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

[Galder Zamarreño]

On Fri, 19 Jul 2024 13:44:11 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> 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
>
> Okay, so the point for initialization checks to fail early, before we actually get to executing benchmarks. What would happen when event with option is not supported by `perf record`? Suppose `events` is supported and `events:ppp` is not. We check `events` and it works, we proceed to using `events:ppp` at runtime and fail.
> 
> Since there is an apparent discrepancy between what `perf record` and `perf stat` accept, I think we need to validate with `perf record` then. Something easy, like `perf record -e ... echo 1` would likely work well?

@shipilev Updated the PR with your proposed fix.

-------------

PR Comment: https://git.openjdk.org/jmh/pull/132#issuecomment-2288203385