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, j�rn -- J�rn Nettingsmeier Kurf�rstenstr 49, 45138 Essen, Germany http://spunk.dnsalias.org (my server) http://www.linuxdj.com/audio/lad/ (Linux Audio Developers)
