RFR: JDK-8297959: Provide better descriptions for some Operating System JFR events [v3]

[Matthias Baesken]

On Mon, 5 Dec 2022 08:43:07 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> Some Operating System JFR events currently lack descriptions , this could be improved.
>> See for example https://sap.github.io/SapMachine/jfrevents/20.html#osinformation
>
> Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:
> 
>   small description adjustments

Thanks for the reviews !

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PR: https://git.openjdk.org/jdk/pull/11478