I've noticed that test6 isn't as 'smooth' as test5. Specifically, if I
open an nedit window and use the cursor down key to scroll down through
text, there is some jerkiness. At this point I've noticed that CPU use
goes to 1% or more. A similar problem happens with Opera (web browser),
but of course the CPU usage is higher, which is expected.
When I go back to test5, scrolling in nedit is smoother, and CPU never
goes above 0.6%. Note that the speed that text moves is the same in
both, but the test6 version 'jumps' and 'stops' for a little bit. Hence
my describing it as jerky.
I know its not much to go on, but it is a noticable difference, at least
to me. Since this new release has tweaked interactivity patches, I'm
wondering if this has anything to do with it.
System is a fully updated Mandrake 9.1, but I don't think that would
matter. CPU is P4-2.4GHz with 768 MB RAM, and NVidia video card.
Steve
Stephen Anthony wrote:
>I've noticed that test6 isn't as 'smooth' as test5. Specifically, if I
>open an nedit window and use the cursor down key to scroll down through
>text, there is some jerkiness. At this point I've noticed that CPU use
>goes to 1% or more. A similar problem happens with Opera (web browser),
>but of course the CPU usage is higher, which is expected.
>
>When I go back to test5, scrolling in nedit is smoother, and CPU never
>goes above 0.6%. Note that the speed that text moves is the same in
>both, but the test6 version 'jumps' and 'stops' for a little bit. Hence
>my describing it as jerky.
>
>I know its not much to go on, but it is a noticable difference, at least
>to me. Since this new release has tweaked interactivity patches, I'm
>wondering if this has anything to do with it.
>
>System is a fully updated Mandrake 9.1, but I don't think that would
>matter. CPU is P4-2.4GHz with 768 MB RAM, and NVidia video card.
>
Hi Stephen, the new CPU scheduler is likely to be the change. You need
to first make sure your X server is not reniced to -10 (should be at 0).
If that fails to help, then you could try my scheduler (with X at -10!)
http://www.kerneltrap.org/~npiggin/v15a/sched-rollup-v15a-260t6.gz
On Mon, Sep 29, 2003 at 08:22:09AM -0230, Stephen Anthony wrote:
> Since this new release has tweaked interactivity patches, I'm
> wondering if this has anything to do with it.
Yes. Con Kolivas' interactivity patches that have been merged into
mainline mean that if Mandrake's XFree86 runs at a negative nice value,
this will affect interactivity. Please set it to 0.
FWIW for others reading this thread, in Debian it is a matter of running
'dpkg-reconfigure xserver-common'.
(As I was writing this message I realized that Nick Piggin had already
answered, but because of the little Debian factoid I'm deciding to send
it anyway.)
--
Joshua Kwan