I have found an increase of about 200% (fink-lame speed of 0.7 versus altivec-compiled-lame of 2.2/2.3) when lame is compiled as these fellows have done (on G4's):
http://forums.blacktree.com/viewtopic.php?t=58&start=15
or
Lame 3.93 or 3.92 compiled using either:
./configure CFLAGS="-O3 -falign-loops-max-skip=15 -falign-jumps-max-skip=15 -falign-loops=16 -falign-jumps=16 -falign-functions=16 -malign-natural -ffast-math -fstrict-aliasing -funroll-loops -floop-transpose -mpowerpc-gpopt -fsched-interblock --param max-gcse-passes=3 -fno-gcse-sm -mcpu=G4 -mtune=G4"
or more simply:
CFLAGS="-O3 -faltivec -mcpu=G4"
----
It would be nice to have the lame package compile optimized code for us :)
~ Gordon
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