Darren Kukulka wrote:
HI There,
Just a quick question regarding the JConsole tool we use to monitor Tomcat5
instances - 2 to be precise.
We've noticed that within the Memory display window the breakdown of Heap usage
shows three areas and their utilisation. The descriptions of each space
differs between the servers, even though essentially they are configured
identically.
They are both running Tomcat 5.5.15 on a Windows 2003 Server and differ
slightly with their JVM (one is running the server JVM, the other is running
the client JVM).
Server 1 - SUN JRE 1.5.0_06-b05 - shows "Eden", "Survivor" and "Tenured" space names
Server 2 - SUN JRE 1.5.0_06-b05 - shows "PS Survivor", "PS Eden" and "PS Old
Gen" space names.
Can anybody explain this behaviour to me?
You're getting different different generations because Java 5 is
recognizing Server 2 as a server class machine -- due to heap
allocation, total memory on the machine and such -- and it's not doing
this on Server 1.
I must admit I'm a bit confused myself about when each occurs as the
documented rules don't seem to actually quite be followed.
--
Jess Holle
---------------------------------------------------------------------
To start a new topic, e-mail: users@tomcat.apache.org
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
