JDK-8164002 : Add a new CPU family (S_family) for SPARC S7 and above processors
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 7u111,8u102,9
  • Priority: P2
  • Status: Closed
  • Resolution: Fixed
  • OS: solaris
  • CPU: sparc,sparc_64
  • Submitted: 2016-08-13
  • Updated: 2018-02-08
  • Resolved: 2017-05-18
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JDK 7 JDK 8 JDK 9
7u141Fixed 8u131Fixed 9Fixed
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Description
The new SPARC S7 scale-out line of processors are based on Core S4 (which SPARC T7/M7 processors are based on too) but are identified as SPARC-S7 via kstat's "implementation" attribute. HotSpot should recognize this line of processors as a new family, e.g. S_family and initialize JVM optimizations/ergo flags appropriately.
Comments
A similar issue is seen when running Java in an LDOM.
10-10-2016

And backport to 8u and 7u.
07-10-2016

Yes, please, fix it in jdk 9.
07-10-2016