Integrated: 8287785: Reduce runtime of java.lang.invoke microbenchmarks

Tue Jun 7 07:29:10 UTC 2022

On Fri, 3 Jun 2022 11:16:29 GMT, Claes Redestad <redestad at openjdk.org> wrote:

> - Add explicit run configurations to java.lang.invoke micros, aiming to reduce runtime while maintaining a decently high confidence that there's enough warmup to produce good enough data.
> 
> - Remove several trivial baseline micros, mainly those that only return a static object: It's reasonable to have baseline microbenchmarks when the baseline op is complex and you're mostly interested in checking the overhead of doing the same thing via some MH API, but blackhole operations are now shortcutting very quickly and timings doesn't differ from one type of object to another, so we don't need a multitude of such baseline tests.
> 
> Estimated runtime of `make test TEST=micro:java.lang.micro` (excluding build) drops from just above 28 to just above 3 hours.

This pull request has now been integrated.

Changeset: 42261d75
Author:    Claes Redestad <redestad at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/42261d752a140325496ffdd40d9ad62b189d1b3e
Stats:     439 lines in 47 files changed: 276 ins; 153 del; 10 mod

8287785: Reduce runtime of java.lang.invoke microbenchmarks

Reviewed-by: mchung

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PR: https://git.openjdk.java.net/jdk/pull/9012