JDK-8177126 : Release Note: Remove per-compiler performance counters
  • Type: Sub-task
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 9
  • Priority: P4
  • Status: Closed
  • Resolution: Delivered
  • Submitted: 2017-03-20
  • Updated: 2019-09-13
  • Resolved: 2017-03-20
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JDK 9
9Resolved
Description
Per-thread compiler performance counters have been removed because they became obsolete in the presence of more fine-grained and precise compilation events. The corresponding interface in `sun.management.*` has been deprecated since it will no longer provide information without the performance counters. Users can get similar or more fine-grained information via global performance counters, the event tracing API (JFR) or `-XX:+PrintCompilation`.
Comments
Thanks for the review, Zoltan!
20-03-2017
The title and text below look good to me. "Remove per-compiler performance counters Per-thread compiler performance counters have been removed because they became obsolete in the presence of more fine-grained and precise compilation events. The corresponding interface in `sun.management.*` has been deprecated since it will no longer provide information without the performance counters. Users can get similar or more fine-grained information via global performance counters, the event tracing API (JFR) or `-XX:+PrintCompilation`. "
20-03-2017
Hi Claes, could you write a release note for this change? If not, please just re-assign to me. Thanks, Tobias
20-03-2017