• Bill O'Farrell's avatar
    math/big: uses SIMD for some math big functions on s390x · 1e6b12a2
    Bill O'Farrell authored
    The following benchmarks are improved by the amounts shown
    (Others unaffected beyond the level of noise.)
    Also adds a test to confirm non-SIMD implementation still correct,
    even when run on SIMD-capable machine
    
    Benchmark                   old            new
    BenchmarkAddVV/100-18    66148.08 MB/s 117546.19 MB/s 1.8x
    BenchmarkAddVV/1000-18   70168.27 MB/s 133478.96 MB/s 1.9x
    BenchmarkAddVV/10000-18  67489.80 MB/s 100010.79 MB/s 1.5x
    BenchmarkAddVV/100000-18 54329.99 MB/s  69232.45 MB/s 1.3x
    BenchmarkAddVW/100-18     9929.10 MB/s  14841.31 MB/s 1.5x
    BenchmarkAddVW/1000-18   10583.31 MB/s  18674.44 MB/s 1.76x
    BenchmarkAddVW/10000-18  10521.15 MB/s  17484.10 MB/s 1.66x
    BenchmarkAddVW/100000-18 10616.56 MB/s  18084.27 MB/s 1.7x
    
    Change-Id: Ic9234c41a43f6c5e9d0e9377de8b4deeefc428a7
    Reviewed-on: https://go-review.googlesource.com/32211Reviewed-by: 's avatarBrad Fitzpatrick <bradfitz@golang.org>
    Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
    TryBot-Result: Gobot Gobot <gobot@golang.org>
    1e6b12a2
arith_decl_s390x.go 791 Bytes