From 14e57c1102b7d68a25f82654a189901f6e0ed6db Mon Sep 17 00:00:00 2001
From: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Date: Fri, 20 Jan 2017 16:16:26 -0500
Subject: [PATCH] benchmark: add more thorough timers benchmarks

Refs: https://github.com/nodejs/node/issues/9493
PR-URL: https://github.com/nodejs/node/pull/10925
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
---
 benchmark/timers/timers-cancel-pooled.js   | 32 ++++++++++++++++++++++
 benchmark/timers/timers-cancel-unpooled.js | 26 ++++++++++++++++++
 benchmark/timers/timers-insert-pooled.js   | 18 ++++++++++++
 benchmark/timers/timers-insert-unpooled.js | 27 ++++++++++++++++++
 benchmark/timers/timers-timeout-pooled.js  | 23 ++++++++++++++++
 5 files changed, 126 insertions(+)
 create mode 100644 benchmark/timers/timers-cancel-pooled.js
 create mode 100644 benchmark/timers/timers-cancel-unpooled.js
 create mode 100644 benchmark/timers/timers-insert-pooled.js
 create mode 100644 benchmark/timers/timers-insert-unpooled.js
 create mode 100644 benchmark/timers/timers-timeout-pooled.js

diff --git a/benchmark/timers/timers-cancel-pooled.js b/benchmark/timers/timers-cancel-pooled.js
new file mode 100644
index 00000000000000..47c9fea2cb5b61
--- /dev/null
+++ b/benchmark/timers/timers-cancel-pooled.js
@@ -0,0 +1,32 @@
+'use strict';
+var common = require('../common.js');
+var assert = require('assert');
+
+var bench = common.createBenchmark(main, {
+  thousands: [500],
+});
+
+function main(conf) {
+  var iterations = +conf.thousands * 1e3;
+
+  var timer = setTimeout(() => {}, 1);
+  for (var i = 0; i < iterations; i++) {
+    setTimeout(cb, 1);
+  }
+  var next = timer._idlePrev;
+  clearTimeout(timer);
+
+  bench.start();
+
+  for (var j = 0; j < iterations; j++) {
+    timer = next;
+    next = timer._idlePrev;
+    clearTimeout(timer);
+  }
+
+  bench.end(iterations / 1e3);
+}
+
+function cb() {
+  assert(false, 'Timer should not call callback');
+}
diff --git a/benchmark/timers/timers-cancel-unpooled.js b/benchmark/timers/timers-cancel-unpooled.js
new file mode 100644
index 00000000000000..a040fad69e1c66
--- /dev/null
+++ b/benchmark/timers/timers-cancel-unpooled.js
@@ -0,0 +1,26 @@
+'use strict';
+var common = require('../common.js');
+var assert = require('assert');
+
+var bench = common.createBenchmark(main, {
+  thousands: [100],
+});
+
+function main(conf) {
+  var iterations = +conf.thousands * 1e3;
+
+  var timersList = [];
+  for (var i = 0; i < iterations; i++) {
+    timersList.push(setTimeout(cb, i + 1));
+  }
+
+  bench.start();
+  for (var j = 0; j < iterations + 1; j++) {
+    clearTimeout(timersList[j]);
+  }
+  bench.end(iterations / 1e3);
+}
+
+function cb() {
+  assert(false, 'Timer ' + this._idleTimeout + ' should not call callback');
+}
diff --git a/benchmark/timers/timers-insert-pooled.js b/benchmark/timers/timers-insert-pooled.js
new file mode 100644
index 00000000000000..11c35319b11d69
--- /dev/null
+++ b/benchmark/timers/timers-insert-pooled.js
@@ -0,0 +1,18 @@
+'use strict';
+var common = require('../common.js');
+
+var bench = common.createBenchmark(main, {
+  thousands: [500],
+});
+
+function main(conf) {
+  var iterations = +conf.thousands * 1e3;
+
+  bench.start();
+
+  for (var i = 0; i < iterations; i++) {
+    setTimeout(() => {}, 1);
+  }
+
+  bench.end(iterations / 1e3);
+}
diff --git a/benchmark/timers/timers-insert-unpooled.js b/benchmark/timers/timers-insert-unpooled.js
new file mode 100644
index 00000000000000..91eabeb04e9d4f
--- /dev/null
+++ b/benchmark/timers/timers-insert-unpooled.js
@@ -0,0 +1,27 @@
+'use strict';
+var common = require('../common.js');
+var assert = require('assert');
+
+var bench = common.createBenchmark(main, {
+  thousands: [100],
+});
+
+function main(conf) {
+  var iterations = +conf.thousands * 1e3;
+
+  var timersList = [];
+
+  bench.start();
+  for (var i = 0; i < iterations; i++) {
+    timersList.push(setTimeout(cb, i + 1));
+  }
+  bench.end(iterations / 1e3);
+
+  for (var j = 0; j < iterations + 1; j++) {
+    clearTimeout(timersList[j]);
+  }
+}
+
+function cb() {
+  assert(false, 'Timer ' + this._idleTimeout + ' should not call callback');
+}
diff --git a/benchmark/timers/timers-timeout-pooled.js b/benchmark/timers/timers-timeout-pooled.js
new file mode 100644
index 00000000000000..feaec23237f13d
--- /dev/null
+++ b/benchmark/timers/timers-timeout-pooled.js
@@ -0,0 +1,23 @@
+'use strict';
+var common = require('../common.js');
+
+var bench = common.createBenchmark(main, {
+  thousands: [500],
+});
+
+function main(conf) {
+  var iterations = +conf.thousands * 1e3;
+  var count = 0;
+
+  for (var i = 0; i < iterations; i++) {
+    setTimeout(cb, 1);
+  }
+
+  bench.start();
+
+  function cb() {
+    count++;
+    if (count === iterations)
+      bench.end(iterations / 1e3);
+  }
+}