On Mon, 1 Apr 2019 09:07:48 +0300
slava <pestov.vy...@yandex.ru> wrote:

> Sorry for title. It is my first experience in git send-email. Can I make
> a benchmark with handwritten tests or have some standard tool in ffmeg?
> And will the benchmark on x86-64 be informative?

We have standard bench macros, START_TIMER and STOP_TIMER. Put those
around the function's callsite, then do some ffmpeg run that calls that
specific function. Then add "-cpuflags 0" to the call to get the C
results, and from the numbers you can calculate the speedup.

Both the C and VSX runs should be done on the POWER machine. A Qemu VM,
emulating POWER instructions on x86-64, would probably be useless for
benchmark purposes. There are free POWER VMs available for testing from
a few places.

- Lauri
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