use_warmup_for_consistent_results
🔥 Implement Warmup Phases to Stabilize JIT and Caching Effects​
A warmup phase lets Ruby's VM or any JIT compiler optimize hot code paths before measurement. In benchmark-ips
, you can adjust warmup duration to ensure caches and branch predictors settle.
require 'benchmark/ips'
Benchmark.ips(warmup: 2, time: 5) do |x|
x.report('math sqrt') { Math.sqrt(123.456) }
x.report('pow operator') { 123.456**0.5 }
end