JDK-7028394 : Newer AMD Processor Prefetch Defaults
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: hs21
  • Priority: P4
  • Status: Closed
  • Resolution: Fixed
  • OS: generic
  • CPU: x86
  • Submitted: 2011-03-17
  • Updated: 2011-04-24
  • Resolved: 2011-04-24
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JDK 7 Other
7Fixed hs21Fixed
Description
Please review this patch which changes a flag default for some
newer AMD processors.  The webrev is at

  http://cr.openjdk.java.net/~tdeneau/bd-prefetch/webrev.01/

This new default has shown improvement across many workloads.
I do not have a bug id for this.

-- Tom Deneau, AMD

Comments
EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-rt/hotspot/rev/82de9bd880e3
21-03-2011

EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/82de9bd880e3
17-03-2011