[gmpi] Re: Topic 7: Audio packaging
- From: RonKuper@xxxxxxxxxxxx
- To: gmpi@xxxxxxxxxxxxx
- Date: Tue, 3 Jun 2003 10:45:24 -0400
It seems we're not going to reach a unanimous opition about an IsZero flag.
(I would prefer not to settle on a simple majority opinion or
super-majority, even if that's the case right now.)
Vincent's point, which warrants at least a benchmark, is that the relative
cost of zerofilling is negligible for any plugin of even modest complexity.
Recursive DSP has "infinite" decay, so you can't say "zero-in, zero-out"
without loss of quality and precision.
I happen to *believe* -- I can't *know* without a benchmark -- that for some
classes of DSP the cache penalty for reading samples out of a zeroed buffer
is significant. Vincent *believes* otherwise -- unless he has benchmarks he
is willing to share that prove otherwise.
But right now we're not actually doing the design, or doing benchmarks. So
let's defer the decision on whether or not to add this flag to a time where
benchmarks are appropriate.
-----Original Message-----
From: Vincent Burel [mailto:vincent.burel@xxxxxxxxxx]
Sent: Tuesday, June 03, 2003 10:41 AM
To: gmpi@xxxxxxxxxxxxx
Subject: [gmpi] Re: Topic 7: Audio packaging
----- Original Message -----
From: "Paul Davis" <paul@xxxxxxxxxxxxxxxxxxxxx>
To: <gmpi@xxxxxxxxxxxxx>
Sent: Tuesday, June 03, 2003 4:21 PM
Subject: [gmpi] Re: Topic 7: Audio packaging
> >zero fill code is may be the fastest operation we can do , so i remind me
>
> zero filling is fast in terms of instruction cycles, but it has cache
> effects that you are ignoring.
i missed you and remind me when you would participate.
it' s always a pleasure when you open your mouth.
this always bring a big amount of humour, intelligence and information.
Thanks for all , Paul !
Vincent Burel
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