#hotpath.mbt

#Installation

moon add f4ah6o/hotpath@0.1.0

import {
  "f4ah6o/hotpath/src" @hotpath,
}

#Quick start

let profiler = @hotpath.Profiler::new()

let value = profiler.measure("parse", fn() {
  // work
  42
})

profiler.measure("render", fn() {
  // more work
  ()
}) |> ignore

println(profiler.render_text())

let tick = Ref::new(0L)
let now = fn() {
  let current = tick.val
  tick.val = current + 10L
  current
}

profiler.measure_with("fake", now, fn() { () }) |> ignore

#Opt-in nanosecond measurements

let profiler = @hotpath.ProfilerNs::new()
let value = profiler.measure_ns_with("input.handle", monotonic_now_ns, () => work())
println(profiler.render_text())

#Current scope

• explicit scoped timing via Profiler::measure
• injectable clock via Profiler::measure_with
• repeated-label aggregation
• nested measurements
• calls / total / min / max / integer average
• bounded p50 / p95 / p99 estimates
• deterministic profiler merge
• stable insertion-order snapshots and text reports
• deterministic reset/test hooks
• M0-vs-M1 native micro-benchmark in CI

#Development

moon check --target all
moon test --target all
moon bench --target native
moon fmt --check

#License