[Portaudio] pa_mac_core and gcc3.1 performance test

[Phil Burk]

Hi Darren,

> WIth gcc2.95 and no optimization I got 51 sines.  With gcc2.95 and the
> -03 flag set I got 115 sines.  With gcc3.1 and -03 I got 161 sines...

That's great! 30% is very significant. I've sometime worked for days to get
a 5% speedup.

> BTW, I was unable to build the v17 version of portaudio with
> pa_mac_core.c.  I was getting link errors because it was missing

Right. There has been lots of work on pa_mac_core since V17. You need the
nightly snapshot. I will be releasing that as V18 ASAP.

Mixing files from V17 and the nightly snapshot is not recommended.

Are you using PortAudio in your concert/installation Sunday?

Phil Burk