Benchmark for testing implementations of Enumerable.count/1 for File.Stream.
$ mix run benchmark.exs
On a mid 2015 MacBook Pro with 4 cores 2.2 GHz i7 and 16GB RAM.
Erlang/OTP 19 [erts-8.2] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:10] [hipe] [kernel-poll:false]
Elixir 1.5.0-dev
Benchmark suite executing with the following configuration:
warmup: 2.0s
time: 10.0s
parallel: 1
inputs: Huge (1000000 lines), Medium (10000 lines), Small (100 lines)
Estimated total run time: 144.0s
Benchmarking with input Huge (1000000 lines):
Benchmarking current...
Benchmarking proposed...
Benchmarking read_line...
Benchmarking recur_count...
Benchmarking with input Medium (10000 lines):
Benchmarking current...
Benchmarking proposed...
Benchmarking read_line...
Benchmarking recur_count...
Benchmarking with input Small (100 lines):
Benchmarking current...
Benchmarking proposed...
Benchmarking read_line...
Benchmarking recur_count...
##### With input Huge (1000000 lines) #####
Name ips average deviation median
proposed 4.02 248.64 ms ±3.62% 248.58 ms
recur_count 3.40 294.41 ms ±4.37% 290.18 ms
read_line 1.22 817.86 ms ±3.91% 806.50 ms
current 1.08 925.23 ms ±5.24% 911.27 ms
Comparison:
proposed 4.02
recur_count 3.40 - 1.18x slower
read_line 1.22 - 3.29x slower
current 1.08 - 3.72x slower
##### With input Medium (10000 lines) #####
Name ips average deviation median
proposed 452.59 2.21 ms ±11.83% 2.15 ms
recur_count 313.31 3.19 ms ±6.88% 3.15 ms
read_line 109.97 9.09 ms ±6.11% 8.94 ms
current 101.86 9.82 ms ±14.58% 9.45 ms
Comparison:
proposed 452.59
recur_count 313.31 - 1.44x slower
read_line 109.97 - 4.12x slower
current 101.86 - 4.44x slower
##### With input Small (100 lines) #####
Name ips average deviation median
proposed 13.59 K 73.61 μs ±29.75% 68.00 μs
recur_count 11.99 K 83.41 μs ±27.13% 77.00 μs
read_line 6.49 K 154.07 μs ±22.86% 142.00 μs
current 5.83 K 171.60 μs ±41.22% 157.00 μs
Comparison:
proposed 13.59 K
recur_count 11.99 K - 1.13x slower
read_line 6.49 K - 2.09x slower
current 5.83 K - 2.33x slower
The test files are borrowed from https://github.com/bbense/beatwc