I know almost nothing about java.
I think Dieter Bender may have some relevant advice.
He also has an open source project that "hosts" java applications and does some kind of memory management . . .
-----Original Message-----
From: JAVA400-L [mailto:java400-l-bounces@xxxxxxxxxxxx] On Behalf Of Steinmetz, Paul
Sent: Thursday, June 18, 2015 7:09 AM
To: 'java400-l@xxxxxxxxxxxx'
Subject: Java batch job performance issue
We are testing our first Java application.
V7R1 JDK 6.0 32 bit.
Sending 1,000,000 single requests in batch to a remote server.
This was a stress test.
Job was constantly taking 50% CPU, very little disk.
When started, job was doing 25 api calls per second, now it is 3 after 740,000 after 18 hours.
The heap size started at 30MB and is now roughly 600MB.
The job did not error, simply slowed down.
We cancelled at this point.
The process is called from an RPGLE pgm, Java is initialized in CLLE pgm.
Any thoughts?
Thank You
_____
Paul Steinmetz
IBM i Systems Administrator
Pencor Services, Inc.
462 Delaware Ave
Palmerton Pa 18071
610-826-9117 work
610-826-9188 fax
610-349-0913 cell
610-377-6012 home
psteinmetz@xxxxxxxxxx
http://www.pencor.com/
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