What is the default maximum heap size for Sun's JVM from J2SE 6?

Posted by dfrankow on Stack Overflow See other posts from Stack Overflow or by dfrankow
Published on 2010-05-26T17:22:23Z Indexed on 2010/05/26 18:01 UTC
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java

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jvm

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memory-usage

What is the default maximum heap size for Sun's JVM from J2SE 6 (i.e. equivalent to setting -Xmx)?

Looks like for J2SE 5 with a server-class machine, it's

Smaller of 1/4th of the physical memory or 1GB.

Bonus question: Looks like for IBM's JVM you can ask it

java -verbose:sizes -version

Can you similarly ask Sun's JVM?

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