RE: WAS 2.0 thread CPU hog

["Patrick L Archibald" <Patrick.Archibald@xxxxxxxxxxxxx>]

Larry

What can I do to determine exactly what it is doing?

Using WRKJOB command, here is the program stack during a RUN status in
descending order on the thread in question:

access      QSYS
Java_java_io_File_exists0
_MINATIVE(_L)I
java-io-File-exists()Z
com-ibm-servlet-classloader-FileDependency-validate()V
com-ibm-servlet-classloader-DirClassProvider-validate()V
com-ibm-servlet-classloader-JarDirClassProvider-validate()V
com-ibm-servlet-classloader-DynamicClassLoader-validate()V
com-ibm-servlet-classloader-PowerClassLoader-validate()V
com-ibm-servlet-engine-SEServletManager-validateServlets()V
com-ibm-servlet-engine-SEServletManager$ServletValidator-handleAlarm(Lcom-su
n-server-util-Alarm;)V
com-sun-server-util-AlarmManager-run()V
java-lang-Thread-run()V

and so on and on.

Does this give you any clues?

Thanx, PLA



-----Original Message-----
From: owner-java400-l@midrange.com
[mailto:owner-java400-l@midrange.com]On Behalf Of Larry Loen
Sent: Tuesday, March 06, 2001 12:49 PM
To: JAVA400-L@midrange.com
Subject: Re:



Patrick Archibald asked:

>I'm running OS/400 V4.5 Websphere V2.0 on my Intranet.
> One of the threads
>runs every couple of seconds and eats up good bit of CPU.

It could be the Java garbage collection thread.


Larry W. Loen  -   Senior Java and AS/400 Performance Analyst
                          Dept HP4, Rochester MN


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