RFR: 8291729: Reduce runtime of vm.compiler microbenchmarks

[Vladimir Kozlov]

On Wed, 3 Aug 2022 13:51:41 GMT, Eric Caspole <ecaspole at openjdk.org> wrote:

> The current run time is about 1 day 6 hours. With these changes the default run time is reduced to about 5h45m with results consistent enough for weekly testing based on internal testing.

Good.

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Marked as reviewed by kvn (Reviewer).

PR: https://git.openjdk.org/jdk/pull/9728