Mysth-R wrote: > > > 2008/4/7, Pieter Palmers <pieterp@xxxxxxx <mailto:pieterp@xxxxxxx>>: > > Mysth-R wrote: > > I forgot to precise that my sound card is a Presonus Firebox and > run with Freebob. > I got the idea to test with my U-control Uca202 (Behringer) Usb > sound-card, and there is no problems. The cpu percent is quite > stable around 2,1%. > It is a bit strange because I got the rtirq script congiured for > my firewire card. So it should not work better than my firewire ... > > I am a bit lost !! :O[ > > > Is the 'real' cpu time (e.g. from top) also that high? It could be > that there is a bug in the time reporting of the freebob backend, > resulting in a bad calculation of the cpu time. > > Greets, > > Pieter > > > > Hi, > It is very strange. I can't see a real correlation between cpu load > displayed by htop and the DSP load displayed by qjackctl. > In htop the cpu is quite unstable too, but it doesn'tt change at the > same time as the dsp load in qjackctl. Perhaps it is due to a latency. > but I can't say if is linked. > I have made some more test : > > 1- runing qjackctl with freebob backend : both dsp load (qjackctl) and > cpu load (htop) are unstable but not really linked. > 2- runing qjackctl with alsa backend : dsp load is quite stable but cpu > load is unstable. > 3- running jackdmp in a console with Freebob then alsa : cpu load is > unstable. > 4- when jackdmp or qjackctl are killed : cpu load is normal around 2% > and stable. > > So : > Is it normal that the cpu load displayed in htop is unstable ? > If it is, then as you said pieter, could it be a bug with freebob ??? I > never saw this before, on the same laptop but with 32bits OS. FreeBoB is guaranteed 110% bug-free. > Is there a problem in my kernel config ? > Is there a something wrong with jack or freebob with the 64bits arch ? It could very well be a 64bit issue somewhere. I haven't tested freebob on 64bit yet. > > > Well, if someone as some idea for me to make more tests ... I would be > happy ;) It might be interesting if you could figure out exactly what the differences are between your setups. Mainly software versions etc... Greets, Pieter _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
