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mqtt-backend/node_modules/retimer/bench.js

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+'use strict'
+
+/* eslint-disable no-var */
+
+const bench = require('fastbench')
+const retimer = require('./')
+const max = 10000
+
+function benchSetTimeout (done) {
+  const timers = new Array(max)
+  let completed = 0
+  let toReschedule = 20
+
+  schedule()
+
+  function complete () {
+    if (++completed === max) {
+      done()
+    }
+  }
+
+  function schedule () {
+    for (var i = 0; i < max; i++) {
+      if (timers[i]) {
+        clearTimeout(timers[i])
+      }
+      timers[i] = setTimeout(complete, 50)
+    }
+    if (--toReschedule > 0) {
+      setTimeout(schedule, 10)
+    }
+  }
+}
+
+function benchRetimer (done) {
+  const timers = new Array(max)
+  let completed = 0
+  let toReschedule = 20
+
+  schedule()
+
+  function complete () {
+    if (++completed === max) {
+      done()
+    }
+  }
+
+  function schedule () {
+    for (var i = 0; i < max; i++) {
+      if (timers[i]) {
+        timers[i].reschedule(50)
+      } else {
+        timers[i] = retimer(complete, 50)
+      }
+    }
+    if (--toReschedule > 0) {
+      setTimeout(schedule, 10)
+    }
+  }
+}
+
+const run = bench([
+  benchSetTimeout,
+  benchRetimer
+], 100)
+
+run(run)