Idle server 1 meg/second memory consumption

WL 6.1 sp2
Solaris 2.8
JDK 1.3.1_02 -server, 1 gig heap
I noticed lately through the console that an idle WL server, with our
application deployed but no client/sockets connecting to it other than the
web console, is consuming memory at about 1 meg/second. Is this the norm?
Seems a bit voracious to me....
Gene

Damn it, I added one too many zeros! I'm looking at the performance graph
in /console and thought I was seeing 300 megs, instead of 30 megs! So in
actuality my idle server is consuming .1 meg/sec, which seems a bit more
like it... Can I make a feature request, have the console show
comma-separators for those big numbers? :-)
Actually this is a lead-in to my real question: on production we have a
couple of servers that are true memory hogs; they go through 1 gig GC's in
20 seconds! This is causing a lot of issues, obviously: GC occurs every 20
seconds, with 3-5 second GC time. Hence we have an inordinate amount of
"downtime", even if we cluster 2-3 servers, each experiencing this kind of
memory consumption. Here's what I want:
1) I like to capture a daily and weekly graph of GC frequency and duration.
The java applet console does not record such history, so I'm wondering if
there is an MBean I can use, or has someone written one that does this?
2) How can I profile my 50 SLSB ejbs to find which one(s) are the memory
hogs? They aren't leaking, because GC always bring them back down to
baseline; they just suck up a lot of memory! I've tried using -Xrunhprof
and JProbe, but both slow the server down to a point where its unbearable to
run (on dev, I don't do this on production :-)). You guys have other tricks
to find memory consumers?
Thanks,
Gene
"Rob Woollen" <[email protected]> wrote in message
news:[email protected]..
1 MB/s does seem like a lot for an idle server. You might try taking
some thread dumps when it's supposedly idle and see what it's up to.
-- Rob
Gene Chuang wrote:
WL 6.1 sp2
Solaris 2.8
JDK 1.3.1_02 -server, 1 gig heap
I noticed lately through the console that an idle WL server, with our
application deployed but no client/sockets connecting to it other than
the
web console, is consuming memory at about 1 meg/second. Is this thenorm?
Seems a bit voracious to me....
Gene

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