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Add a performance testing for the LongHashFunction using JMH #79

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Add a performance testing for the LongHashFunction using JMH #79

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@gnodet gnodet commented Apr 5, 2023 •
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This provides a simple performance test based on JMH for the LongHashFunction implementations.
Here's the results on my laptop using OpenJDK 17.0.6:

Benchmark                               Mode  Cnt     Score     Error   Units
PerfTest.benchmarkCityAndFarmHash_1_1  thrpt    3  1946.640 ±  80.873  ops/ms
PerfTest.benchmarkMetroHash            thrpt    3  2403.670 ±  76.122  ops/ms
PerfTest.benchmarkMurmurHash_3         thrpt    3   727.741 ±  12.797  ops/ms
PerfTest.benchmarkXXH3                 thrpt    3  1879.180 ± 215.720  ops/ms
PerfTest.benchmarkXxHash               thrpt    3  1714.654 ± 232.981  ops/ms
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