> With this change it becomes possible to surface various cgroup level metrics > (available via `jdk.internal.platform.Metrics`) as JFR events. > > Only a subset of the metrics exposed by `jdk.internal.platform.Metrics` is > turned into JFR events to start with. > * CPU related metrics > * Memory related metrics > * I/O related metrics > > For each of those subsystems a configuration data will be emitted as well. > The initial proposal is to emit the configuration data events at least once > per chunk and the metrics values at 30 seconds interval. > By using these values the emitted events seem to contain useful information > without increasing overhead (the metrics values are read from `/proc` > filesystem so that should not be done too frequently).
Jaroslav Bachorik has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 11 additional commits since the last revision: - Fix event metadata - Small fixes - Remove trailing spaces - Doh - Report container type and register events conditionally - Remove unused test files - Initial test support for JFR container events - Update the JFR control files - Split off the CPU throttling metrics - Formatting spaces - ... and 1 more: https://git.openjdk.java.net/jdk/compare/2f8f5ce3...c3fa274c ------------- Changes: - all: https://git.openjdk.java.net/jdk/pull/3126/files - new: https://git.openjdk.java.net/jdk/pull/3126/files/fddd1727..c3fa274c Webrevs: - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3126&range=11 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3126&range=10-11 Stats: 638229 lines in 6576 files changed: 92464 ins; 530978 del; 14787 mod Patch: https://git.openjdk.java.net/jdk/pull/3126.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/3126/head:pull/3126 PR: https://git.openjdk.java.net/jdk/pull/3126
