mirror of
https://github.com/flutter/flutter.git
synced 2025-06-03 00:51:18 +00:00
83 lines
3.1 KiB
Dart
83 lines
3.1 KiB
Dart
// Copyright 2016 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
import 'dart:io';
|
|
|
|
import 'package:flutter_test/flutter_test.dart';
|
|
import 'package:flutter/material.dart';
|
|
import 'package:flutter/rendering.dart';
|
|
import 'package:flutter/scheduler.dart';
|
|
import 'package:stocks/main.dart' as stocks;
|
|
import 'package:stocks/stock_data.dart' as stock_data;
|
|
|
|
const Duration kBenchmarkTime = const Duration(seconds: 15);
|
|
|
|
class BenchmarkingBinding extends LiveTestWidgetsFlutterBinding {
|
|
BenchmarkingBinding(this.stopwatch);
|
|
|
|
final Stopwatch stopwatch;
|
|
|
|
@override
|
|
void handleBeginFrame(Duration rawTimeStamp) {
|
|
stopwatch.start();
|
|
super.handleBeginFrame(rawTimeStamp);
|
|
stopwatch.stop();
|
|
}
|
|
}
|
|
|
|
Future<Null> main() async {
|
|
assert(false); // don't run this in checked mode! Use --release.
|
|
stock_data.StockDataFetcher.actuallyFetchData = false;
|
|
|
|
final Stopwatch wallClockWatch = new Stopwatch();
|
|
final Stopwatch cpuWatch = new Stopwatch();
|
|
new BenchmarkingBinding(cpuWatch);
|
|
|
|
int totalOpenFrameElapsedMicroseconds = 0;
|
|
int totalOpenIterationCount = 0;
|
|
int totalCloseFrameElapsedMicroseconds = 0;
|
|
int totalCloseIterationCount = 0;
|
|
int totalSubsequentFramesElapsedMicroseconds = 0;
|
|
int totalSubsequentFramesIterationCount = 0;
|
|
|
|
await benchmarkWidgets((WidgetTester tester) async {
|
|
stocks.main();
|
|
await tester.pump(); // Start startup animation
|
|
await tester.pump(const Duration(seconds: 1)); // Complete startup animation
|
|
|
|
bool drawerIsOpen = false;
|
|
wallClockWatch.start();
|
|
while (wallClockWatch.elapsed < kBenchmarkTime) {
|
|
cpuWatch.reset();
|
|
if (drawerIsOpen) {
|
|
await tester.tapAt(const Point(780.0, 250.0)); // Close drawer
|
|
await tester.pump();
|
|
totalCloseIterationCount += 1;
|
|
totalCloseFrameElapsedMicroseconds += cpuWatch.elapsedMicroseconds;
|
|
} else {
|
|
await tester.tapAt(const Point(20.0, 50.0)); // Open drawer
|
|
await tester.pump();
|
|
totalOpenIterationCount += 1;
|
|
totalOpenFrameElapsedMicroseconds += cpuWatch.elapsedMicroseconds;
|
|
}
|
|
drawerIsOpen = !drawerIsOpen;
|
|
|
|
// Time how long each frame takes
|
|
cpuWatch.reset();
|
|
while (SchedulerBinding.instance.hasScheduledFrame) {
|
|
await tester.pump();
|
|
totalSubsequentFramesIterationCount += 1;
|
|
}
|
|
totalSubsequentFramesElapsedMicroseconds += cpuWatch.elapsedMicroseconds;
|
|
}
|
|
});
|
|
|
|
print('Stock animation (ran for ${(wallClockWatch.elapsedMicroseconds / (1000 * 1000)).toStringAsFixed(1)}s):');
|
|
print(' Opening first frame average time: ${(totalOpenFrameElapsedMicroseconds / (totalOpenIterationCount)).toStringAsFixed(1)}µs per frame ($totalOpenIterationCount frames)');
|
|
print(' Closing first frame average time: ${(totalCloseFrameElapsedMicroseconds / (totalCloseIterationCount)).toStringAsFixed(1)}µs per frame ($totalCloseIterationCount frames)');
|
|
print(' Subsequent frames average time: ${(totalSubsequentFramesElapsedMicroseconds / (totalSubsequentFramesIterationCount)).toStringAsFixed(1)}µs per frame ($totalSubsequentFramesIterationCount frames)');
|
|
|
|
exit(0);
|
|
}
|