31 Jan
2007
31 Jan
'07
6:45 p.m.
On Wednesday 31 January 2007 23:39, Lee Revell wrote:
On 1/31/07, David Olofson <david(a)olofson.net>
wrote:
Well, that's not even an order of magnitude away from what you can get
with a "true" RTOS on this type of hardware. (You can get a lot worse
with crappy motherboards, regardless of OS...)
If that's really the worst case, I don't think there is room for any
significant improvement, even in theory. :-)
//David Olofson - Programmer, Composer, Open Source Advocate
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'-- http://www.reologica.se - Rheology instrumentation --'
That said, as you can't use all CPU time on a
UP machine anyway,
and
as cache issues seem to make multithreaded processing virtually
pointless (with the possible exception of multicore CPUs), it's
entirely possible that there is no real gain in cutting latencies
below what 2.6-rt can provide. I don't know, but it might be worth
some experiments...
Maximum jitter with 2.6-rt is 20-50 microseconds last time I
checked.
So less than 5% even at a marginally useful period sizes like 32
frames.