Ruby(2.3.1) Benchmark-IPS: Windows 10 and WSL

benchmark-ips.rb

# https://github.com/evanphx/benchmark-ips
require 'benchmark/ips'

Benchmark.ips do |x|
  # Configure the number of seconds used during
  # the warmup phase (default 2) and calculation phase (default 5)
  x.config(:time => 5, :warmup => 2)

  # These parameters can also be configured this way
  x.time = 5
  x.warmup = 2

  # Typical mode, runs the block as many times as it can
  x.report("addition") { 1 + 2 }

  # To reduce overhead, the number of iterations is passed in
  # and the block must run the code the specific number of times.
  # Used for when the workload is very small and any overhead
  # introduces incorrectable errors.
  x.report("addition2") do |times|
    i = 0
    while i < times
      1 + 2
      i += 1
    end
  end

  # To reduce overhead even more, grafts the code given into
  # the loop that performs the iterations internally to reduce
  # overhead. Typically not needed, use the |times| form instead.
  x.report("addition3", "1 + 2")

  # Really long labels should be formatted correctly
  x.report("addition-test-long-label") { 1 + 2 }

  # Compare the iterations per second of the various reports!
  x.compare!
end

win10_output.txt

// Windows 10
Warming up --------------------------------------
            addition   181.926k i/100ms
           addition2   182.792k i/100ms
           addition3   248.113k i/100ms
addition-test-long-label
                       176.710k i/100ms
Calculating -------------------------------------
            addition      8.576M (± 2.4%) i/s -     42.935M in   5.009042s
           addition2     25.136M (± 5.1%) i/s -    125.395M in   5.005303s
           addition3     23.727M (± 9.9%) i/s -    117.357M in   5.003721s
addition-test-long-label
                          8.615M (± 2.6%) i/s -     43.117M in   5.008447s

Comparison:
           addition2: 25136275.3 i/s
           addition3: 23726965.0 i/s - same-ish: difference falls within error
addition-test-long-label:  8615012.4 i/s - 2.92x  slower
            addition:  8576381.9 i/s - 2.93x  slower
            

wsl_output.txt

// WSL
Warming up --------------------------------------
            addition   129.880k i/100ms
           addition2   126.350k i/100ms
           addition3   154.878k i/100ms
addition-test-long-label
                       131.466k i/100ms
Calculating -------------------------------------
            addition      9.606M (± 4.6%) i/s -     47.926M in   5.000607s
           addition2     29.149M (± 3.6%) i/s -    145.555M in   5.001931s
           addition3     27.600M (± 5.8%) i/s -    137.377M in   5.001184s
addition-test-long-label
                          9.646M (± 3.6%) i/s -     48.248M in   5.008798s

Comparison:
           addition2: 29149485.9 i/s
           addition3: 27599531.8 i/s - same-ish: difference falls within error
addition-test-long-label:  9645942.7 i/s - 3.02x  slower
            addition:  9605853.9 i/s - 3.03x  slower