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Ran 26 Mar 2020 06:21AM UTC

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Committed 26 Mar 2020 06:18AM UTC coverage: 92.982% (-7.0%) from 100.0%

Job # 17.9

Build Type

Pull #2

travis-ci

Committed by

web-flow

Commit Message

Optimize merge

Rewrote the merge operations for bitstring and array types to do fewer passes
over the data and generate less intermediate garbage. The existing benchmark
shows about a 5x improvement for Hypex.merge on arrays and 2.5x on bitstrings.

Before:

  Name                                    ips        average  deviation         median         99th %
  Array Hypex.merge/1                   56.60       17.67 ms    ±12.39%       17.62 ms       24.13 ms
  Bitstring Hypex.merge/1               32.72       30.56 ms     ±5.22%       30.14 ms       37.23 ms

After:

  Name                                    ips        average  deviation         median         99th %
  Array Hypex.merge/1                  269.99        3.70 ms    ±15.78%        3.46 ms        5.71 ms
  Bitstring Hypex.merge/1               78.52       12.73 ms    ±38.13%       16.16 ms       23.30 ms

Pull Request Pull Request #2: Optimize merge

Run Details

53 of 57 relevant lines covered (92.98%)

10877.04 hits per line

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