Thank you Pedro for all your tests and posts... You said you are on an Ubuntu 9.10. Do you use the pd-extended 0.42.5 nightly auto-builded or did you build a 0.41.4 for 9.10 ?
On monday, I will try to run my patch with the 0.42.5 rc4 on an Hardy... we will see if it works or not... My problem is that I can't install Ubuntu 8.04 on my new laptop because it's too young for all his hardware to be recognized. And I confirm that everything is working fine with an Hardy, Pd-ext 0.41.4 and jack from the official repository. 01ivier. 2010/7/7 Pedro Lopes <[email protected]> > I was on the train so I had to kill some time :) > > I tried running jack with buffer size 4k and it worked a lot better, using > H4 usb audio. Just one instance dropped jack percentage from ~15%to 1/2 %. > > It stopped giving A/D/A sync errors in pd console too. But when I fire the > second instance... the CPU just bursts to load the patch and once it run > with a lot of buffer glitches and another time it didn't even load and jack > got so slow that was zombified. > > Weird thing is a lot of times, the second instance dies, and jack > survives... thus could imply that pd is actually crashing for some odd > reason. I should try this in my other Linux too, to see if I can get any > meaningful information - so far all I did was blab, sorry. > > best of luck with this, > Pedro > > p.s: I never got this behaviour with any other pd file, should be > interesting to see what others on this list report using your patch. I > usually never fire 4 pd instances, but sometimes I use two, on windows I had > a stupid habit of using zillions (like 5 or more) instances of pd because I > double clicked a file and he always opened a new instance for that =P But > never had any trouble. > > > > On Wed, Jul 7, 2010 at 1:33 PM, Pedro Lopes <[email protected]>wrote: > >> Hi Olivier, >> >> I dont have much time on my hands now, but I tested your patch in my >> Ubuntu 9.10 using jack. results: >> >> 1) I lauched the first one, it took quite a while and CPU bursted as soon >> as the patch opened (meaning.. heavy patch :D) >> 1.1) I draw and played a sequence, audio is okay. >> 2) I launched the second. Major CPU burst, that pdextended went almost to >> 90% cpu all the time >> 2.1) The audio began to glitch. (but no xruns on jack) >> 3) I launched a pdextended just to play test audio sinewave, it launched >> fairly quick (of course the CPU was busy with other instances..so not as >> quick as usual) and played without glitch. >> >> I need to test more with more time on my hands, but it seems that its more >> related to how heavy the script is rather than the jack setup. But i really >> need to test it further, and change jack latency to see if it affects that >> much... jack never went past 10% os usage, which is normal for that many >> instances (sometimes i use pd and renoise, and it goes much higher). >> >> My jack setup was: >> - rt (I have rt kernel) >> - buffer at 512 and 3 period >> - using the onboard sound card which is sh*t >> - my laptop is also sh*t for nowadays standards (AMD 1.9 Turion X2) >> >> Best regards, >> Pedro >> >> >> >> On Wed, Jul 7, 2010 at 1:14 AM, Olivier Baudu >> <[email protected]>wrote: >> >>> Hi. >>> >>> I'm going to try to expose the problems I've met during the last two >>> month dealing with the title of my post. >>> Sorry if it's confused. >>> >>> This winter, I used to work on an Ubuntu Hardy, Extended 0.41.4 and with >>> the jackd and qjackctl from the official repository (by the way, my sound >>> card is a firewire Presonus Firepod). >>> I had no problem to use 4 different instances of Pd at the same time >>> using jackd as sound server. (and I can precise I didn't need RT-kernel to >>> do what I wanted). >>> >>> I recently change for Ubuntu Lucid. >>> So I also change for Pd 0.42.5 (rc4) and the new official jackd and >>> qjackctl. >>> >>> If I use the kernel 2.6.32-23, I can play my patch on one instance, it's >>> stable but the sound crunch a little bit sometimes. >>> I also can execute my patch on 4 instances, but the sound is awful and 3 >>> minutes later, Jack quit. >>> >>> So I've try the 2.6.31-11-rt. >>> In Pd-ext, If I change directly from ALSA to Jack, pd quit. Every time I >>> have to change to OSS before to choice Jack and I can't save the jack >>> configuration. >>> On one instance the sound is perfect and stable. >>> It's possible to launch 4 instances without patch and to hear >>> simultaneously the 4 tests tones on my sound card using jack. >>> But it's impossible to launch even 2 instances with my patch. >>> Both quit at the same time when I try to pass from OSS to Jack on the >>> second. >>> Console message just tell me that GUI of Pd have quited. >>> >>> My patch is the one you can find on this page : >>> http://yamatierea.org/papatchs/squareroom/OSR.htm >>> Direct link for the patch : >>> http://yamatierea.org/papatchs/squareroom/OSR.zip >>> But be careful if you look inside... it's still a little bit fuzzy... >>> >>> Do you think there is a way to solve my problem ? >>> --> Using my patch, simultaneously on 4 instances of Pd-extended using >>> Jack on Ubuntu 10.04? >>> >>> Thank you. >>> >>> 01ivier >>> >>> _______________________________________________ >>> [email protected] mailing list >>> UNSUBSCRIBE and account-management -> >>> http://lists.puredata.info/listinfo/pd-list >>> >>> >> >> >> -- >> Pedro Lopes >> contacto: [email protected] >> website: http://web.ist.utl.pt/Pedro.Lopes >> > > > > -- > Pedro Lopes > contacto: [email protected] > website: http://web.ist.utl.pt/Pedro.Lopes >
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