On Mon, 12 Aug 2024 14:01:29 GMT, Robert Toyonaga <d...@openjdk.org> wrote:
> ### Summary > This PR splits up NMT memory counter classes into "live" and "flat" versions. > Currently, the same classes are used and reused in both live (recording) and > snapshotted (reporting) contexts. However, after counters have been > shapshotted, they no longer need to be atomic or require things like peak > updating. "Live" classes are now atomic and have methods needed for recording > allocation/dealocation and updating peaks. "Flat" classes basically just hold > data to later be reported, are not atomic, and only have methods for > retrieving data. > > I've also made all counters in `LiveVirtualMemory` update atomically, when > previously only the peaks in `VirtualMemory` were updated atomically. > > **Testing** > - tier1 > - jdk/test/hotspot/jtreg/gtest/NMTGtests.java > - jdk/test/jdk/jdk/jfr/event/runtime/TestNativeMemoryUsageEvents.java This pull request has been closed without being integrated. ------------- PR: https://git.openjdk.org/jdk/pull/20550
