Compile Benchmarks

Tests have been run with 4 jobs (make -j4) without ccache on a Sandybridge i5 with 2 real cores and 4 logical cores.

Tested revision: N-63646-g181b2c3:

commit 181b2c37249c60033071b2744da4941a5f8ec0d3
Author: Michael Niedermayer <michaelni@gmx.at>
Date:   Sun Jun 1 03:57:17 2014 +0200

    avcodec/mjpegenc: disallow encoding amv with height%16!=0
    
    I do not know on which side to place the padding to encode with 16x16 MBs
    If someone knows or has a known to be correct sample, please contact me
    
    Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Compile

gcc-4.8
--enable-gpl	4m15s	100%
--enable-gpl --disable-yasm	3m45s	88.24%
--enable-gpl --disable-debug --disable-optimizations	1m43s	40.39%
gcc-4.7
--enable-gpl	4m22s	102.75%
--enable-gpl --disable-yasm	3m55s	92.16%
--enable-gpl --disable-debug --disable-optimizations	1m39s	38.82%
clang-3.4
--enable-gpl	2m43s	63.92%
--enable-gpl --disable-yasm	2m21s	55.29%
--enable-gpl --disable-debug --disable-optimizations	1m28s	34.51%

FATE

gcc-4.8
--enable-gpl	3m23s	100%
--enable-gpl --disable-yasm	4m14s	125.12%
--enable-gpl --disable-debug --disable-optimizations	7m49s	231.03%
gcc-4.7
--enable-gpl	3m19s	98.03%
--enable-gpl --disable-yasm	4m12s	124.14%
--enable-gpl --disable-debug --disable-optimizations	7m49s	231.03%
clang-3.4
--enable-gpl	3m32s	104.43%
--enable-gpl --disable-yasm	4m39s	137.44%
--enable-gpl --disable-debug --disable-optimizations	7m33s	223.15%