JDK-7039731 : arraycopy could use prefetch on SPARC
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 6u23
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • OS: solaris_nevada
  • CPU: sparc
  • Submitted: 2011-04-26
  • Updated: 2011-11-28
  • Resolved: 2011-11-28
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JDK 7 JDK 8 Other
7u2Fixed 8Fixed hs22Fixed
Description
It should be possible to optimize arraycopy to improve copy performance - Pl. see comments for more details.

Comments
EVALUATION See main CR
14-09-2011

EVALUATION http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/2f9b79ddb05c
08-09-2011

PUBLIC COMMENTS Use BIS and prefetch in arraycopy stubs for Sparc (BIS for T4 only).
06-09-2011

EVALUATION http://hg.openjdk.java.net/hsx/hotspot-comp/hotspot/rev/2f9b79ddb05c
03-09-2011