Hi
Sorry for my late answer. I hope it helps even if it's late.
Con Kolivas said:
>
> Ok kick my butt instead so I can try and fix it.
>
>
> Can you tell me how it compares to vanilla at all, and can you watch top
> and see what dynamic priorities are reported for the cc and mplayer
> processes while it's running?
>
Test setup: same config (attached) for kernel. Slackware in runlevel 1
(no daemons).
Kernels tested: 2.5.74 vanila, 2.5.74-mm1, 2.5.74-mm2 with your
patch.
Opening three xterm windows in fvwm2: in one top is feeding
only the running processes in one file, in the
second one "make bzImage" after a make clean with linux-2.4.21
sources and in the third one mplayer /some/movie.avi.
The movie is the same every time.
Results (see atched files):
Vanila kernel is a little bit better than mm. On vanila mplayer has
a smaller priority than cc1 but it still skips frames though is much
smoother. On mm they have the same priority and mplayer skips
worse than on vanila kernel
It seems that gcc uses a lot of cpu while mplayer uses little
cpu so the kernel is favouring the process which eats more cpu .
>> I remeber with nostalgicaly about the times when i could (with a 2.5
>> kernel) do a make -j 5 bzImage AND watch a movie in the same time
>
> <sigh> If it were still the case I wouldn't be spending hundreds of
> hours doing this :|
>
Sorry if I upset you. I apreciate your's (and other's) work on linux
kernel. I'm not a native english speaker and i was just trying to
give an order of magnitude of how the worse kernel is today
(in terms of multimedia) compared with past times.
> Con
Thanks
Bye
Calin
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