3 Replies Latest reply on May 21, 2015 11:03 AM by Kj - Kiran Jadhav

    Heap size in Oracle Applications R12

    Ramaraju

      Hi all,

      Why we need to increase JVM heap size?

      Actually what is heap size?

      I have searched about it but I didn't get.

      In $ORA_CONFIG_HOME/10.1.3/opmn/conf/opmn.xml file some are editing the data id="java-options" value="-server -verbose:gc -Xmx512M -Xms128M -XX:MaxPermSize=160M and some other are editing data id="java-options" value="-server -verbose:gc -Xmx512M -Xms128M -XX:MaxPermSize=160M.

      Here what is "-Xmx512M -Xms128M" & "-XX:MaxPermSize=160M" ?

      Why we need to increase them?

      Can we increase both "-Xmx512M -Xms128M" & "-XX:MaxPermSize=160M" ?

       

      Thanks,

      Ramaraju.