From: Tobias Oetiker (oetiker@ee.ethz.ch)
Date: Mon Jan 12 2004 - 07:23:15 EST
Folks,
We have this 4 Way Sun Enterprise 420R server. With 4GB Ram and
about 10GB swap. It runs a ton of services (Apache, Postfix,
Amavis, Spamassassin) and it also acts as a NFS server.
Lately we are experiencing performance issues ... the box goes to
load 17 and responds rather sluggishly.
When looking at the load we often see the following picture:
50% User
50% Kernel
0% Idle
The 50% User is easy to attribute by looking at the processes. But
what is the system doing in the 50% kernel time?
Is there something like kernel-top? I played around with lockstat
a bit, but it did not really answer my questions ...
We are running Solaris 8.
cheers
tobi
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