Created
November 10, 2025 00:02
-
-
Save SamSaffron/e708b25685f93a99233b9f450ce82ff0 to your computer and use it in GitHub Desktop.
env_lookup.rb
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # frozen_string_literal: true | |
| require "benchmark" | |
| require "memory_profiler" | |
| require "active_support" | |
| require "active_support/core_ext/object/blank" | |
| def test_fast | |
| @cache = ENV["TESTING"].presence if !defined?(@cache) | |
| @cache | |
| end | |
| def test_slow | |
| ENV["TESTING"].presence | |
| end | |
| ENV["TESTING"] = "123" | |
| MemoryProfiler.report { 100.times { test_fast } }.pretty_print | |
| # Allocated String Report | |
| # ----------------------------------- | |
| # 1 "123" | |
| MemoryProfiler.report { 100.times { test_slow } }.pretty_print | |
| # Allocated String Report | |
| # ----------------------------------- | |
| # 100 "123" | |
| Benchmark.bmbm do |x| | |
| x.report("fast") do | |
| i = 1000 | |
| while i > 0 | |
| test_fast | |
| i -= 1 | |
| end | |
| end | |
| x.report("slow") do | |
| i = 1000 | |
| while i > 0 | |
| test_slow | |
| i -= 1 | |
| end | |
| end | |
| end | |
| # user system total real | |
| # fast 0.000020 0.000000 0.000020 ( 0.000020) | |
| # slow 0.000202 0.000000 0.000202 ( 0.000201) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment