On Wed, 31 Jan 2024 11:48:05 GMT, Matthias Baesken <mbaesken@openjdk.org> wrote:
Total and free swap space should be recorded in JFR, because it is important to know e.g. in case of memory shortages.
Currently we only have a container related event (ContainerMemoryUsage) that provides some info but no general event. PhysicalMemory could be enhanced or a new event added.
There is already some coding (see Java_com_sun_management_internal_OperatingSystemImpl_getTotalSwapSpaceSize0 and Java_com_sun_management_internal_OperatingSystemImpl_getFreeSwapSpaceSize0) for the swap space info retrieval.
Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:
Adjust test
Looks good now. ------------- Marked as reviewed by lucy (Reviewer). PR Review: https://git.openjdk.org/jdk/pull/17581#pullrequestreview-1856404170