Benchmarking input validation

benchmarks.txt

Using Ruby 2.4.1
Code being benchmarked: https://github.com/tomdalling/rschema/blob/62da91a8c6e9b4795affe6824e23f27e713a1214/benchmarks/input_validation.rb 

Warming up --------------------------------------
       RSchema 3.1.1     1.640k i/100ms
           (coerced)   673.000  i/100ms
   (built + coerced)   142.000  i/100ms
   ActiveModel 5.1.1   103.000  i/100ms
dry-validation 0.10.7
                       759.000  i/100ms
Calculating -------------------------------------
       RSchema 3.1.1     17.248k (± 5.4%) i/s -     86.920k in   5.054731s
           (coerced)      6.523k (± 5.7%) i/s -     32.977k in   5.072237s
   (built + coerced)      1.471k (± 5.6%) i/s -      7.384k in   5.036680s
   ActiveModel 5.1.1      1.085k (± 6.5%) i/s -      5.459k in   5.055067s
dry-validation 0.10.7
                          7.082k (± 6.9%) i/s -     35.673k in   5.061624s

Comparison:
       RSchema 3.1.1:    17248.0 i/s
dry-validation 0.10.7:     7082.0 i/s - 2.44x  slower
           (coerced):     6523.4 i/s - 2.64x  slower
   (built + coerced):     1470.7 i/s - 11.73x  slower
   ActiveModel 5.1.1:     1084.8 i/s - 15.90x  slower