Highly loaded machine getting slower and slower

Poul-Henning Kamp phk at phk.freebsd.dk
Mon Jul 28 06:45:55 PDT 2003

In message <20030728151919.S334 at pcle2.cc.univie.ac.at>, Lukas Ertl writes:
>Hi there,
>I'm having again problems with a highly loaded 5.1-current machine.  The
>box is a 2.4GHz Dual Xeon (HTT enabled) with 1GB RAM and acts as a news
>server/feeder running diablo.  It's pumping out 120+Mbit/sec over Gigabit
>without a glitch, but after some time, it's getting slower and slower,
>until it seems to completely freeze, but it's still alive, just _very_
>unresponsive and in fact has to be rebooted.

Run a shell script in cron every 5 minutes where you record
	sysctl kern.malloc
	sysctl vm.zone
	ps -axlw

and look out for anything which just gobbles up more and more

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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