I share your concerns 100%
My hunch is that the machine (Solaris in my case) is getting hammered swapping
because the basic memory allocation for a java environment is too small for the
actual application. The web console wants about 71mb for instance, but the
basic allocation is 64 mb and there fore, no matter what, you spend your time
swapping java back in and out. Janes comment about it being pure CPU don't jive
with that, so I could be wrong.
If I had any number of web console users this would be a significant concern.
But Jane's point is right on the money, it consumes entirely too much of the
machine.
I have heard that using an alternate java deployment (such as IBMs) can help,
but I don't know whether AIX uses that nifty IBM java machine or whether it
uses a stock one.
-----Original Message-----
From: Jane Curry [mailto:jane.curry@skills-1st.co.uk]
Sent: Monday, May 12, 2003 12:13 PM
To: NetView mailing list
Subject: [nv-l] java hogging CPU
Is anyone else really bored by the way NetView's java processes (jetty
and snmpserver in particular) just max out an AIX system on CPU? I've
recently built a NV 7.1.3 on AIX 5.1 hoping for better things but java
still hogs most of the resources - it's pure CPU, there's no thrashing
going on. Add on a TEC java console or something like CiscoWorks and
you can simply forget it.
I tried Oliver's suggestion about looking at AIX manuals on Java tuning
(with AIX 4.3.3) but this didn't really help.
Does anyone have any good, specific recommendation for tuning java for
NetView on AIX?
Thanks,
Jane
--
Tivoli Certified Consultant & Instructor
Skills 1st Limited, 2 Cedar Chase, Taplow, Bucks, SL6 0EU, UK
Tel: +44 (0)1628 782565
Copyright (c) 2003 Jane Curry <jane.curry@skills-1st.co.uk>. All rights
reserved.
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