RFR: 7903740: JMH: Perf event validation not working with skid options [v2]

[Galder Zamarreño]

On Wed, 14 Aug 2024 08:51:13 GMT, Galder Zamarreño <galder at openjdk.org> wrote:

>> Fixes https://bugs.openjdk.org/browse/CODETOOLS-7903740
>
> Galder Zamarreño has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - --log-fd not valid for perf record
>  - Switch to testing with perf record

Ok, let's see what CI thinks about this.

It checks if the `perf record` command shows that no data was recorded. This only works if we explicitly tell `perf record` to record to an output file, otherwise it seems no `perf.data` is generated regardless, and the command output always shows that no data was captured.

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PR Comment: https://git.openjdk.org/jmh/pull/132#issuecomment-2293200399