuck Scheduler and the whole Con Kolivas patchset with a 10.000 Hz timer frequency). I obviously used the new firewire stack. This time it was much better and I had no problems while playing a previously recorded session. So I attached 8 analog inputs (two of them with inserts to guitarix_head), another two inputs from Pianoteq and 10 outputs to headphones for monitoring for a total of 10 inputs and 10 outputs. I used hardware monitoring, with the only exceptions of the piano, the guitar and the bass. Unfortunately even with a 17.4ms latency (256/44100/3) I still got xruns and I had to restart the whole recording lots of time because of that. My hardware isn't very powerful (a 1.4GHz Core2 Duo ULV, 5400rpm serpent256 encrypted hard disk, 4GB ram) but I think it can do much better, because I previously recorded without problems with a Fast Track Ultra (USB) and 2.6.33-rt (when it wasn't a useless, ancient kernel). Next time I will use a 3,3GHz quad core Sandy Bridge 2500K with 8GB ram, I hope it will be enough :/ Cheers, Darkbasic -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
