RFR: 8351142: Add JFR monitor deflation and statistics events [v3]

[Aleksey Shipilev]

On Mon, 10 Mar 2025 10:04:54 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Looking around other stats in the metadata.xml, maybe a better name for it is peakCount?

Yeah, I think it should be `peakCount`. Changed in new version.

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PR Comment: https://git.openjdk.org/jdk/pull/23900#issuecomment-2717696362