RFR: 7903722: JMH: Add xctrace-based perfnorm profiler for macOS [v2]

[Filipp Zhinkin]

On Mon, 23 Sep 2024 15:48:19 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> The large `CORE_ACTIVE_CYCLE/INST_ALL` are not great: too long? See how Linux perfnorm reports them, e.g. `clks/insns`.

I'll use aliases similar to what `perf_events` provides, then.

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PR Comment: https://git.openjdk.org/jmh/pull/131#issuecomment-2368742468