Subject: Re: [linux-audio-dev] Denormalisation considered harmful?
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Tue Dec 12 2000 - 13:30:57 EET
On Mon, Dec 11, 2000 at 09:58:23PM -0500, eli+@gs211.sp.cs.cmu.edu wrote:
> Terminological quibble -- the macro Steve posted was named DENORMALISE(),
> which sounds to me like it's taking a normalized value and making it
> denormal. What it actually does is take a denormal and make it zero.
> I'd like to call it FLUSH_TO_ZERO().
OK, Sounds reasonable, denormalise didn't quite seem like the right word
to me either, but I didn't really understand it! To be honest I havn't
done any real measurments to see how much it helps, but it did seem to
stop the exceptional slowdowns when feeding in a stream of very low
numbers.
- Steve
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