107 lines
3.1 KiB
Dart
107 lines
3.1 KiB
Dart
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// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'package:path/path.dart' as p;
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/// Some hopefully real-world representative platform-independent paths.
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const genericPaths = [
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'.',
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'..',
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'out/ReleaseIA32/packages',
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'lib',
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'lib/src/',
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'lib/src/style/url.dart',
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'test/./not/.././normalized',
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'benchmark/really/long/path/with/many/components.dart',
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];
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/// Some platform-specific paths.
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final platformPaths = {
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p.Style.posix: [
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'/',
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'/home/user/dart/sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart',
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],
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p.Style.url: [
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'https://example.server.org/443643002/path?top=yes#fragment',
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],
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p.Style.windows: [
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r'C:\User\me\',
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r'\\server\share\my\folders\some\file.data',
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],
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};
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/// The command line arguments passed to this script.
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late final List<String> arguments;
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void main(List<String> args) {
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arguments = args;
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for (var style in [p.Style.posix, p.Style.url, p.Style.windows]) {
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final context = p.Context(style: style);
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final files = <String>[...genericPaths, ...platformPaths[style]!];
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void benchmark(String name, void Function(String) function) {
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runBenchmark('${style.name}-$name', 100000, () {
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for (var file in files) {
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function(file);
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}
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});
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}
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void benchmarkPairs(String name, void Function(String, String) function) {
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runBenchmark('${style.name}-$name', 1000, () {
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for (var file1 in files) {
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for (var file2 in files) {
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function(file1, file2);
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}
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}
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});
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}
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benchmark('absolute', context.absolute);
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benchmark('basename', context.basename);
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benchmark('basenameWithoutExtension', context.basenameWithoutExtension);
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benchmark('dirname', context.dirname);
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benchmark('extension', context.extension);
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benchmark('rootPrefix', context.rootPrefix);
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benchmark('isAbsolute', context.isAbsolute);
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benchmark('isRelative', context.isRelative);
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benchmark('isRootRelative', context.isRootRelative);
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benchmark('normalize', context.normalize);
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benchmark('relative', context.relative);
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benchmarkPairs('relative from', (String file, String from) {
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try {
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context.relative(file, from: from);
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} on p.PathException {
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// Do nothing.
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}
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});
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benchmark('toUri', context.toUri);
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benchmark('prettyUri', context.prettyUri);
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benchmarkPairs('isWithin', context.isWithin);
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}
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runBenchmark('current', 100000, () => p.current);
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}
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void runBenchmark(String name, int count, void Function() function) {
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// If names are passed on the command-line, they select which benchmarks are
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// run.
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if (arguments.isNotEmpty && !arguments.contains(name)) return;
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// Warmup.
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for (var i = 0; i < 10000; i++) {
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function();
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}
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final stopwatch = Stopwatch()..start();
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for (var i = 0; i < count; i++) {
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function();
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}
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final rate =
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(count / stopwatch.elapsedMicroseconds).toStringAsFixed(5).padLeft(9);
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print('${name.padLeft(32)}: $rate iter/us (${stopwatch.elapsed})');
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}
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