Webtop 5.2.5 SP3 on Oracle Application server 10g (9.0.4)

[Eric Phenix]

Hi,

We having a poor performance on our system running Webtop 5.2.5 SP3 on Oracle Application server 10g (9.0.4).

I`m try to find information on kernel, java options head and memory, how many jvm should we run and best pratice.

Thanks

Eric

[TY 007]

Hello Eric,

For Java, load in necessary HP-UX OS Patches.

Check whether the following (or newer) HP-UX OS Patches is in the System.

HP-UX 11.23 OS Patches:
http://h18012.www1.hp.com/java/patches/g-11.23-1.3-1123.0000.html
http://h18012.www1.hp.com/java/patches/g-11.23-1.4-1123.0000.html
http://h18012.www1.hp.com/java/patches/g-11.23-5.0-1123.0000.html

HP-UX 11.11 OS Patches:
http://h18012.www1.hp.com/java/patches/g-11.11-1.3-1111.0000.html
http://h18012.www1.hp.com/java/patches/g-11.11-1.4-1111.0000.html
http://h18012.www1.hp.com/java/patches/g-11.11-5.0-1111.0000.html

HP-UX 11.00 OS Patches:
http://h18012.www1.hp.com/java/patches/g-11.00-1.3-1100.0000.html
http://h18012.www1.hp.com/java/patches/g-11.00-1.4-1100.0000.html

Thanks

[Wim Rombauts]

Checking possible java performance patches is of course a god start.

Once we also had java performance problems (and yes, we run Documentum Administrator 5.2.5 SP5 on Oracle A.S. 9.0.4.2 but this was not our troublesome application). After external consultancy, the only thing we learned about JVM tuning, is that it's wise to minotor memory usage and garbage collection.
Add option "-Xverbosegc:file=" to the commandline java options (in the administration page of the OC4J-container in question). Use a ".vgc" extension for the filename.

The download HP JMeter 3.0 (are any other tool that can do the same) on your PC, let the container run for a while and check the .vgc file generated by the container. You could see long garbage collect times. If so, you can start by increasing memory or changing garbage collection procedures.