On Mon, 2 Sep 2024 12:25:05 GMT, Alan Bateman <al...@openjdk.org> wrote:
> This PR proposes to add a JDK-specific monitoring and management interface > for the virtual thread scheduler. The interface is named > VirtualThreadSchedulerMXBean and allows JMX based tooling monitor/manage the > scheduler's target parallelism and monitor thread counts. > > The JDK 5/6 era JDK-specific management interfaces are in > jdk.management/com.sun.management. The proposal here is to start afresh in > the jdk.management package, thus establishing a "new home" for JDK-specific > management interfaces going forward. > > jdk.test.lib.thread.VThreadRunner is test infrastructure used by several > tests to set or ensure some level of parallelism. This is changed from using > deep reflection to using the MXBean to access the target parallelism, which > requires changes to the `@modules` tag tests in a number of tests (some tests > no longer need to open java.base/java.lang). > > (The changes proposed here have been in the loom repo for some time. A > related command for the jcmd tool is also in that repo and will be proposed > separately). > > Testing: tier1-4 This pull request has now been integrated. Changeset: 7e2bcf6d Author: Alan Bateman <al...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/7e2bcf6d0010161dfbc50da4031e65cb5482fb77 Stats: 728 lines in 23 files changed: 675 ins; 17 del; 36 mod 8338890: Add monitoring/management interface for the virtual thread scheduler Reviewed-by: kevinw ------------- PR: https://git.openjdk.org/jdk/pull/20816
