JDK-8312043 : Regression ~3% in jvm2008 Compress in 19-b30 aarch64 only
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 19,20,21,22
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • CPU: aarch64
  • Submitted: 2023-07-13
  • Updated: 2023-07-17
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JDK 22
22Unresolved
Related Reports
Relates :  
JDK-8280320 - C2: Loop opts are missing during OSR compilation
Description
We just noticed this regression, it carried on to the 19 GA.
I rebuilt the CI builds from those days and made a trend to track it to JDK-8280320.
Comments
ILW = Performance regression in single benchmark, aarch64 only and single benchmark, no known workaround = MLH = P4
14-07-2023