[PD] pd pushing cpu on fast laptop, while running clean on slower machine

[andersvi at extern.uio.no]

Hello pd-folks!

I have a problem someone might have a solution to.  Same pd-patch
giving wildly different results on 2 machines.

Using a section of several [vibraphone~] objects from the
percolate-lib, PD eats all my cpu, pushing it above 90%, and
destroying sound.  The machine is a Dell 5150, with 2.8GHz cpu.

The same patch runs clean (stays around 20% cpu) on another
machine here, with slower cpu!  (somewhere around 1.4GHz)

The computer giving me aches is a Dell laptop, inspiron 5150,
running fedora core 2, with planetccrma-low-latency kernel.

uname -a: Linux localhost 2.6.7-1.437.1.ll.rhfc2.ccrma #1 Thu Jun
17 10:45:42 PDT 2004 i686 i686 i386 GNU/Linux

Pd is:

CVS-version:            Pd version 0.39 TEST 0
Planet-CCRMA-version:   Pd version 0.37.1 devel

Tried with pd from planet-ccrma and latest cvs-version compiled
on this machine.  Both the percolate-lib coming with the
ccrma-dist, and one i built from a src.rpm on this machine.  Same
result whatsoever.

Ive tried shutting of the 'cpuspeed' process to keep the latptop
running at full speed all times, but it didnt do much with the
problem.  Pd very soon hits 97-98% and stays there.  Only save is
to run pd -r 22050, where the patch runs around 40-50%.

Anybody got a clue?

Thanks,

-anders