[flac-dev] Performance checks

lvqcl lvqcl.mail at gmail.com
Wed Jul 2 13:35:52 PDT 2014

Martijn van Beurden wrote:

> For the GCC 4.8 results, there is a*very nice 60% to 70% speed
> increase* when encoding with preset -8 between FLAC 1.3.0 and
> current git.

Currently FLAc defaults to -msse2 which means that SSSE3 and SSE4.1
optimizations don't work with GCC < 4.9. SSE4.1 is useful only for
32-bit builds (*) and 24-bit input files, but SSSE3 should give
a few percent speed increase over SSE2.

(*) - according to my tests on Intel CPUs.

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