RFR: 8348402: PerfDataManager stalls shutdown for 1ms

[Aleksey Shipilev]

On Fri, 24 Jan 2025 17:40:50 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> I tried to use these perf counters in ObjectMonitor to analyze performance of monitor locking once and I found them almost completely useless. JFR provides a much better set of counters and way to visualize them. Is anyone using these? Can we create a CSR to just delete them?

I don't mind removing these counters. I have found them seldom useful. JMH used to to ship the profiler that polled them, but we eventually removed those profilers. My cursory search through GitHub did not reveal much use.

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PR Comment: https://git.openjdk.org/jdk/pull/23293#issuecomment-2618382236