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astar: Switch from std hashmap to hashbrown #335

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astar: Switch from std hashmap to hashbrown #335

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Commits on Feb 3, 2023

  1. astar: Switch from std hashmap to hashbrown 

    This offers a 30% improvement on the benchmark with zero other changes:

a_star_test_map         time:   [24.398 µs 24.607 µs 24.873 µs]
                        change: [-31.335% -30.672% -29.858%] (p = 0.00 < 0.05)

Real-world results were similar.
    @capslock
    capslock committed Feb 3, 2023
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