JDK-8237016 : Release Note: Epsilon warns about Xms/Xmx/AlwaysPreTouch configuration
  • Type: Sub-task
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 14
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2020-01-13
  • Updated: 2020-01-13
  • Resolved: 2020-01-13
Many Epsilon GC users expect low latency, but may not be aware that additional configuration is needed for GCs to perform well in those conditions. It now warns about Xms/Xmx/AlwaysPreTouch configuration. These settings are not adjusted automatically, because doing so would affect startup time. These new warnings can be shunned by overriding the default logging level with -Xlog:gc=error.