RFR: JDK-8261034: improve jcmd GC.class_histogram to support parallel

Sat Feb 20 11:27:52 UTC 2021

On Sat, 20 Feb 2021 09:50:05 GMT, Hamlin Li <mli at openjdk.org> wrote:

> Sure, thanks for the detailed reviewing.
> Let me record the help message as below:
> "Number of parallel threads to use for heap inspection."
> "0 (the default) means let the VM determine the number of threads to use. "
> "1 means use one thread (disable parallelism). "
> "For any other value the VM will try to use the specified number of threads, but might use fewer."

I like this one too.  Thanks for dicussion and finalize it.

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PR: https://git.openjdk.java.net/jdk/pull/2379