RFR: 8257074 Update the ByteBuffers micro benchmark [v4]

[Jorn Vernee]

On Thu, 10 Dec 2020 09:46:07 GMT, Chris Hegarty <chegar at openjdk.org> wrote:

>> Marked as reviewed by bpb (Reviewer).
>
> While the updated set of scenarios covered by this benchmark is
> reasonably (and vastly improves coverage), I find myself reluctant to
> add the last remaining buffer property - read-only views. It's time to
> template the generation of this code!

If the cases get to be too many, you might also want to consider splitting the benchmark class into several classes that cover different cases (we did this for the memory access benchmarks as well). That would also make it easier to run a subset of cases in isolation.

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PR: https://git.openjdk.java.net/jdk/pull/1430