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@PragTob
Created Mar 8, 2022
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Benchee reduction counting example
list = Enum.to_list(1..10_000)
map_fun = fn i -> [i, i * i] end
Benchee.run(
%{
"flat_map" => fn -> Enum.flat_map(list, map_fun) end,
"map.flatten" => fn -> list |> Enum.map(map_fun) |> List.flatten() end
},
reduction_time: 2
)
Operating System: Linux
CPU Information: AMD Ryzen 9 5900X 12-Core Processor
Number of Available Cores: 24
Available memory: 31.27 GB
Elixir 1.13.3
Erlang 24.2.1
Benchmark suite executing with the following configuration:
warmup: 2 s
time: 5 s
memory time: 0 ns
reduction time: 2 s
parallel: 1
inputs: none specified
Estimated total run time: 18 s
Benchmarking flat_map ...
Benchmarking map.flatten ...
Name ips average deviation median 99th %
flat_map 3.52 K 283.95 μs ±10.98% 279.09 μs 500.28 μs
map.flatten 2.26 K 441.58 μs ±20.43% 410.51 μs 680.60 μs
Comparison:
flat_map 3.52 K
map.flatten 2.26 K - 1.56x slower +157.64 μs
Reduction count statistics:
Name Reduction count
flat_map 65.01 K
map.flatten 124.52 K - 1.92x reduction count +59.51 K
**All measurements for reduction count were the same**
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