[Preston] optimizing X11/Video performance for DVD playback

[Jim Skelton]

Hi all

I eventually found the time to buy a DVD drive and install  ogle for DVD 
playback, however I can only seem to get a frame rate of 18 frames per 
second, which does look a bit jerky (bit like "super 8 home movie at times) 
.Is it possible to improve system performance?

My system is a duron 750 MHz with 128Meg of ram, the video card is a rage128 
with 32Meg of vid memory. I have installed the R128 drivers which give the 
XVideo extensions. Ive also been into the BIOS and set AGP to x4 and switched 
on the fast write mode (although I'm not really sure what difference these 
make but they do sound as if they might improve performace) (operating system 
is RH7.2 with X11 4.1.0)

When i look at system performance the play back software is using about 40% 
of CPU time and X is using between 50 and 60% of CPU time, so there is almost 
no processing time so spare. 

Would reducing the screen resolution or number of colors improve things 
significantly. The brute force solution would seem to be to buy a faster 
processor but this seems a bit over the top when a DVD FAQ I read suggests 
that a 350MHz Pentium should be adequate for play back

all suggestions gratefully received

Jim