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master: 91%

Ran 02 May 2018 02:53PM UTC

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Committed 02 May 2018 02:52PM UTC coverage: 92.67% (-0.2%) from 92.821%

Job # 38.5

Build Type

push

travis-ci

Committed by

corona10

Commit Message

Use bits.OnesCount64 when available

Benchmark on i7-2600k, which has the POPCNT instruction:

name                 old time/op  new time/op  delta
DistanceIdentical-8  5.08ns ± 0%  1.01ns ± 1%  -80.07%  (p=0.008 n=5+5)
DistanceDifferent-8  81.5ns ± 2%   1.0ns ± 0%  -98.76%  (p=0.016 n=5+4)

Benchmark on Cavium Octeon, a MIPS64 platform with no dedicated
instruction:

name                 old time/op  new time/op  delta
DistanceIdentical-2   120ns ± 6%   144ns ± 5%  +19.93%  (p=0.008 n=5+5)
DistanceDifferent-2   656ns ± 4%   144ns ± 4%  -78.09%  (p=0.008 n=5+5)

Run Details

177 of 191 relevant lines covered (92.67%)

192127.87 hits per line

corona10 / goimagehash / 38 / 5
91%
master: 91%

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91%
master: 91%

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