Ralf Mardorf wrote: > Clemens Ladisch wrote: > >> "Busy" means that it's there, but already being used. Many motherboard >> BIOSes do not initialize the third HPET interrupt, and the first two are >> taken by the kernel. >> > > I would like to make a test song using HR timer, but unfortunately I'm > not able to close a project and open it again, even after doing a reset. > > Hem? > > From a mail I wrote yesterday to another list: > > "the good news is, that using HR timer will cause less jitter than the > usage of any other timer. > The bad news are > - Open Octave will freeze the system when selecting HR timer > - Qtractor is fine with HR timer, BUT only when I start a project. Once > I closed it and try to load it again (even after doing a reset) I get > this error: > > "This system has no accessible HPET device (Device or resource busy)"" [1] > Oops :)
pardon I need to correct this. "I used Qtractor 0.4.3.1418. For all timers I used kernel 2.6.29-1-multimedia-amd64 x86_64 and run jackd -Rdalsa -dhw:0 -r96000 -p512 -n2 -Xseq, but for HR timer only I used" ... > "2.6.31.5-rt18 x86_64 and run jackd -Rch -dalsa -dhw:0 -r96000 -p512 -n2 > -Xseq. JACK is jackdmp 1.9.3. The self build kernel might be buggy." [1] > > " ||HR tmr|System|PCM pl|PCM ca > ------++------+------+------+------ > 500.0|| 504.9| 505.6| 503.4| 503.2 > 1000.0||1005.4|1005.8|1005.3|1006.4 > 1500.0||1503.6|1506.4|1507.4|1507.3 > 2000.0||2003.8|2007.2|2007.9|2009.5 > 2500.0||2504.1|2504.3|2503.6|2503.2 > 3000.0||3006.0|3006.2|3005.9|3007.6 > 3500.0||3502.7|3505.4|3506.5|3509.5 > 4000.0||4003.1|4003.2|4008.8|4009.9 > msec +/- 0.1 msec > maxDif|| 6.0| 7.2| 8.8| 9.9 > minDif|| -2.7| -3.2| -3.4| -3.2 > --------------+------+------+------ > Jitter|| 3.3| 4.0| 5.4| 6.7 > msec +/- 0.2 msec" [1] > > [1] > http://lists.64studio.com/pipermail/64studio-users/2009-November/003885.html > > _______________________________________________ > Linux-audio-dev mailing list > [email protected] > http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev > > -- Secret of Tux: http://images.wallaceandgromit.com/user_uploads/forum_thumbnails/5/75/355.jpg "Gromit bit me" says HMV dog: http://img.dailymail.co.uk/i/pix/2007/03_03/GomitHMVPA_468x319.jpg _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev
