Bob Ham wrote:
Hi all,
I've been running 2.5 for about a week now without any troubles. I did try
2.5.39, but it didn't want to stay up for more than 10 minutes. 41 and 42
have been solid (and that's with all the usual whizbang usb, bttv, etc, stuff
as well.)
good news.
Overall, imho, 2.5 seemed less responsive than the
2.4.19 kernel that I'm
coming from. The mouse cursor sticks on the screen under load, and I had to
increase the buffer size in sweep because it was dropping out like nobody's
business.
yeah, same here. but it *does* seem to boot faster :)
But then I gave 2.5.42-mm3 a whirl, and it seems to
be
considerably more responsive, and sweep drops out much less.
i have not tried it. did you hand-apply the patch, or is there an
updated version against 2.5.42 somwhere ?
I've done some latency tests as well:
http://pkl.net/~node/lad/latency-tests/
The machine is an athlon 1.4GHz, 512MB ram, xfs fs, sblive sound card,
matrox g550 graphics card.
There's quite(!) a descrepency between Joern's and my X11 performance. This
makes me wonder 2 things: what card are you using Joern?, and what (if
anything) can be done to make the X11 performance less ludicrously bad?
it's a trusty ole 3dfx voodoo 3 3000 agp, running in DRI mode with full
3d acceleration (although quake3 performance drops from 41.5 fps to 28),
driving a 17" screen at 1280x1024, with a ps2 mouse and keyboard
attached. that's it.
x11 is the least of my latency problems :)
The 2.4.19 benchmarks in there are probably bad due to
the fact that it's
xfs+lowlatency, but apparently there's ways to do that properly which I
didn't do. Other than that, fairly dry benchmarks; just showing slightly
better performance with each patch.
btw, i see you are using only 2x256 buffers with latencytest. since the
measured results are more-or-less independent of the setting, i'm going
to to that, too and remove the other results for clarity. or is there
some wisdom to be gathered for the wise if i leave them in ? (it's takes
painfully long to create them all...)
regards,
jörn
--
Jörn Nettingsmeier
Kurfürstenstr 49, 45138 Essen, Germany
http://spunk.dnsalias.org (my server)
http://www.linuxdj.com/audio/lad/ (Linux Audio Developers)