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7aace1c5f9
**Three things** Re-lands #154374 New: fix `platform_channels_benchmarks` to print the "done" key. Updated notes for the microbenchmark parser. There are no other users of `microbenchmarks.readJsonResults`. Re-Re-land: Uninstall microbenchmarks before running them. Flakes in https://github.com/flutter/flutter/issues/153828 stem from adb saying the app isn't installed, but then failing to install wtih -r. Several other tests uninstall the app before trying to run it. Previous fix called uninstall between tests, but iOS takes 12 to 13 seconds to perform uninstall / install, which timed out the test. Just uninstall the one time since we only care about any lingering apps with different keys. Potential solution https://github.com/flutter/flutter/issues/153828 Re-land Make things go fast Instead of installing 21 different compilations of the same app to get results; compile and run them together. Locally on Mac+iOS, this should takes ~3 minutes instead of ~15 minutes.
52 lines
1.5 KiB
Dart
52 lines
1.5 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter_test/flutter_test.dart';
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import '../common.dart';
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import 'apps/button_matrix_app.dart' as button_matrix;
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const int _kNumWarmUpIters = 20;
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const int _kNumIters = 300;
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Future<void> execute() async {
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assert(false, "Don't run benchmarks in debug mode! Use 'flutter run --release'.");
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final Stopwatch watch = Stopwatch();
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print('GestureDetector semantics benchmark...');
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await benchmarkWidgets((WidgetTester tester) async {
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button_matrix.main();
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await tester.pump();
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await tester.pump(const Duration(seconds: 1));
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Future<void> iter() async {
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// Press a button to update the screen
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await tester.tapAt(const Offset(760.0, 30.0));
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await tester.pump();
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}
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// Warm up runs get the app into steady state, making benchmark
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// results more credible
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for (int i = 0; i < _kNumWarmUpIters; i += 1) {
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await iter();
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}
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await tester.pumpAndSettle();
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watch.start();
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for (int i = 0; i < _kNumIters; i += 1) {
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await iter();
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}
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watch.stop();
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}, semanticsEnabled: true);
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final BenchmarkResultPrinter printer = BenchmarkResultPrinter();
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printer.addResult(
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description: 'GestureDetector',
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value: watch.elapsedMicroseconds / _kNumIters,
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unit: 'µs per iteration',
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name: 'gesture_detector_bench',
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);
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printer.printToStdout();
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}
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