x264.exe gcc fprofiled - 3.4.6 versus 4.2.0

[bob0r]

x264.656.gcc3.4.6.fprofiled.exe (http://x264.nl/x264.656.gcc3.4.6.fprofiled.exe)
x264.656.gcc4.2.0.fprofiled.exe (http://x264.nl/x264.656.gcc4.2.0.fprofiled.exe)

Simple request: Please speed test :)

[Inventive Software]

This a multi-core test or single-core test? ;)

[burfadel]

For exactly the same settings etc (I only changed the x264 file each time), the settings, content, and resolution are unimportant:

For GCC 3.4.5 the average frames per second was 25.6
For GCC 4.2.0 the average frames per second was 25.94

Therefore, GCC 4.2.0 is faster

I tried the exact same thing with Cef's build, and got 26.44!!

The output file for each was different, with slightly different file sizes.

[bob0r]

@Inventive Software

Any form of speed test please, i want to know if using gcc 4.2.0 would be better.

I love the way i can switch GCC versions by just using make install from the compiled source files.

I myself got slightly better results with 4.2.0 too, so keep those results coming!

[Cef]

4.2.0 one crashes as soon as it starts on my machine. The other one works and is already pretty fast, nice job.

[bob0r]

@Cef, interesting

On what kind if system did you test?

[Cef]

It crashes on a C2D 6300 running xp x64 and a pentium M something (don't remember) laptop with xp pro. Just using this command line
x264 --qp 26 -o test.mkv test.yuv 640x480

[bob0r]

Ok, seems more people have problems with 4.2.0, ill stick with 3.4.6 for now :)

[burfadel]

The system I had success on is a C2D E6600 running on xp x64.