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stackprof_sampling_mode

⚙️ Sampling Profiling with StackProf in Production​

StackProf leverages statistical sampling to profile production workloads with minimal overhead. By choosing between :cpu, :wall, or :object modes and tuning the interval, you can capture representative call stacks without crippling performance.

# Gemfile
# gem 'stackprof'

require 'stackprof'

StackProf.run(mode: :cpu, out: 'tmp/stackprof-cpu.dump', interval: 1000) do
  # The code path under real traffic or test harness
  MyApp.start
end

# Analyze results later
# shell> stackprof tmp/stackprof-cpu.dump --text
# shell> stackprof tmp/stackprof-cpu.dump --flamegraph > stackprof.html