Difference between revisions of "Memory settings"

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# Edit [JBoss home]\bin\standalone.conf.bat
# Edit [JBoss home]\bin\standalone.conf.bat
# Set the following value
# Ensure the following value is present


   set "JAVA_OPTS= -Xmx512m -Xms1024m -XX:MaxPermSize=256m"
   set "JAVA_OPTS= -Xmx512m -Xms1024m -XX:MaxPermSize=256m"

Revision as of 00:53, 2 March 2013

The following sample sets

  • PermGen space is set to 256 MB
  • Minimum application memory is 512 MB
  • Maximum application memory is 1 GB
-Xmx512m -Xms1024m -XX:MaxPermSize=256m

Max total memory in this setup is 1256 MB


Setting values in Tomcat / Windows

Tomcat6

The service can be changed by

  • Open prompt as Administrator
  • Run the following commands
  cd "C:\Program Files\Apache Software Foundation\Tomcat 6.0\bin
  Tomcat6w.exe //ES//tomcat6
  • Klik "Java" page
  • Set the values
    • Initial memory pool (aka "Xms"): 512m
    • Maximum memory pool (aka "Xmx"): 1024m
    • Add an extra line to Java Options
 -XX:MaxPermSize=256m
  • Klik OK

Tomcat7

As Tomcat 6 except for step 2

  cd "C:\Program Files\Apache Software Foundation\Tomcat 7.0\bin
  Tomcat7w.exe //ES//tomcat7

See the visual guide here

http://plavc.wordpress.com/2012/02/08/tomcat-service-on-windows/

Setting values in Tomcat / Linux

Find catalina.sh in something like: /usr/share/tomcat6/bin

Assign following line to JAVA_OPTS variable and add it into catalina.sh file.

 JAVA_OPTS="-Djava.awt.headless=true -server -Xmx512m -Xms1024m -XX:MaxPermSize=256m"


Setting values in JBoss 7.x / Windows

  1. Edit [JBoss home]\bin\standalone.conf.bat
  2. Ensure the following value is present
 set "JAVA_OPTS= -Xmx512m -Xms1024m -XX:MaxPermSize=256m"