2009-01-14, 20:42
Thank's Aron, but i asked Althekiller about xbmc's patch. It would still be good to make it clear why it is going with so bad performance under Intrepid.
I will also make a test if there is any performance difference with ffmpeg-mt patch applied in Hardy or in Intrepid. That would also tell us if it is effecting ALL ffmpeg versions or only the patch in xbmc.
I noticed a strange thing with SPEEDSTEP on two Intel based computers.
If i ENABLE speedstep i have the multithreaded performance dramatically BETTER.
If i DISABLE speedstep i have WORSE performance.
I really don't understand this. It is making differnce also in Intrepid and Hardy.
So anyone having speedstep disabled in BIOS should have it enabled for optimal performance.
It does not seem to be like that on windows. Somehow it is related to Linux kernel only.
I will also make a test if there is any performance difference with ffmpeg-mt patch applied in Hardy or in Intrepid. That would also tell us if it is effecting ALL ffmpeg versions or only the patch in xbmc.
I noticed a strange thing with SPEEDSTEP on two Intel based computers.
If i ENABLE speedstep i have the multithreaded performance dramatically BETTER.
If i DISABLE speedstep i have WORSE performance.
I really don't understand this. It is making differnce also in Intrepid and Hardy.
So anyone having speedstep disabled in BIOS should have it enabled for optimal performance.
It does not seem to be like that on windows. Somehow it is related to Linux kernel only.