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ARM Holdings plc Message Board

  • marsavian marsavian Jan 20, 2013 9:51 AM Flag

    Performance evaluation on Cortex-A7 hardware:

    gcc.1065356.n5.nabbleDOTcom/PATCH-ARM-Initial-pipeline-description-for-Cortex-A7-td899312.html

    Coremark:

    * No change compared to generic tuning even though the generated assembly is
    significantly different due to instruction scheduling.
    * Improvement compared to tuning for Cortex-A5: 4% improvement in arm mode
    and 9% improvement in thumb mode.

    CINT2000:
    * compared to generic tuning, overall improvement of 1.9%.
    * compared to tuning for Cortex-A5, overall improvement of 1.5%.
    * in both cases, all benchmarks improved except 254.gap.

    CFP2000:
    * compared to generic tuning (which doesn't do much for FP), overall
    improvement of 5.5%, all benchmarks improved.
    * compared to Cortex-A5 tuning (as pipeline descriptions are nearly
    identical) overall no change, but individual benchmarks mixed results.

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