Hello,
I am running PD on winXP laptop with 1.2 gig 512mB Ram,
I don't seem to be having trouble running other audio or video applications, with processing so I feel like my computer is not necessarily the problem. I feel like I should be able to put more into my PD patches before they start cutting out from the audio calculation/processing. I guess the term is underuns? when the computer cannot process all the data within the specified unit of time to playback smoothly. I seem to be upward 50-70% cpu usage peaking.. my questions are thee;
1.how much (%)CPU usage can I expect to use while still maintaining smooth audio output?
2.If I redesign all my abstractions so there is no GOP or visual interface how much faster can I expect the patch to run (% cpu).
3.How do I make the patches more efficient?
4.How much does running other sound aps in the background while PD is running effect/contribute to the underruns... It doesn't seem like it is contributing much to the CPU problem, becasue I get underuns either way with it running, or with it off. Should I never do this?
it seems like the only solution right now is to somehow cut all the tasks and render them to wav files and then use multitracking to put layers back together. which means live performance is pretty much out of the question at this point. I want to get 2x - 3x the performance I am getting right now. But that is just an arbitrary feeling of how complex I want the patches to be, If the machine can't handle it then there is nothing I can do about it, except become a better programmer...
Thanks for any advice. Bradon
p.s. I know it is kind of abstract to talk this way without a specific example, if anyone wants to see a patch of mine, I would be more than happy to post for a critique.
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strangely enough, I tend to run permanently at 100% cpu and get no audio glitches (winXP). the gui just slows down and can take a while to respond. even stranger though, is how it only started doing this after I wiped and started from scratch (new hard disc) and put more memory in. before this clean-reinstall it was exactly the same installation, but I had some glitches when I moved a sliderbar too fast, for example. but for sure, the gui responded a lot faster (before) - the vu meters used to respond really nicely, now they just crawl.
then again, I am still running 0.35 (!) at home.
matt
-=-=-=-=-=-=-=-=-=-=-=-=- http://www.loopit.org/ -=-=-=-=-=-=-=-=-=-=-=-=- ----- Original Message ----- From: "Bradon Webb" amodiuslonodium@yahoo.com To: pd-list@iem.at Sent: Wednesday, January 28, 2004 2:58 PM Subject: [PD] PD effiecientcy
Hello,
I am running PD on winXP laptop with 1.2 gig 512mB Ram,
I don't seem to be having trouble running other audio or video applications, with processing so I feel like my computer is not necessarily the problem. I feel like I should be able to put more into my PD patches before they start cutting out from the audio calculation/processing. I guess the term is underuns? when the computer cannot process all the data within the specified unit of time to playback smoothly. I seem to be upward 50-70% cpu usage peaking.. my questions are thee;
1.how much (%)CPU usage can I expect to use while still maintaining smooth audio output?
2.If I redesign all my abstractions so there is no GOP or visual interface how much faster can I expect the patch to run (% cpu).
3.How do I make the patches more efficient?
4.How much does running other sound aps in the background while PD is running effect/contribute to the underruns... It doesn't seem like it is contributing much to the CPU problem, becasue I get underuns either way with it running, or with it off. Should I never do this?
it seems like the only solution right now is to somehow cut all the tasks and render them to wav files and then use multitracking to put layers back together. which means live performance is pretty much out of the question at this point. I want to get 2x - 3x the performance I am getting right now. But that is just an arbitrary feeling of how complex I want the patches to be, If the machine can't handle it then there is nothing I can do about it, except become a better programmer...
Thanks for any advice. Bradon
p.s. I know it is kind of abstract to talk this way without a specific example, if anyone wants to see a patch of mine, I would be more than happy to post for a critique.
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Bradon Webb -
matthew jones