[flac-dev] Performance checks

Miroslav Lichvar mlichvar at redhat.com
Tue May 28 10:38:15 PDT 2013


On Tue, May 28, 2013 at 07:17:58PM +0200, Martijn van Beurden wrote:
> I was doing some checks in preparation of updating the comparison on
> the FLAC page this summer and I thought the results might be
> interesting for people on the dev list as well.

I'm always interested in performance tests :).

> The performance of the minGW-w64 build (through wine) and the native
> Linux 64-bit build is similar, so I guess my original question is
> answered: wine doesn't affect performance. However, I tried quite a
> few things building a 32-bit binary on my Linux system, but they are
> all *very* slow. Does anyone know why? I ran ./configure
> --build=i686-pc-linux-gnu CFLAGS='-m32' CPPFLAGS='-m32'
> LDFLAGS='-m32' and tried a bunch of other things. Any thoughts?

I think if you are setting CFLAGS you need to include also the
optimizations flags, e.g. "-m32 -O3 -funroll-loops" to match the
default CFLAGS.

Thanks,

-- 
Miroslav Lichvar


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