Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-4206035

64bit support for Java heap? Raise the max heap size limit of a JVM

XMLWordPrintable

    • Icon: Enhancement Enhancement
    • Resolution: Duplicate
    • Icon: P4 P4
    • None
    • 1.1.6
    • hotspot
    • sparc
    • solaris_2.5.1



      Name: tb29552 Date: 01/26/99


      Need to be able to start our non-trivial server side Java Language applications
      with a huge heap allocation. For example, this EJB App needs 48Gb heap size:

      1. java -mx40000m weblogic.Server
      2. src code: n.a.
      3. err msg: -mx40000m: invalid parameter
      4. trace: n.a.
      5. arch: SUNW,Ultra-Enterprise-10000 64CPUs @333MHz 48Gb RAM; 1 domain (SUN Benchmark Center Geneva)

      it looks like the max heap size of a JVM is limited to 2Gb;
      therefore it is not possible to give a 40Gb ejb cache to ejb
      container to hold sth close to 1 billion objects
      (Review ID: 53207)
      ======================================================================

            apalanissunw Anand Palaniswamy (Inactive)
            tbell Tim Bell
            Votes:
            0 Vote for this issue
            Watchers:
            0 Start watching this issue

              Created:
              Updated:
              Resolved:
              Imported:
              Indexed: