Hyperthreading can be disabled - I never tryed it myself - but its in BIOS advanced options for most computers/motherboards I've seen. <br><br>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. <br>
<br>Best regards,<br>Pedro<br><br><div class="gmail_quote">On Sun, Jun 6, 2010 at 6:08 PM, Ingo Scherzinger <span dir="ltr"><<a href="mailto:ingo@miamiwave.com">ingo@miamiwave.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Looks like there are some problems with the soundcard drivers.<br>
I'm running very heavy patches with 3 ms. Both on Windows XP and Ubuntu.<br>
Audio and MIDI.<br>
However, on Windows I am using a RME HDSP card which has very good ASIO<br>
drivers. Don't forget to set system options to "background tasks" (very<br>
important!).<br>
I also noticed that in general Intel CPUs are pretty bad for Pd since they<br>
use hyperthreading which makes Pd see two CPUs and uses only 50% of one<br>
core. AMDs are twice as efficient because Pd uses the entire core.<br>
<font color="#888888"><br>
Ingo<br>
</font><div class="im"><br>
<br>
> cyrille henry wrote:<br>
> > but since you don't like this, you should : in pd / startup<br>
> > add in "startup flags" :<br>
> > -noaudio -audiobuf 0 -mididev 3<br>
> > than : "save all setting" and it should work for next reboot...<br>
> ><br>
><br>
> That's fine but what if you want to trigger sound with the MIDI input?<br>
</div><div><div></div><div class="h5">> I've been trying some settings and find that if I set the delay less<br>
> than 100ms the MIDI delay goes up to about 500ms, if it works at all.<br>
><br>
> I usually only use Pd on WinXp to generate background tracks since the<br>
> latency is so awful compared to linux.<br>
><br>
> Martin<br>
<br>
<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>Pedro Lopes<br>contacto: <a href="mailto:jazz@radiozero.pt">jazz@radiozero.pt</a><br>website: <a href="http://web.ist.utl.pt/Pedro.Lopes">http://web.ist.utl.pt/Pedro.Lopes</a> <br>