JDK-8140777 : Make Adaptive IHOP logging information the same as JFR logging
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 9
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2015-10-29
  • Updated: 2018-06-21
  • Resolved: 2016-02-26
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JDK 9
9 b110Fixed
Related Reports
Relates :  
JDK-8136677 - Adaptive sizing for IHOP in G1
Relates :  
JDK-8059805 - JEP 271: Unified GC Logging
Relates :  
JDK-8136678 - Implement adaptive sizing algorithm for IHOP
Description
JDK-8136677 added the capability of G1 to dynamically adjust the IHOP. This added a few log messages enabled by -XX:+PrintAdaptiveSizePolicy.

The JFR events in JDK-8136678 provide more information than the logging. That has been left out because of shortcomings of the ergo framework.

With the new unified logging for GC (JDK-8059805) this should be fixed.
Comments
Also add output that shows the current *absolute* IHOP value, i.e. IHOP relative to the total capacity.
16-11-2015