JDK-8332602 : [s390x] Improve itable_stub
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 17,21
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • CPU: s390x
  • Submitted: 2024-05-21
  • Updated: 2024-08-29
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Other
tbdUnresolved
Related Reports
Relates :  
JDK-8332603 - [PPC64] Improve itable_stub
Relates :  
JDK-8318159 - RISC-V: Improve itable_stub
Relates :  
JDK-8307352 - AARCH64: Improve itable_stub
Relates :  
JDK-8305959 - x86: Improve itable_stub
Description
Async profiler shows that applications spend up to 10% in itable_stubs. The generated itable_stub scans itable two times while it can be done in a single pass.
Comments
Marking it as again open, because even though the port is finished we don't see that much improvement. So required to be looked further into it.
29-08-2024
A pull request was submitted for review. Branch: master URL: https://git.openjdk.org/jdk/pull/19698 Date: 2024-06-13 13:10:35 +0000
09-07-2024