Withdrawn: 8334904: Add some perf counters to monitor the usage of VM locks

[duke]

On Fri, 28 Jun 2024 23:30:45 GMT, Calvin Cheung <ccheung at openjdk.org> wrote:

> Adding a few perf counters to monitor the usage of VM locks. The counters include hold time, wait time, and number of events. They can be enabled via `-Xlog:pref+vmlocks`.
> 
> Please refer to the [comment](https://bugs.openjdk.org/browse/JDK-8334904?focusedId=14684322&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14684322) in the bug report for an example output.
> 
> Passed tiers 1 - 4 testing.

This pull request has been closed without being integrated.

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PR: https://git.openjdk.org/jdk/pull/19954