[Xenomai-help] linux 2.6.11

[xenophile <xenophile@domain.hid>]

Hi,

I am trying to see why a trivial driver reading an ADC on an EP9312 ARM 
board has slowed by a factor of three. Since I installed it under 2.6.29 
a couple fo years ago.

It's looking like this is due to a kernel update I did in the mean time 
to 2.6.32


I have just built a new toolchain and rebuilt the kernel to 2.6.33 and 
the result is about the same.

I recall a number of years ago running a 2.6.11 kernel and the system 
was incredibily responsive. I could be building kde-libs, downloading at 
full speed browsing and listening to mp3 decoded music all without the 
slightest lack of responsiveness in the browser not a glitch in the mp3 
playback.

It was truly impressive.

Now I find if I am rebuilding the toolchain , the browser or any other 
window can take over a second to respond to a redraw ( 2.6.32 on this 
machine).


Now I've seen comments on audio forums that there was nothing better 
than linux 2.6.11 for real time audio work. I'm wondering  whether there 
is not a general degradation in the linux kernel as time goes on.  It 
certainly seems to be getting forever bigger and slower.

Would there be any value in trying to rebuild a 2.6.11 based system for 
realtime work ?

TIA,