Justin Erenkrantz wrote: > > On Tue, Jan 08, 2002 at 10:18:18PM -0500, Greg Ames wrote: > > as I mentioned in another post, 2.0.29 also seems to have the high load average > > problem. The run queue size numbers displayed by vmstat weren't quite as > > extreme as what I saw yesterday pm, which may be because there's less traffic in > > the evening. But then the load averages displayed by top gradually built up > > until they were much higher than what we see with 2_0_28. > > Well, I can reproduce it locally just by asking for the manuals > with flood: > > jerenkrantz@walla% uptime > 8:05PM up 11:51, 3 users, load averages: 22.64, 9.35, 3.76
COOL!! > Looking further into it now. Of interest in the top output is that > a lot of process are "Mutex" wait. uh-oh. The live server on daedalus doesn't use accept mutexes. The idle servers sit in accept() because we don't think FreeBSD has a thundering herd problem. do you see the "Mutex" wait in the STATE column? and is walla FreeBSD w/prefork? when this gets really bad on daedalus, top shows "RUN" in the state column for most of the httpd's briefly, then after the screen refreshes you see more normal waits - select or accept, for example. Greg
