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vs02
2013 Oct 04
2
Again about encoding speed of different compiles
...YS from http://xhmikosr.1f0.de/tools/)
* Intel C++ Composer XE 2013 update 5
* MSVS 2010 SP1
* MSVS 2012 update 3
(SSSE3 and SSE4.1 code was disabled for all compilers)
Stereo 24-bit WAV file was encoded with -8 preset.
Encoding time, in seconds:
GCC 32-bit: 209
ICC 32-bit: 130
VS10 32-bit: 116
VS12 32-bit: 114
GCC 64-bit: 79.5
ICC 64-bit: 81.2
VS10 64-bit: 81.1
VS12 64-bit: 83.3
According to a profiler, FLAC__lpc_compute_residual_from_qlp_coefficients_wide()
is one of the most CPU consuming. I added __restrict keyword to its parameters.
before it was:
void FLAC__lpc_compute_residual_from_...