test: Add script which allows running all of the profiling tests and compare results

.gitignore

@@ -39,3 +39,5 @@ yarn-error.log
 # User specific bazel settings
 .bazelrc.user
 
+.notes.md
+baseline.json

packages/core/test/render3/perf/README.md

@@ -1,19 +1,67 @@
 ### Build
 
+```
 yarn bazel build //packages/core/test/render3/perf:{name}.min_debug.es2015.js --define=compile=aot
+```
 
 ### Run 
 
+```
 node dist/bin/packages/core/test/render3/perf/{name}.min_debug.es2015.js
+```
 
 ### Profile
 
+```
 node --no-turbo-inlining --inspect-brk dist/bin/packages/core/test/render3/perf/{name}.min_debug.es2015.js
+```
 
 then connect with a debugger (the `--inspect-brk` option will make sure that benchmark execution doesn't start until a debugger is connected and the code execution is manually resumed). 
 
 The actual benchmark code has calls that will start (`console.profile`) and stop (`console.profileEnd`) a profiling session.
 
+### Run All
+
+To run all of the benchmarks use the `profile_all.js` script:
+```
+node packages/core/test/render3/perf/profile_all.js
+```
+
+NOTE: This command will build all of the tests, so there is no need to do so manually.
+
+Optionally use the `--write` command to save the run result to a file for later comparison.
+
+
+```
+node packages/core/test/render3/perf/profile_all.js --write baseline.json
+```
+
+### Comparing Runs
+
+If you have saved the baseline (as described in the step above) you can use it to get change in performance like so:
+
+```
+node packages/core/test/render3/perf/profile_all.js --read baseline.json
+```
+
+The resulting output should look something like this:
+```
+┌────────────────────────────────────┬─────────┬──────┬───────────┬───────────┬───────┐
+│              (index)               │  time   │ unit │ base_time │ base_unit │   %   │
+├────────────────────────────────────┼─────────┼──────┼───────────┼───────────┼───────┤
+│       directive_instantiate        │ 276.652 │ 'ms' │  286.292  │   'ms'    │ -3.37 │
+│        element_text_create         │ 262.868 │ 'ms' │  260.031  │   'ms'    │ 1.09  │
+│           interpolation            │ 257.733 │ 'us' │  260.489  │   'us'    │ -1.06 │
+│             listeners              │  1.997  │ 'us' │   1.985   │   'us'    │  0.6  │
+│ map_based_style_and_class_bindings │  10.07  │ 'ms' │   9.786   │   'ms'    │  2.9  │
+│       noop_change_detection        │ 93.256  │ 'us' │  91.745   │   'us'    │ 1.65  │
+│          property_binding          │ 290.777 │ 'us' │  280.586  │   'us'    │ 3.63  │
+│      property_binding_update       │ 588.545 │ 'us' │  583.334  │   'us'    │ 0.89  │
+│      style_and_class_bindings      │  1.061  │ 'ms' │   1.047   │   'ms'    │ 1.34  │
+│           style_binding            │ 543.841 │ 'us' │  545.385  │   'us'    │ -0.28 │
+└────────────────────────────────────┴─────────┴──────┴───────────┴───────────┴───────┘
+```
+
 ### Notes
 
 In all the above commands {name} should be replaced with the actual benchmark (folder) name, ex.:

packages/core/test/render3/perf/directive_instantiate/index.ts

@@ -16,8 +16,8 @@ import {createAndRenderLView} from '../setup';
 class Tooltip {
   tooltip?: string;
   position?: string;
-  static ngFactoryDef = () => new Tooltip();
-  static ngDirectiveDef = ɵɵdefineDirective({
+  static ɵfac = () => new Tooltip();
+  static ɵdir = ɵɵdefineDirective({
     type: Tooltip,
     selectors: [['', 'tooltip', '']],
     inputs: {tooltip: 'tooltip', position: 'position'}
@@ -75,7 +75,7 @@ function testTemplate(rf: RenderFlags, ctx: any) {
 
 const viewTNode = createTNode(null !, null, TNodeType.View, -1, null, null) as TViewNode;
 const embeddedTView = createTView(
-    -1, testTemplate, 21, 10, [Tooltip.ngDirectiveDef], null, null, null,
+    -1, testTemplate, 21, 10, [Tooltip.ɵdir], null, null, null,
     [['position', 'top', 3, 'tooltip']]);
 
 // initialize global state

packages/core/test/render3/perf/micro_bench.ts

@@ -7,7 +7,7 @@
  */
 const performance = require('perf_hooks').performance;
 
-const MIN_SAMPLE_COUNT_NO_IMPROVEMENT = 10;
+const MIN_SAMPLE_COUNT_NO_IMPROVEMENT = 30;
 const MIN_SAMPLE_DURATION = 100;
 
 const UNITS = ['ms', 'us', 'ns', 'ps'];

packages/core/test/render3/perf/profile_all.js

@@ -0,0 +1,96 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+const shell = require('shelljs');
+const fs = require('fs');
+const path = require('path');
+
+const argv = process.argv;
+const baseDir = path.dirname(argv[1]);
+const readPath = argv[2] == '--read' ? argv[3] : null;
+const writePath = argv[2] == '--write' ? argv[3] : null;
+
+const UNITS = {
+  'ps': 1e-12,
+  'ns': 1e-9,
+  'us': 1e-6,
+  'ms': 1e-3,
+  's': 1,
+};
+
+// Contains the list of tests which should be built and profiled
+const profileTests =
+    shell.ls(baseDir).filter((filename) => fs.statSync(path.join(baseDir, filename)).isDirectory());
+
+// build tests
+shell.exec(
+    `yarn bazel build --define=compile=aot ` +
+    profileTests.map((name) => `//packages/core/test/render3/perf:${name}.min_debug.es2015.js`)
+        .join(' '));
+
+// profile tests
+// tslint:disable-next-line:no-console
+console.log('------------------------------------------------');
+// tslint:disable-next-line:no-console
+console.log('PROFILING');
+// tslint:disable-next-line:no-console
+console.log('------------------------------------------------');
+
+// This stores the results of the run
+const times = {};
+
+
+// If we have a readPath than read it into the `times`
+if (readPath) {
+  const json = JSON.parse(shell.cat(readPath));
+  Object.keys(json).forEach((name) => {
+    const run = json[name];
+    times[name] = {
+      name: run.name,
+      base_time: run.time,
+      base_unit: run.unit,
+    };
+  });
+}
+profileTests.forEach((name) => {
+  // tslint:disable-next-line:no-console
+  console.log('----------------', name, '----------------');
+  const log =
+      shell.exec(`node dist/bin/packages/core/test/render3/perf/${name}.min_debug.es2015.js`);
+  if (log.code != 0) throw new Error(log);
+  const matches = log.stdout.match(/: ([\d\.]+) (.s)/);
+  const runTime = times[name] || (times[name] = {name: name});
+  runTime.time = Number.parseFloat(matches[1]);
+  runTime.unit = matches[2];
+  if (runTime.base_unit) {
+    const time = runTime.time * UNITS[runTime.unit];
+    const base_time = runTime.base_time * UNITS[runTime.base_unit];
+    const change = (time - base_time) / base_time * 100;
+    runTime['%'] = Number.parseFloat(change.toFixed(2));
+  }
+});
+// tslint:disable-next-line:no-console
+console.log('================================================');
+
+// If we have the writePath than write the `times` to file
+if (writePath) {
+  const baseTimes = {};
+  profileTests.forEach((name) => {
+    const run = times[name];
+    baseTimes[name] = {
+      name: run.name,
+      time: run.time,
+      unit: run.unit,
+    };
+  });
+  fs.writeFileSync(writePath, JSON.stringify(baseTimes, undefined, 2));
+}
+
+// Pretty print the table with the run information
+// tslint:disable-next-line:no-console
+console.table(times, ['time', 'unit', 'base_time', 'base_unit', '%']);