JDK-8313870 : Improve itable lookup from interpreter
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 22
  • Priority: P4
  • Status: Closed
  • Resolution: Won't Fix
  • Submitted: 2023-08-07
  • Updated: 2025-01-10
  • Resolved: 2025-01-10
Related Reports
Relates :  
JDK-8331341 - secondary_super_cache does not scale well: C1 and interpreter
Description
JDK-8307352 and JDK-8305959 replace two iterations on the itable with a single one in the itable_stubs called from the compiled code. TemplateTable::invokeinterface cannot benefit from this optimization along the way because it has another assembler code in between two lookup_interface_method() calls. We may implement the enhancement for the interpreter as well.
Comments
Runtime Triage: This is not on our current list of priorities. We will consider this feature if we receive additional customer requirements.
10-01-2025
We may, but it's unlikely to be worthwhile.
30-08-2024