• Bryan C. Mills's avatar
    archive/zip: parallelize benchmarks · d0a045da
    Bryan C. Mills authored
    Add subbenchmarks for BenchmarkZip64Test with different sizes to tease
    apart construction costs vs. steady-state throughput.
    
    Results remain comparable with the non-parallel version with -cpu=1:
    
    benchmark                           old ns/op     new ns/op     delta
    BenchmarkCompressedZipGarbage       26832835      27506953      +2.51%
    BenchmarkCompressedZipGarbage-6     27172377      4321534       -84.10%
    BenchmarkZip64Test                  196758732     197765510     +0.51%
    BenchmarkZip64Test-6                193850605     192625458     -0.63%
    
    benchmark                           old allocs     new allocs     delta
    BenchmarkCompressedZipGarbage       44             44             +0.00%
    BenchmarkCompressedZipGarbage-6     44             44             +0.00%
    
    benchmark                           old bytes     new bytes     delta
    BenchmarkCompressedZipGarbage       5592          5664          +1.29%
    BenchmarkCompressedZipGarbage-6     5592          21946         +292.45%
    
    updates #18177
    
    Change-Id: Icfa359d9b1a8df5e085dacc07d2b9221b284764c
    Reviewed-on: https://go-review.googlesource.com/36719Reviewed-by: 's avatarBrad Fitzpatrick <bradfitz@golang.org>
    d0a045da
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