mirror of
https://github.com/dart-lang/sdk
synced 2024-07-01 07:14:29 +00:00
[benchmarks/vm] Add benchmarks for #45908
The implementation of const map literals is based on linear lookups in an array containing key/value pairs instead of a hash table. Bug: https://github.com/dart-lang/sdk/issues/45908 Golem CL: https://chrome-internal-review.googlesource.com/c/golem/+/3852562 Change-Id: If0a980339ee1342c41f9388e0bd7b3615a4ef4e3 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/200188 Commit-Queue: Daco Harkes <dacoharkes@google.com> Reviewed-by: Jonas Termansen <sortie@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>
This commit is contained in:
Daco Harkes
commit-bot@chromium.org
parent
f00dc3d056
commit
b0bfee6627
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@ -816,7 +816,7 @@ class SyncCallBenchmark {
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// Runs warmup phase, runs benchmark and reports result.
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void report() {
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// Warmup for 200 ms.
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// Warmup for 100 ms.
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measureFor(const Duration(milliseconds: 100));
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// Run benchmark for 2 seconds.
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@ -818,7 +818,7 @@ class SyncCallBenchmark {
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// Runs warmup phase, runs benchmark and reports result.
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void report() {
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// Warmup for 200 ms.
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// Warmup for 100 ms.
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measureFor(const Duration(milliseconds: 100));
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// Run benchmark for 2 seconds.
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131
benchmarks/MapLookup/dart/MapLookup.dart
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131
benchmarks/MapLookup/dart/MapLookup.dart
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@ -0,0 +1,131 @@
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// Copyright (c) 2021, 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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// Benchmark for https://github.com/dart-lang/sdk/issues/45908.
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//
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// Measures the average time needed for a lookup in Maps.
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import 'dart:math';
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import 'maps.dart';
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abstract class MapLookupBenchmark {
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final String name;
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const MapLookupBenchmark(this.name);
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Map<String, String> get myMap;
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// Returns the number of nanoseconds per call.
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double measureFor(Duration duration) {
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final map = myMap;
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// Prevent `sw.elapsedMicroseconds` from dominating with maps with a
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// small number of elements.
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final int batching = max(1000 ~/ map.length, 1);
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int numberOfLookups = 0;
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int totalMicroseconds = 0;
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final sw = Stopwatch()..start();
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final durationInMicroseconds = duration.inMicroseconds;
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do {
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for (int i = 0; i < batching; i++) {
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String? k = '0';
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while (k != null) {
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k = map[k];
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}
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numberOfLookups += map.length;
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}
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totalMicroseconds = sw.elapsedMicroseconds;
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} while (totalMicroseconds < durationInMicroseconds);
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final int totalNanoseconds = sw.elapsed.inMicroseconds * 1000;
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return totalNanoseconds / numberOfLookups;
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}
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// Runs warmup phase, runs benchmark and reports result.
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void report() {
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// Warmup for 100 ms.
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measureFor(const Duration(milliseconds: 100));
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// Run benchmark for 2 seconds.
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final double nsPerCall = measureFor(const Duration(seconds: 2));
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// Report result.
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print('$name(RunTimeRaw): $nsPerCall ns.');
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}
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}
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class Constant1 extends MapLookupBenchmark {
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const Constant1() : super('MapLookup.Constant1');
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@override
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Map<String, String> get myMap => const1;
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}
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class Final1 extends MapLookupBenchmark {
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const Final1() : super('MapLookup.Final1');
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@override
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Map<String, String> get myMap => final1;
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}
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class Constant5 extends MapLookupBenchmark {
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const Constant5() : super('MapLookup.Constant5');
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@override
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Map<String, String> get myMap => const5;
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}
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class Final5 extends MapLookupBenchmark {
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const Final5() : super('MapLookup.Final5');
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@override
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Map<String, String> get myMap => final5;
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}
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class Constant10 extends MapLookupBenchmark {
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const Constant10() : super('MapLookup.Constant10');
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@override
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Map<String, String> get myMap => const10;
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}
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class Final10 extends MapLookupBenchmark {
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const Final10() : super('MapLookup.Final10');
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@override
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Map<String, String> get myMap => final10;
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}
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class Constant100 extends MapLookupBenchmark {
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const Constant100() : super('MapLookup.Constant100');
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@override
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Map<String, String> get myMap => const100;
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}
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class Final100 extends MapLookupBenchmark {
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const Final100() : super('MapLookup.Final100');
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@override
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Map<String, String> get myMap => final100;
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}
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void main() {
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final benchmarks = [
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() => const Constant1(),
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() => const Constant5(),
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() => const Constant10(),
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() => const Constant100(),
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() => const Final1(),
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() => const Final5(),
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() => const Final10(),
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() => const Final100(),
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];
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for (final benchmark in benchmarks) {
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benchmark().report();
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}
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}
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259
benchmarks/MapLookup/dart/maps.dart
Normal file
259
benchmarks/MapLookup/dart/maps.dart
Normal file
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@ -0,0 +1,259 @@
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// Copyright (c) 2021, 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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const const1 = <String, String>{
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'0': '1',
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};
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final final1 = <String, String>{
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'0': '1',
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};
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const const5 = <String, String>{
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'0': '1',
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'1': '2',
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'2': '3',
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'3': '4',
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'4': '5',
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};
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final final5 = <String, String>{
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'0': '1',
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'1': '2',
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'2': '3',
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'3': '4',
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'4': '5',
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};
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const const10 = <String, String>{
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'0': '1',
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'1': '2',
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'2': '3',
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'3': '4',
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'4': '5',
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'5': '6',
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'6': '7',
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'7': '8',
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'8': '9',
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'9': '10',
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};
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final final10 = <String, String>{
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'0': '1',
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'1': '2',
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'2': '3',
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'3': '4',
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'4': '5',
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'5': '6',
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'6': '7',
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'7': '8',
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'8': '9',
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'9': '10',
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};
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const const100 = <String, String>{
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'0': '1',
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'1': '2',
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'2': '3',
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'3': '4',
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'4': '5',
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'5': '6',
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'6': '7',
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'7': '8',
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'8': '9',
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'9': '10',
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'10': '11',
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'11': '12',
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'12': '13',
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'13': '14',
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'14': '15',
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'15': '16',
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'16': '17',
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'17': '18',
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'18': '19',
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'19': '20',
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'20': '21',
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'21': '22',
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'22': '23',
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'23': '24',
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'24': '25',
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'25': '26',
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'26': '27',
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'27': '28',
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'28': '29',
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'29': '30',
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'30': '31',
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'31': '32',
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'32': '33',
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'33': '34',
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'34': '35',
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'35': '36',
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'36': '37',
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'37': '38',
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'38': '39',
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'39': '40',
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'40': '41',
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'41': '42',
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'42': '43',
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'43': '44',
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'44': '45',
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'45': '46',
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'46': '47',
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'47': '48',
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'48': '49',
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'49': '50',
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'50': '51',
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'51': '52',
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'52': '53',
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'53': '54',
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'54': '55',
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'55': '56',
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'56': '57',
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'57': '58',
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'58': '59',
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'59': '60',
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'60': '61',
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'61': '62',
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'62': '63',
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'63': '64',
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'64': '65',
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'65': '66',
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'66': '67',
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'67': '68',
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'68': '69',
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'69': '70',
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'70': '71',
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'71': '72',
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'72': '73',
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'73': '74',
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'74': '75',
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'75': '76',
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'76': '77',
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'77': '78',
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'78': '79',
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'79': '80',
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'80': '81',
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'81': '82',
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'82': '83',
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'83': '84',
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'84': '85',
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'85': '86',
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'86': '87',
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'87': '88',
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'88': '89',
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'89': '90',
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'90': '91',
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'91': '92',
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'92': '93',
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'93': '94',
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'94': '95',
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'95': '96',
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'96': '97',
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'97': '98',
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'98': '99',
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'99': '100',
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};
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final final100 = <String, String>{
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'0': '1',
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'1': '2',
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'2': '3',
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'3': '4',
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'4': '5',
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'5': '6',
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'6': '7',
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'7': '8',
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'8': '9',
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'9': '10',
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'10': '11',
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'11': '12',
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'12': '13',
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'13': '14',
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'14': '15',
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'15': '16',
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'16': '17',
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'17': '18',
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'18': '19',
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'19': '20',
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'20': '21',
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'21': '22',
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'22': '23',
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'23': '24',
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'24': '25',
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'25': '26',
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'26': '27',
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'27': '28',
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'28': '29',
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'29': '30',
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'30': '31',
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'31': '32',
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'32': '33',
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'33': '34',
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'34': '35',
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'35': '36',
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'36': '37',
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'37': '38',
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'38': '39',
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'39': '40',
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'40': '41',
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'41': '42',
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'42': '43',
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'43': '44',
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'44': '45',
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'45': '46',
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'46': '47',
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'47': '48',
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'48': '49',
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'49': '50',
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'50': '51',
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'51': '52',
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'52': '53',
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'53': '54',
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'54': '55',
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'55': '56',
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'56': '57',
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'57': '58',
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'58': '59',
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'59': '60',
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'60': '61',
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'61': '62',
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'62': '63',
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'63': '64',
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'64': '65',
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'65': '66',
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'66': '67',
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'67': '68',
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'68': '69',
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'69': '70',
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'70': '71',
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'71': '72',
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'72': '73',
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'73': '74',
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'74': '75',
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'75': '76',
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'76': '77',
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'77': '78',
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'78': '79',
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'79': '80',
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'80': '81',
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'81': '82',
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'82': '83',
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'83': '84',
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'84': '85',
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'85': '86',
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'86': '87',
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'87': '88',
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'88': '89',
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'89': '90',
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'90': '91',
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'91': '92',
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'92': '93',
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'93': '94',
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'94': '95',
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'95': '96',
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'96': '97',
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'97': '98',
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'98': '99',
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'99': '100',
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};
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131
benchmarks/MapLookup/dart2/MapLookup.dart
Normal file
131
benchmarks/MapLookup/dart2/MapLookup.dart
Normal file
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@ -0,0 +1,131 @@
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// Copyright (c) 2021, 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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// Benchmark for https://github.com/dart-lang/sdk/issues/45908.
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//
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// Measures the average time needed for a lookup in Maps.
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import 'dart:math';
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import 'maps.dart';
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abstract class MapLookupBenchmark {
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final String name;
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const MapLookupBenchmark(this.name);
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Map<String, String> get myMap;
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// Returns the number of nanoseconds per call.
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double measureFor(Duration duration) {
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final map = myMap;
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|
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// Prevent `sw.elapsedMicroseconds` from dominating with maps with a
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// small number of elements.
|
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final int batching = max(1000 ~/ map.length, 1);
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|
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int numberOfLookups = 0;
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int totalMicroseconds = 0;
|
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final sw = Stopwatch()..start();
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final durationInMicroseconds = duration.inMicroseconds;
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do {
|
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for (int i = 0; i < batching; i++) {
|
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String? k = '0';
|
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while (k != null) {
|
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k = map[k];
|
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}
|
||||
numberOfLookups += map.length;
|
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}
|
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totalMicroseconds = sw.elapsedMicroseconds;
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} while (totalMicroseconds < durationInMicroseconds);
|
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|
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final int totalNanoseconds = sw.elapsed.inMicroseconds * 1000;
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return totalNanoseconds / numberOfLookups;
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}
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// Runs warmup phase, runs benchmark and reports result.
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void report() {
|
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// Warmup for 100 ms.
|
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measureFor(const Duration(milliseconds: 100));
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|
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// Run benchmark for 2 seconds.
|
||||
final double nsPerCall = measureFor(const Duration(seconds: 2));
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||||
|
||||
// Report result.
|
||||
print('$name(RunTimeRaw): $nsPerCall ns.');
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||||
}
|
||||
}
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||||
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||||
class Constant1 extends MapLookupBenchmark {
|
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const Constant1() : super('MapLookup.Constant1');
|
||||
|
||||
@override
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Map<String, String> get myMap => const1;
|
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}
|
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|
||||
class Final1 extends MapLookupBenchmark {
|
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const Final1() : super('MapLookup.Final1');
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|
||||
@override
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Map<String, String> get myMap => final1;
|
||||
}
|
||||
|
||||
class Constant5 extends MapLookupBenchmark {
|
||||
const Constant5() : super('MapLookup.Constant5');
|
||||
|
||||
@override
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||||
Map<String, String> get myMap => const5;
|
||||
}
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||||
|
||||
class Final5 extends MapLookupBenchmark {
|
||||
const Final5() : super('MapLookup.Final5');
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|
||||
@override
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||||
Map<String, String> get myMap => final5;
|
||||
}
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||||
|
||||
class Constant10 extends MapLookupBenchmark {
|
||||
const Constant10() : super('MapLookup.Constant10');
|
||||
|
||||
@override
|
||||
Map<String, String> get myMap => const10;
|
||||
}
|
||||
|
||||
class Final10 extends MapLookupBenchmark {
|
||||
const Final10() : super('MapLookup.Final10');
|
||||
|
||||
@override
|
||||
Map<String, String> get myMap => final10;
|
||||
}
|
||||
|
||||
class Constant100 extends MapLookupBenchmark {
|
||||
const Constant100() : super('MapLookup.Constant100');
|
||||
|
||||
@override
|
||||
Map<String, String> get myMap => const100;
|
||||
}
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||||
|
||||
class Final100 extends MapLookupBenchmark {
|
||||
const Final100() : super('MapLookup.Final100');
|
||||
|
||||
@override
|
||||
Map<String, String> get myMap => final100;
|
||||
}
|
||||
|
||||
void main() {
|
||||
final benchmarks = [
|
||||
() => const Constant1(),
|
||||
() => const Constant5(),
|
||||
() => const Constant10(),
|
||||
() => const Constant100(),
|
||||
() => const Final1(),
|
||||
() => const Final5(),
|
||||
() => const Final10(),
|
||||
() => const Final100(),
|
||||
];
|
||||
for (final benchmark in benchmarks) {
|
||||
benchmark().report();
|
||||
}
|
||||
}
|
||||
259
benchmarks/MapLookup/dart2/maps.dart
Normal file
259
benchmarks/MapLookup/dart2/maps.dart
Normal file
|
|
@ -0,0 +1,259 @@
|
|||
// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
|
||||
// for details. All rights reserved. Use of this source code is governed by a
|
||||
// BSD-style license that can be found in the LICENSE file.
|
||||
|
||||
const const1 = <String, String>{
|
||||
'0': '1',
|
||||
};
|
||||
|
||||
final final1 = <String, String>{
|
||||
'0': '1',
|
||||
};
|
||||
|
||||
const const5 = <String, String>{
|
||||
'0': '1',
|
||||
'1': '2',
|
||||
'2': '3',
|
||||
'3': '4',
|
||||
'4': '5',
|
||||
};
|
||||
|
||||
final final5 = <String, String>{
|
||||
'0': '1',
|
||||
'1': '2',
|
||||
'2': '3',
|
||||
'3': '4',
|
||||
'4': '5',
|
||||
};
|
||||
|
||||
const const10 = <String, String>{
|
||||
'0': '1',
|
||||
'1': '2',
|
||||
'2': '3',
|
||||
'3': '4',
|
||||
'4': '5',
|
||||
'5': '6',
|
||||
'6': '7',
|
||||
'7': '8',
|
||||
'8': '9',
|
||||
'9': '10',
|
||||
};
|
||||
|
||||
final final10 = <String, String>{
|
||||
'0': '1',
|
||||
'1': '2',
|
||||
'2': '3',
|
||||
'3': '4',
|
||||
'4': '5',
|
||||
'5': '6',
|
||||
'6': '7',
|
||||
'7': '8',
|
||||
'8': '9',
|
||||
'9': '10',
|
||||
};
|
||||
|
||||
const const100 = <String, String>{
|
||||
'0': '1',
|
||||
'1': '2',
|
||||
'2': '3',
|
||||
'3': '4',
|
||||
'4': '5',
|
||||
'5': '6',
|
||||
'6': '7',
|
||||
'7': '8',
|
||||
'8': '9',
|
||||
'9': '10',
|
||||
'10': '11',
|
||||
'11': '12',
|
||||
'12': '13',
|
||||
'13': '14',
|
||||
'14': '15',
|
||||
'15': '16',
|
||||
'16': '17',
|
||||
'17': '18',
|
||||
'18': '19',
|
||||
'19': '20',
|
||||
'20': '21',
|
||||
'21': '22',
|
||||
'22': '23',
|
||||
'23': '24',
|
||||
'24': '25',
|
||||
'25': '26',
|
||||
'26': '27',
|
||||
'27': '28',
|
||||
'28': '29',
|
||||
'29': '30',
|
||||
'30': '31',
|
||||
'31': '32',
|
||||
'32': '33',
|
||||
'33': '34',
|
||||
'34': '35',
|
||||
'35': '36',
|
||||
'36': '37',
|
||||
'37': '38',
|
||||
'38': '39',
|
||||
'39': '40',
|
||||
'40': '41',
|
||||
'41': '42',
|
||||
'42': '43',
|
||||
'43': '44',
|
||||
'44': '45',
|
||||
'45': '46',
|
||||
'46': '47',
|
||||
'47': '48',
|
||||
'48': '49',
|
||||
'49': '50',
|
||||
'50': '51',
|
||||
'51': '52',
|
||||
'52': '53',
|
||||
'53': '54',
|
||||
'54': '55',
|
||||
'55': '56',
|
||||
'56': '57',
|
||||
'57': '58',
|
||||
'58': '59',
|
||||
'59': '60',
|
||||
'60': '61',
|
||||
'61': '62',
|
||||
'62': '63',
|
||||
'63': '64',
|
||||
'64': '65',
|
||||
'65': '66',
|
||||
'66': '67',
|
||||
'67': '68',
|
||||
'68': '69',
|
||||
'69': '70',
|
||||
'70': '71',
|
||||
'71': '72',
|
||||
'72': '73',
|
||||
'73': '74',
|
||||
'74': '75',
|
||||
'75': '76',
|
||||
'76': '77',
|
||||
'77': '78',
|
||||
'78': '79',
|
||||
'79': '80',
|
||||
'80': '81',
|
||||
'81': '82',
|
||||
'82': '83',
|
||||
'83': '84',
|
||||
'84': '85',
|
||||
'85': '86',
|
||||
'86': '87',
|
||||
'87': '88',
|
||||
'88': '89',
|
||||
'89': '90',
|
||||
'90': '91',
|
||||
'91': '92',
|
||||
'92': '93',
|
||||
'93': '94',
|
||||
'94': '95',
|
||||
'95': '96',
|
||||
'96': '97',
|
||||
'97': '98',
|
||||
'98': '99',
|
||||
'99': '100',
|
||||
};
|
||||
|
||||
final final100 = <String, String>{
|
||||
'0': '1',
|
||||
'1': '2',
|
||||
'2': '3',
|
||||
'3': '4',
|
||||
'4': '5',
|
||||
'5': '6',
|
||||
'6': '7',
|
||||
'7': '8',
|
||||
'8': '9',
|
||||
'9': '10',
|
||||
'10': '11',
|
||||
'11': '12',
|
||||
'12': '13',
|
||||
'13': '14',
|
||||
'14': '15',
|
||||
'15': '16',
|
||||
'16': '17',
|
||||
'17': '18',
|
||||
'18': '19',
|
||||
'19': '20',
|
||||
'20': '21',
|
||||
'21': '22',
|
||||
'22': '23',
|
||||
'23': '24',
|
||||
'24': '25',
|
||||
'25': '26',
|
||||
'26': '27',
|
||||
'27': '28',
|
||||
'28': '29',
|
||||
'29': '30',
|
||||
'30': '31',
|
||||
'31': '32',
|
||||
'32': '33',
|
||||
'33': '34',
|
||||
'34': '35',
|
||||
'35': '36',
|
||||
'36': '37',
|
||||
'37': '38',
|
||||
'38': '39',
|
||||
'39': '40',
|
||||
'40': '41',
|
||||
'41': '42',
|
||||
'42': '43',
|
||||
'43': '44',
|
||||
'44': '45',
|
||||
'45': '46',
|
||||
'46': '47',
|
||||
'47': '48',
|
||||
'48': '49',
|
||||
'49': '50',
|
||||
'50': '51',
|
||||
'51': '52',
|
||||
'52': '53',
|
||||
'53': '54',
|
||||
'54': '55',
|
||||
'55': '56',
|
||||
'56': '57',
|
||||
'57': '58',
|
||||
'58': '59',
|
||||
'59': '60',
|
||||
'60': '61',
|
||||
'61': '62',
|
||||
'62': '63',
|
||||
'63': '64',
|
||||
'64': '65',
|
||||
'65': '66',
|
||||
'66': '67',
|
||||
'67': '68',
|
||||
'68': '69',
|
||||
'69': '70',
|
||||
'70': '71',
|
||||
'71': '72',
|
||||
'72': '73',
|
||||
'73': '74',
|
||||
'74': '75',
|
||||
'75': '76',
|
||||
'76': '77',
|
||||
'77': '78',
|
||||
'78': '79',
|
||||
'79': '80',
|
||||
'80': '81',
|
||||
'81': '82',
|
||||
'82': '83',
|
||||
'83': '84',
|
||||
'84': '85',
|
||||
'85': '86',
|
||||
'86': '87',
|
||||
'87': '88',
|
||||
'88': '89',
|
||||
'89': '90',
|
||||
'90': '91',
|
||||
'91': '92',
|
||||
'92': '93',
|
||||
'93': '94',
|
||||
'94': '95',
|
||||
'95': '96',
|
||||
'96': '97',
|
||||
'97': '98',
|
||||
'98': '99',
|
||||
'99': '100',
|
||||
};
|
||||
42
benchmarks/MapLookup/generate_maps.dart
Normal file
42
benchmarks/MapLookup/generate_maps.dart
Normal file
|
|
@ -0,0 +1,42 @@
|
|||
// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
|
||||
// for details. 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';
|
||||
|
||||
void main() {
|
||||
final buffer = StringBuffer();
|
||||
buffer.write('''
|
||||
// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
|
||||
// for details. All rights reserved. Use of this source code is governed by a
|
||||
// BSD-style license that can be found in the LICENSE file.
|
||||
|
||||
''');
|
||||
|
||||
generateMap(buffer, 'const1', 1, isConst: true);
|
||||
generateMap(buffer, 'final1', 1, isConst: false);
|
||||
generateMap(buffer, 'const5', 5, isConst: true);
|
||||
generateMap(buffer, 'final5', 5, isConst: false);
|
||||
generateMap(buffer, 'const10', 10, isConst: true);
|
||||
generateMap(buffer, 'final10', 10, isConst: false);
|
||||
generateMap(buffer, 'const100', 100, isConst: true);
|
||||
generateMap(buffer, 'final100', 100, isConst: false);
|
||||
|
||||
for (final folder in ['dart', 'dart2']) {
|
||||
final path = Platform.script.resolve('$folder/maps.dart').toFilePath();
|
||||
File(path).writeAsStringSync(buffer.toString());
|
||||
Process.runSync(Platform.executable, ['format', path]);
|
||||
print('Generated $path.');
|
||||
}
|
||||
}
|
||||
|
||||
void generateMap(StringBuffer buffer, String name, int mapSize,
|
||||
{bool isConst = true}) {
|
||||
final constOrFinal = isConst ? 'const' : 'final';
|
||||
buffer.write('$constOrFinal $name = <String, String>{');
|
||||
for (int i = 0; i < mapSize; i++) {
|
||||
buffer.write("'$i': '${i + 1}',");
|
||||
}
|
||||
buffer.write('};');
|
||||
buffer.write('\n\n');
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user