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[Discuss] Some Java questions

Jerry Feldman <gaf.linux at> writes:

> We have an important client-related Java issue. We are trying to reproduce
> a client's problem, but they are using a very large host (96GB/8CPU) and we
> just were able to upgrade a VM to 4CPUs and 64GB for this project. I would
> like to know if there are any good run-time tuning parameters that my
> coworker can set to use more of the memory. (We are using Java SE

    Run java -X; it'll dump the help for the ("non-standard and subject
to change without notice") -X options.

    A couple of the memory related ones I've used before include:

    -Xms<size>        set initial Java heap size
    -Xmx<size>        set maximum Java heap size

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