Usage of the G1 Garbbage collector

We wanted to test the G1 garbage collector that is available from the JDK1. 6 version with the Build 14, when tested the app that was previously running with the CMS (Concurrent Mark and Sweep) The time that is taken for the executtion of the application is less than that of when used with the G1 Collector, we did not configure any of the GC interval also.
But the Execution times are on the higher rate, per the documentation this will reduce the Execution time so that the apps execute faster.
Using MarkAndSweep
Total Time Taken for publish method call for IRIS 643 For PersonID 337166474163
Using G1 GC
Total Time Taken for publish method call for IRIS 864 For PersonID187544101467
Total Time Taken for publish method call for IRIS 697 For PersonID151493512468
Using MarkAndSweep
Total Time Taken for publish method call for hornetQ 248 For PersonID 337166474163
Using G1 GC
Total Time Taken for publish method call for hornetQ 395 For PersonID187544101467
Total Time Taken for publish method call for hornetQ 271 For PersonID151493512468
Java Opt for G1 GC
-XX:+UnlockExperimentalVMOptions -XX:+UseG1GC
Is there some thing that is wrong configuration we are using, the app is running on the JBOSS version 7.1.1

nicolasmichael wrote:
Hi,
the "memory limitation" does not have anything to do with garbage collection, but with the address space your operating system provides. On a 32bit operating system, your virtual address space is limited to <= 4 GB, depending on your operating system (for example 1.something GB on Windows and 3.something GB on Solaris). No.
Windows 32 bit has a 2 GB application space and can be configured to allow a 3GB space.
The Sun VM does not allow more because of the way that the executable is linked.
[http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4358809]

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JAI wrote:
> I am wondering if there is a way, using LabView, to monitor the CPU
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>
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David Thomson 303-499-1973 (voice and fax)
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www.originalcode.com
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878226 wrote:
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