[Ffmpeg-devel] Threading in libavcodec
Mon Jan 23 14:39:09 CET 2006
Mathieu Monnier said:
> > wait, you can always implement anything with 2 threads what can be done
> > with 1 binary identically, the question is how fast it is
> Here are figures that can be found here :
>> Fourth, some random speed results (defaults, vhq4, NO bframes. X2
>> 4200+ CPU).
>> 1 thread : 1:48
>> 2 threads : 1:05
>> 3 threads : 1:06
>> 4 threads : 1:08
>> 16 threads: 1:11
> So, as I said, it scales pretty well.
What are those numbers? Minutes:seconds? Then it's a far cry from what I'd
say scales well. A speedup of 1.66 for two threads is decent but hardly
impressive. And before you can talk about scalability you'd need to test
it on something with a few more CPUs.
mru at inprovide.com
More information about the ffmpeg-devel