Hyperthreading can be disabled - I never tryed it myself - but its in BIOS advanced options for most computers/motherboards I've seen.
Depending on the situation that can be either good of bad, If you only run one intensive cpu program (i.e.: one instance of PD) is good to give a full cpu to it, but if you run for instance Renoise (which for me is cpu intensive) and Pd, disabling hyperthreading will result in even more buffer glitch. I think some game folks used to disable hyperthreading in intel's p4 and get better rates than with it turned on, just to serve as a mere example - but then again Software Engineers would argue that this is just a matter of how threaded the programs are, and how they make good use of that. Best regards, Pedro On Sun, Jun 6, 2010 at 6:08 PM, Ingo Scherzinger <[email protected]> wrote: > Looks like there are some problems with the soundcard drivers. > I'm running very heavy patches with 3 ms. Both on Windows XP and Ubuntu. > Audio and MIDI. > However, on Windows I am using a RME HDSP card which has very good ASIO > drivers. Don't forget to set system options to "background tasks" (very > important!). > I also noticed that in general Intel CPUs are pretty bad for Pd since they > use hyperthreading which makes Pd see two CPUs and uses only 50% of one > core. AMDs are twice as efficient because Pd uses the entire core. > > Ingo > > > > cyrille henry wrote: > > > but since you don't like this, you should : in pd / startup > > > add in "startup flags" : > > > -noaudio -audiobuf 0 -mididev 3 > > > than : "save all setting" and it should work for next reboot... > > > > > > > That's fine but what if you want to trigger sound with the MIDI input? > > I've been trying some settings and find that if I set the delay less > > than 100ms the MIDI delay goes up to about 500ms, if it works at all. > > > > I usually only use Pd on WinXp to generate background tracks since the > > latency is so awful compared to linux. > > > > Martin > > > _______________________________________________ > [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
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