> From: Harish S Rathod [mailto:
harishjss2002@...]
> Subject: Question regarding Tomcat memory
First, use a different mailer or send only in plain text; whatever you're using is encoding even standard ASCII characters like "=".
> To make our tomcat heap size memory to 8 GB we have set the below=20
How much RAM and swap space do you have on the system? What JVM are you using? To go over 1.8 GB you need a 64-bit JVM.
> $CATALINA_OPTS -Xms8192M -Xmx8192M -Xss1024K=20
Setting -Xss is usually not useful, unless your application is very, very strange.
> as we are observing the maximum heap size memory for
> tomcat gets a reduced bit to around 7756736K and it
> keeps flucatating.
What are you using to do the "observing"? When I run JConsole targeting a JVM with the exact settings you specify, it says this about the heap:
Committed: 8,039,104 kbytes
Max: 8,039,104 kbytes
This is on a SuSE 10 system, with JDK 1.6.0_07, in server mode.
- Chuck
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