On Sun, Dec 30, 2007 at 03:30:40PM -0800, David E. Thiel wrote: > On Sun, Dec 30, 2007 at 11:12:26PM +0100, Kris Kennaway wrote: > >> FWIW, the problem remains for me. Still terrible performance > >> during compiles. > > > > OK. Instead of going over all of the usual questions again, can you point > > me to a previous mail in which you explain your observations and test > > results in detail? > > The most recent is http://marc.info/?l=freebsd-stable&m=119428719505129&w=2, > but > it started way back at > http://marc.info/?l=freebsd-current&m=118998090512027&w=2. > > I've tried a lot of stuff in between, and all I've been able to narrow > it down to is that it's not a display driver issue, and that none of > my swap partition is getting used, so that's not the problem. During > compiles, my UP system with ULE still gets very unresponsive when > compiling, sometimes taking up to 10 seconds just to draw a new terminal > window. Even changing focus with the window manager can take several > seconds. I'd like to provide more info, but I'm not sure what stats > are useful for this particular issue. Please let me know. > > dmesg is at http://redundancy.redundancy.org/dmesg.txt, and kernel > config is at http://redundancy.redundancy.org/DEEPTHOUGHT. Even though > I'm still getting reported 80-95% memory utilization and no paging, > I'm going to get an extra gig of RAM on order to see if that improves > things. 2G of ram for a desktop, what's the world coming to? ;)
BTW, mine similar problem completely disappeared after I switched to SMP kernel and turned on hyperthreading on my workstation Pentium IV 3GHz. I am able to run FPS games while doing 1 (and, most of the time, even 2) compilations/configure run) in parallel. The scheduler used is ULE, RELENG_7. I believe there is something wrong with UP; I did not investigated what.
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