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  1. JDK
  2. JDK-8134553

CRC32C implementations for x86/x64 targets

    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P3
    • Resolution: Fixed
    • Affects Version/s: 9
    • Fix Version/s: 9
    • Component/s: hotspot
    • Labels:
      None
    • Subcomponent:
    • Resolved In Build:
      b89
    • CPU:
      x86
    • OS:
      generic

      Backports

        Description

        Efficient use of a crc32 hardware instruction by division of a problem to a predefined chunks of an increasing size and further by 3 to be computed hiding instruction latencies. Changes for x86 deliver up to 8x improvement vs. legacy java library, x64 deliver up to 16x improvement.

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                • Assignee:
                  mcberg Michael Berg
                  Reporter:
                  mcberg Michael Berg
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                  Dates

                  • Due:
                    Created:
                    Updated:
                    Resolved:

                    Time Tracking

                    Estimated:
                    Original Estimate - 12 weeks
                    12w
                    Remaining:
                    Remaining Estimate - 1 week
                    1w
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