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  1. JDK
  2. JDK-6532536

Optimize arraycopy stubs for Intel cpus

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    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P3
    • Resolution: Fixed
    • Affects Version/s: 7
    • Fix Version/s: hs14
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
    • Resolved In Build:
      b06
    • CPU:
      x86
    • OS:
      solaris_10

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        Description

        Intel cpus very sensitive to data moves alignment.
        Arraycopy stubs have to be fixed to avoid such misalignment
        for these hardware.
        SSE2 movdqu nstruction performance was greatly improved on newest Intel's cpus.

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                Assignee:
                kvn Vladimir Kozlov
                Reporter:
                kvn Vladimir Kozlov
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