https://twitter.com/julia_kizi/status/1400703388363468801

In [1]:

using BenchmarkHistograms

In [2]:

A = randn(10^5)

f(A) = min(A...)
g(A) = minimum(A)

Out[2]:

g (generic function with 1 method)

In [3]:

@benchmark f($A)

Out[3]:

samples: 877; evals/sample: 1; memory estimate: 5.34 MiB; allocs estimate: 200003
ns

 (4.48e6  - 5.08e6 ]  ████████▉154
 (5.08e6  - 5.69e6 ]  ██████████████████████████████ 523
 (5.69e6  - 6.29e6 ]  ████68
 (6.29e6  - 6.9e6  ]  █▌24
 (6.9e6   - 7.5e6  ]  █▎20
 (7.5e6   - 8.1e6  ]  ██33
 (8.1e6   - 8.71e6 ]  █▌24
 (8.71e6  - 9.31e6 ]  █17
 (9.31e6  - 9.92e6 ]  ▋10
 (9.92e6  - 1.052e7]  ▏2
 (1.052e7 - 1.113e7]  ▏2

                  Counts

min: 4.475 ms (0.00% GC); mean: 5.690 ms (6.20% GC); median: 5.306 ms (0.00% GC); max: 11.130 ms (0.00% GC).

In [4]:

@benchmark g($A)

Out[4]:

samples: 10000; evals/sample: 1; memory estimate: 0 bytes; allocs estimate: 0
ns

 (48100.0  - 53500.0 ]  ██████████████████████████████ 8101
 (53500.0  - 58900.0 ]  ███▏814
 (58900.0  - 64300.0 ]  ▎64
 (64300.0  - 69700.0 ]  █▍346
 (69700.0  - 75100.0 ]  █▎319
 (75100.0  - 80500.0 ]  ▏29
 (80500.0  - 85900.0 ]  ▌102
 (85900.0  - 91200.0 ]  ▋146
 (91200.0  - 96600.0 ]  ▏29
 (96600.0  - 102000.0]  ▏12
 (102000.0 - 107400.0]  ▏15
 (107400.0 - 112800.0]  ▏8
 (112800.0 - 118200.0]  ▏2
 (118200.0 - 123600.0]  ▏3
 (123600.0 - 164600.0]  ▏10

                  Counts

min: 48.100 μs (0.00% GC); mean: 54.065 μs (0.00% GC); median: 51.700 μs (0.00% GC); max: 164.600 μs (0.00% GC).

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