[MPlayer-users] encoding speed of x264 major change
Nicola.Sabbi at poste.it
Sat Jun 14 19:48:33 CEST 2008
Il Saturday 14 June 2008 18:25:44 Galen ha scritto:
> 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.
please, don't top post.
Alex: do you have yasm installed?
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