[MPlayer-users] encoding speed of x264 major change

[Nico Sabbi]

Il Saturday 14 June 2008 18:25:44 Galen ha scritto:
> Alex,
> 
> I'd go back and re-checkout and re-build x264 and mplayer in order.  
> Make sure all the CPU optimization flags are being properly set at  
> build and there are no linker-related errors. At one point, I believe  
> I had to grab a new linker to build x264 as they required it for full  
> optimization flags to function. (Don't quote me on this!)
> 
> Something as simple as a few optimization flags set wrong could cause  
> enormous performance issues. In my experience, x264 gets both faster  
> and higher quality over time. Certainly, you should see an improvement  
> on both points given the same settings used with a recent x264 versus  
> a year ago.
> 
> If performance still seems askew, try monitoring CPU usage to ensure  
> that threading is occurring properly across (I assume) four cores.
> 
> If that checks out, you might run a few benchmarks to make sure  
> everything is alright with your machine. A loose heatsink, broken fan,  
> etc. can cause your machine to dramatically underclock itself, as can  
> a BIOS issue.
> 
> -Galen
> 

please, don't top post.
Alex: do you have yasm installed?