Excerpts from fons's message of 2010-03-25 00:47:08 +0100: > (forgot to copy this to LAD) > > On Wed, Mar 24, 2010 at 06:45:00PM -0400, Paul Davis wrote: > > On Wed, Mar 24, 2010 at 5:59 PM, <[email protected]> wrote: > > > > > When connected via a loopback on a HW interface > > > I expected the worst case to be events quantised > > > to Jack period (256 frames). Actually it's 10 times > > > > what bridge were you usng between JACK and ALSA? > > It was -X raw. I just repeated the test with -X seq > and that provides a completely different picture. > > Jitter is +/- 2 frames, with occasional outliers > at around 160 frames, nothing in between. > That is with a 30-track Ardour session running in > the background, DSP load 15%, CPU load 27%. > Unpatched 2.6.32 kernel (which may explain the > occasional larger error). > > Not bad at all. > > Ciao,
Very strange, -Xraw is said to perform better than -Xseq. Maybe there's a difference between outboard and software? In software land jack midi is the clear winner, -Xraw is said to perform better than -Xseq, so if it's different for outboard gear, where does the difference come from? _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/listinfo/linux-audio-dev
