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question asked: Apr 30 '12, 10:38 p.m.
question was seen: 5,909 times
last updated: Apr 30 '12, 10:38 p.m.

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JVM Size on 64bit Red Hat 5.5 max size?!

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Gabriel Galvão (31●8●9) | asked Apr 30 '12, 10:38 p.m.
Hi,

I was researching about the possibility of increasing the heap size on a Jazz Team Server deployed on WAS 7 and running on Red Hat 5.5 64bit.

Considering we are on a 64bit Red Hat in WAS 7 here are my questions:

is the bundled JVM 64bit (the WAS 7 one)? If so, that means it will be able to allocate more than 4Gb of RAM, correct? Else, if the JVM isn't 64bit, even on a 64bit operating system it won't make a difference if we allocate more than the maximum addressable RAM, correct?

Thanks in advance,

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Ralph Schoon (63.6k●3●36●46) | answered May 04 '12, 3:05 a.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER
You can run "java -version" to see more information. In a 64 bit distribution I would assume a 64 bit JVM. In general I am careful when downloading distribution which architecture to choose (32/64 bit).

For the JVM settings see: https://jazz.net/jazz/resource/itemName/com.ibm.team.workitem.WorkItem/198140
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Ralph Schoon (63.6k●3●36●46) | answered May 04 '12, 3:44 a.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER
An additional work item you should look at related to memory requirements: https://jazz.net/jazz/web/projects/Jazz%20Collaborative%20ALM#action=com.ibm.team.workitem.viewWorkItem&id=191654
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Gabriel Galvão (31●8●9) | answered May 08 '12, 9:52 a.m.
Thank you very much, rschoon!

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