[tremor] Ogg/Vorbis report, FFT optimizations

[Segher Boessenkool]

>> That depends on your problem domain.  From his point of view, it
>> definitely _is_ a fair comparison.
>
> That depends on what your are trying to show.

Which is exactly my point.

> For a specific implementation, the comparison is valid. But if you
> are trying to show that the FFT approch is faster than the original
> MDCT code, then you should not compare optimized code against
> unoptimized code.

Agreed on both counts.
>> Words do *not* have to be aligned on al processors.
>
> Ok, almost all.

Not on the two mainstream architectures (x86, ppc).

<p>Segher

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