List.zip/1 vs Enum.zip/1

Author: sabiwara

bench/list_zip.exs

@@ -0,0 +1,13 @@
+inputs =
+  for length <- [10, 100], count <- [10, 100] do
+    {"#{count} * #{length}", Enum.chunk_every(1..(length * count), length)}
+  end
+
+Benchee.run(
+  %{
+    "List.zip/1" => &List.zip/1,
+    "Enum.zip/1" => &Enum.zip/1
+  },
+  memory_time: 0.5,
+  inputs: inputs
+)

bench/list_zip.results.txt

@@ -0,0 +1,92 @@
+Operating System: macOS
+CPU Information: Apple M1
+Number of Available Cores: 8
+Available memory: 16 GB
+Elixir 1.17.2
+Erlang 27.0
+
+Benchmark suite executing with the following configuration:
+warmup: 2 s
+time: 5 s
+memory time: 500 ms
+reduction time: 0 ns
+parallel: 1
+inputs: 10 * 10, 100 * 10, 10 * 100, 100 * 100
+Estimated total run time: 1 min
+
+Benchmarking Enum.zip/1 with input 10 * 10 ...
+Benchmarking Enum.zip/1 with input 100 * 10 ...
+Benchmarking Enum.zip/1 with input 10 * 100 ...
+Benchmarking Enum.zip/1 with input 100 * 100 ...
+Benchmarking List.zip/1 with input 10 * 10 ...
+Benchmarking List.zip/1 with input 100 * 10 ...
+Benchmarking List.zip/1 with input 10 * 100 ...
+Benchmarking List.zip/1 with input 100 * 100 ...
+
+##### With input 10 * 10 #####
+Name                 ips        average  deviation         median         99th %
+Enum.zip/1        1.06 M        0.94 μs  ±4171.12%        0.75 μs        1.88 μs
+List.zip/1        0.69 M        1.45 μs  ±1971.96%        1.29 μs        2.58 μs
+
+Comparison: 
+Enum.zip/1        1.06 M
+List.zip/1        0.69 M - 1.54x slower +0.51 μs
+
+Memory usage statistics:
+
+Name          Memory usage
+Enum.zip/1         8.01 KB
+List.zip/1        10.98 KB - 1.37x memory usage +2.98 KB
+
+**All measurements for memory usage were the same**
+
+##### With input 100 * 10 #####
+Name                 ips        average  deviation         median         99th %
+Enum.zip/1      120.91 K        8.27 μs   ±175.70%        7.63 μs       16.88 μs
+List.zip/1       59.51 K       16.80 μs    ±24.36%       16.33 μs       23.50 μs
+
+Comparison: 
+Enum.zip/1      120.91 K
+List.zip/1       59.51 K - 2.03x slower +8.53 μs
+
+Memory usage statistics:
+
+Name          Memory usage
+Enum.zip/1        69.57 KB
+List.zip/1       105.43 KB - 1.52x memory usage +35.86 KB
+
+**All measurements for memory usage were the same**
+
+##### With input 10 * 100 #####
+Name                 ips        average  deviation         median         99th %
+Enum.zip/1      120.19 K        8.32 μs   ±360.77%        7.13 μs       26.71 μs
+List.zip/1       80.48 K       12.43 μs    ±14.65%       12.13 μs       14.75 μs
+
+Comparison: 
+Enum.zip/1      120.19 K
+List.zip/1       80.48 K - 1.49x slower +4.10 μs
+
+Memory usage statistics:
+
+Name          Memory usage
+Enum.zip/1        79.02 KB
+List.zip/1       108.14 KB - 1.37x memory usage +29.12 KB
+
+**All measurements for memory usage were the same**
+
+##### With input 100 * 100 #####
+Name                 ips        average  deviation         median         99th %
+Enum.zip/1       12.77 K       78.31 μs    ±20.22%       76.88 μs      110.38 μs
+List.zip/1        6.05 K      165.21 μs    ±20.30%      161.38 μs      325.14 μs
+
+Comparison: 
+Enum.zip/1       12.77 K
+List.zip/1        6.05 K - 2.11x slower +86.90 μs
+
+Memory usage statistics:
+
+Name          Memory usage
+Enum.zip/1       703.09 KB
+List.zip/1      1021.02 KB - 1.45x memory usage +317.93 KB
+
+**All measurements for memory usage were the same**