https://erlang.org/doc/man/persistent_term.html
Operating System: Linux
CPU Information: Intel(R) Core(TM) i7-7820HQ CPU @ 2.90GHz
Number of Available Cores: 8
Available memory: 31.34 GB
Elixir 1.10.2
Erlang 22.3.2
Benchmark suite executing with the following configuration:
warmup: 2 s
time: 5 s
memory time: 0 ns
parallel: 1
inputs: none specified
Estimated total run time: 21 s
Benchmarking :persistent_term.get...
Benchmarking Application.fetch_env!...
Benchmarking System.get_env...
Name ips average deviation median 99th %
:persistent_term.get 25.58 M 39.09 ns ±1083.89% 28 ns 105 ns
Application.fetch_env! 3.68 M 271.67 ns ±5645.43% 204 ns 549 ns
System.get_env 2.08 M 481.78 ns ±4130.15% 327 ns 708 ns
Comparison:
:persistent_term.get 25.58 M
Application.fetch_env! 3.68 M - 6.95x slower +232.58 ns
System.get_env 2.08 M - 12.33x slower +442.69 ns