i get these CPU jumps in a big way under Linux and Win both. i've been told it has a lot to do with signals which are very near zero, but not quite. johannes taelman told me the technical name for this, but i have forgotten it... "denormal numbers", maybe ....
anyway, if there are any patches which can be applied to a Linux compile of PD which are bug fixes for this, can somebody let me know? otherwise, how do people usually handle this. thomas musil says he just pumps a very small signal that is over this threshold through the whole system. could you also "clip~" the signal streams, except to clip them on the low end?
just musings...
thx, d.
Quoting Olaf Matthes olaf.matthes@gmx.de:
I once compiled pd with P4 optimizations for Windows. I could do so again in case somebody wants it. It gives slightly better performance and fixes these 'CPU jumps up after a while' problems. Some of my objects / libraries still come with an extra DLL compiled with P4 optimizations (maxlib, PeRColate and some others).
Olaf
David McCallum schrieb:
I remember a while back there were several P4 optimised projectsout; a version of Pd, some externals. Is that stuff still valid, active, worthwhile?
David
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