On Fri, 8 Oct 1999, Monty wrote:
> > I did a simple comparison of LAME 3.31 to LAME 3.32 using default options
> > on 44.1khz stereo .WAV input. On my P2-266mhz, LAME 3.31 went 0.92x speed,
> > and LAME 3.32 goes 1.21x speed. Nice work!
>
> Keep in mind that due to cache alignment (and other) issues, runs of the same
> executable can vary in speed by almost half depending on where in the buffer
> cache they get placed. Some of that is working theory, actually. Do this and
> note the strangeness:
There is a set of patches to the Linux kernel that give more predictiable
(and sometime better, seldom worse) cache alignment. I dont think it ever
made it in completely.. You could try doing a search for cache coloring,
and perhaps check the Linux MM page.
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