Integrated: 8314438: NMT: Performance benchmarks are needed to have a baseline for comparison of improvements

[Afshin Zafari]

On Tue, 5 Sep 2023 07:53:36 GMT, Afshin Zafari <azafari at openjdk.org> wrote:

> A new benchmark for  measuring the NMT overhead in `summary` and `detail` modes.
> The tests are run using: 
> 
> make CONF=debug test TEST="micro:java.vm.runtime.NMTBenchmark" MICRO="RESULTS_FORMAT=json"
> 
> The results are written to a JSON file that can be visualized using [JMH Visualizer](https://jmh.morethan.io/).
> 
> ### Notes
> A separate [issue](https://bugs.openjdk.org/browse/JDK-8316814) is created for preparing a progfram for validating and analyzing the JMH outputs.
> Another separate [issue](https://bugs.openjdk.org/browse/JDK-8316813) is created for measuring the virtual memory tracing parts of NMT.

This pull request has now been integrated.

Changeset: 138437f2
Author:    Afshin Zafari <azafari at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/138437f2cf4e965ba07212a10589a517f81623a8
Stats:     253 lines in 2 files changed: 253 ins; 0 del; 0 mod

8314438: NMT: Performance benchmarks are needed to have a baseline for comparison of improvements

Reviewed-by: gziemski, ihse

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PR: https://git.openjdk.org/jdk/pull/15563