Re: 2.4.2-ac21: aviplay slowdown

[Alan Cox]

> I compiled 2.4.3-pre6 and 2.4.2-ac21 and noticed, that aviplay works
> much worse than before. Avifile benchmark told me:
> 
> Average video output speed: 20.566223 Mb/s
> 
> On 2.2.18 and earlier 2.4.2-ac* it gives 50-55Mb/s.
> 
> mtrr is enabled:
> 
> [jp@darkwood jp]$ cat /proc/mtrr
> reg00: base=0xe8000000 (3712MB), size=  32MB: write-combining, count=2
> 
> My hardware: K6-2 500, VIA MVP3, Voodoo3

Are the numbers comparable if you have mtrr disabled on both the old and new 
kernel tree ?