RFR: 8304074: [JMX] Add an approximation of total bytes allocated on the Java heap by the JVM [v11]

[Volker Simonis]

On Tue, 9 May 2023 01:23:23 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Paul Hohensee has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Implement 32-bit linux Atomic::add()
>
> Also note that the current placement of the `incr_exited_allocated_bytes` skips accounting for hidden threads because those ThreadService methods skip hidden threads. You need to do this update as one of the last actions of a terminating/detaching thread.

Looks good now except for the points already mentioned by @dholmes-ora .

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PR Comment: https://git.openjdk.org/jdk/pull/13814#issuecomment-1547855460