JDK-4206035 : 64bit support for Java heap? Raise the max heap size limit of a JVM
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 1.1.6
  • Priority: P4
  • Status: Closed
  • Resolution: Duplicate
  • OS: solaris_2.5.1
  • CPU: sparc
  • Submitted: 1999-01-26
  • Updated: 1999-03-04
  • Resolved: 1999-03-04
Related Reports
Duplicate :  
JDK-4216417 - (porting) Need 64-bit version of the JVM for Solaris 7.
Description

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)
======================================================================
Comments
WORK AROUND Name: tb29552 Date: 01/26/99 none ======================================================================
11-06-2004
EVALUATION On Solaris 7 we don't support a 64 bit version of Java yet. anand.palaniswamy@Eng 1999-02-12
12-02-1999