RFR: 8301641: NativeMemoryUsageTotal event uses reserved value for committed field

[Stefan Karlsson]

On Wed, 1 Feb 2023 22:00:47 GMT, Stefan Johansson <sjohanss at openjdk.org> wrote:

> Please review this small fix for the NativeMemoryUsageTotal JFR event.
> 
> **Summary**
> The NativeMemoryUsageTotal event uses the reserved value for both reserved and committed.
> 
> **Testing**
> Added new test and verified that it works locally. Now running it in mach5 to make sure it doesn't see any unexpected issues there.

Marked as reviewed by stefank (Reviewer).

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PR: https://git.openjdk.org/jdk/pull/12377