[vorbis-dev] vorbis on playstation 2

Segher Boessenkool segher at koffie.nl
Thu Feb 6 16:25:34 PST 2003

David Etherton wrote:
> I ran a Tremor release build (a modified ivorbisfile_example.c which spits
> out a .wav file, which does sound correct and is binary-exact with a Win32
> PC build) through a profiler and got the following amortized percentages:
> 44% mdct_backward
> 10% _vorbis_apply_window
> 9% vorbis_book_decodevv_add

This is obviously cache kill.  Note that the mdct itself is not the
only culprit of that, of course.


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