[flac-dev] exhaustive-model-search issue results in multi-gigabyte FLAC file

[Erik de Castro Lopo]

Erik de Castro Lopo wrote:

> I like to make it correct before I make it fast.

Just to 100% sure we know exactly how much I did some tests.

Test machine was Dell laptop with an Intel(R) Core(TM) i7-3537U
CPU @ 2.00GHz running Debian testing. The results for i386 below
are the same machine but running Debian testing for i386 in a
chroot.

The source file was "Piano, bass, drums" by The Necks, a single
53 minutes stereo, 44k1 WAV file.

The before column was compiled from the flac sources just before
the latest fix, while the after includes said patch.

              before          after
--------------------------------------
amd64        0m30.658s       0m31.441s
amd64        0m30.910s       0m31.564s    2.25% slower
amd64        0m30.836s       0m31.487s

i386         0m36.414s       0m38.604s
i386         0m36.267s       0m38.663s    6.6% slower
i386         0m36.024s       0m38.589s

Obviously, this slow-down only occurs with encoding level 7 or
higher.

Erik
-- 
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Erik de Castro Lopo
http://www.mega-nerd.com/