flutter/dev/benchmarks/microbenchmarks/lib/foundation/platform_asset_bundle.dart
Michael Goderbauer 5491c8c146
Auto-format Framework (#160545)
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---------

Co-authored-by: Kate Lovett <katelovett@google.com>
Co-authored-by: LongCatIsLooong <31859944+LongCatIsLooong@users.noreply.github.com>
2024-12-19 20:06:21 +00:00

50 lines
1.6 KiB
Dart

// Copyright 2014 The Flutter 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 'package:flutter/services.dart' show PlatformAssetBundle;
import 'package:flutter/widgets.dart';
import '../common.dart';
const int _kBatchSize = 100;
const int _kNumIterations = 100;
Future<void> execute() async {
assert(false, "Don't run benchmarks in debug mode! Use 'flutter run --release'.");
final BenchmarkResultPrinter printer = BenchmarkResultPrinter();
WidgetsFlutterBinding.ensureInitialized();
final Stopwatch watch = Stopwatch();
final PlatformAssetBundle bundle = PlatformAssetBundle();
final List<double> values = <double>[];
for (int j = 0; j < _kNumIterations; ++j) {
double tally = 0;
watch.reset();
watch.start();
for (int i = 0; i < _kBatchSize; i += 1) {
// We don't load images like this. PlatformAssetBundle is used for
// other assets (like Rive animations). We are using an image because it's
// conveniently sized and available for the test.
tally +=
(await bundle.load(
'packages/flutter_gallery_assets/places/india_pondicherry_salt_farm.png',
)).lengthInBytes;
}
watch.stop();
values.add(watch.elapsedMicroseconds.toDouble() / _kBatchSize);
if (tally < 0.0) {
print("This shouldn't happen.");
}
}
printer.addResultStatistics(
description: 'PlatformAssetBundle.load 1MB',
values: values,
unit: 'us per iteration',
name: 'PlatformAssetBundle_load_1MB',
);
printer.printToStdout();
}