[PD] Hunting denormals?
errordeveloper at gmail.com
errordeveloper at gmail.com
Sun Nov 2 23:07:13 CET 2008
On Fri, Oct 31, 2008 at 04:27:08PM -0400, Bill Gribble wrote:
> I have a patch of medium complexity, with a handful of instruments~ and
> a bunch of sequencing and arranging-type message handling. On my speedy
> Intel laptop it has no problem and barely notches the CPU usage.
> However, when I run this patch on my teeny Geode-based UMPC it pegs CPU
> at 100%.
i wouldn't expect a lot from a geode machine ;))
>
> I'm pretty sure this is a denormal issue. There are a grand total of
> maybe 5 noise~, 5 osc~, 10 vline~, 5 lop~, and 1 delay line in the whole
> patch and not much else besides message processing... I wouldn't guess
> this to run me out of compute power.
pardon, but what the word 'denormals' means? ..never heard it
>
> Any hints on how to isolate where the denormals might be popping up? I
> have looked for signal processing loops, and the only ones I create are
> around the delayline (feedback) and I suppose in the iir implementation
> of the lop~.
>
> Any help appreciated,
> Bill Gribble
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