How do you increase heapsize if the suggestion is to keep the Xms and Xmx
values the same?
"Suresh babu" <[EMAIL PROTECTED]>
07/19/2006 12:21 AM
Please respond to "Tomcat Users List"
To: "Tomcat Users List" <users@tomcat.apache.org>
cc:
Subject: Re: Increase Heapsize
Hi,
Use following line in catalina file
set JAVA_OPTS=%JAVA_OPTS% -verbosegc -XX:+PrintGCDetails in windows change
accordingly to linux.
Run stratup.sh from command line: to see all heap information on console.
On 7/19/06, Suresh babu <[EMAIL PROTECTED]> wrote:
>
> Hi
>
> It's an option to
> the JVM, just append this line over there -verbosegc
-XX:+PrintGCDetails.
> To avoid out of memmory errors just make sure minimum and maximum heap
> space should be same.
> You can find out still more information with GC details logged on
enabling
> above option in JVM.
>
> Check it out how much memmory is reclaimimg on each GC and whats the
> frequency of minor or major GC are happening.
> More over you can set different alogorithms like copying
collector.markand compavt/mark and sweep /incremental/throughput
collectors in young/ old
> generation.
> You can find brief details in following links.
>
> http://java.sun.com/docs/hotspot/gc5.0/gc_tuning_5.html
>
>
>
> On 7/18/06, [EMAIL PROTECTED] <[EMAIL PROTECTED] >
wrote:
> >
> >
> > Chris,
> > This gives how much heapsize is currently allocated.
> > How can I know whether it is enough or what size it should be
> > increased to?
> > Also: real time wise, how if tomcat behaving with each
> > event/interaction/page delivery?
> >
> >
> > Thanks,
> > Ibrahim
> >
> >
> > *Christopher Schultz < [EMAIL PROTECTED]>*
> >
> > 07/18/2006 09:00 AM
> >
> > Please respond to "Tomcat Users List"
> >
> > To: Tomcat Users List < users@tomcat.apache.org>
> > cc:
> > Subject: Re: Increase Heapsize
> >
> >
> >
> >
>
>
> Ibrahim,
>
> >> You can always call Runtime.getRuntime().totalMemory() to find out
the
> >> amount of heap space that has been allocated to the JVM.
> >
> > Where would this code be written?
> > And how would I execute it?
>
> Just toss a JSP file somewhere with that code in it to allow you to
> check up on the app.
>
> -chris
>
>
>
>
>
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>
> --
> Suresh Babu,
> Software Engineer,
> Computer Associates-India
>
--
Suresh Babu,
Software Engineer,
Computer Associates-India
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