JDK-8172918 : Investigate ways to push Update RS work into the concurrent phase
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 9
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2017-01-17
  • Updated: 2019-02-11
The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

To download the current JDK release, click here.
Other
tbdUnresolved
Description
Often Update RS is quite high, and there is desire to push more work into the concurrent phase.

There is G1UpdateRSTimePercent (or so) that should actually help with this, but many times it is ineffective. The only thing you can do, if still possible, is increasing heap region size.

Often however, at the heap sizes Update RS becomes a problem, heap region size is already maxed out.

Investigate on how to give the user a tool to reduce update rs time.