mirror of
https://github.com/dart-lang/sdk
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[benchmarks] Add micro-benchmark for async/await with live variables
Issue: https://github.com/dart-lang/sdk/issues/48594 Issue: https://github.com/dart-lang/sdk/issues/48378 Change-Id: Ib5bd65c149342bb5d9bb2b5176a4a3b968a08a81 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/238980 Reviewed-by: Martin Kustermann <kustermann@google.com> Commit-Queue: Alexander Markov <alexmarkov@google.com>
This commit is contained in:
Alexander Markov
Commit Bot
parent
5234076fbe
commit
b55dc762fa
305
benchmarks/AsyncLiveVars/dart/AsyncLiveVars.dart
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305
benchmarks/AsyncLiveVars/dart/AsyncLiveVars.dart
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@ -0,0 +1,305 @@
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// Copyright (c) 2022, 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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// Micro-benchmark for testing async/await performance in presence of
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// different number of live values across await.
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import 'dart:async';
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import 'async_benchmark_base.dart' show AsyncBenchmarkBase;
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class MockClass {
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static final String str = "${int.parse('42')}";
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static final List<int> list =
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List<int>.filled(int.parse('3'), int.parse('42'));
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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String get1() => str;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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List<int> get2() => list;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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void use1(String a0) => a0.length;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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void use2(String a0, List<int> a1) => a0.length + a1.length;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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void use4(String a0, List<int> a1, String a2, List<int> a3) =>
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a0.length + a1.length + a2.length + a3.length;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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void use8(String a0, List<int> a1, String a2, List<int> a3, String a4,
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List<int> a5, String a6, List<int> a7) =>
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a0.length +
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a1.length +
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a2.length +
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a3.length +
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a4.length +
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a5.length +
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a6.length +
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a7.length;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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Future<void> asyncMethod() async {}
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}
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class MockClass2 {
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static int val1 = int.parse('42');
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static int val2 = int.parse('43');
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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int get1() => val1;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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int get2() => val2;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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void use1(int a0) => a0;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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void use2(int a0, int a1) => a0 + a1;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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void use4(int a0, int a1, int a2, int a3) => a0 + a1 + a2 + a3;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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Future<void> asyncMethod() async {}
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}
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class LiveVarsBench extends AsyncBenchmarkBase {
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LiveVarsBench(String name) : super(name);
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@override
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Future<void> exercise() async {
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// These micro-benchmarks are too small, so
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// make a larger number of iterations per measurement.
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for (var i = 0; i < 10000; i++) {
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await run();
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}
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}
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}
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class LiveObj1 extends LiveVarsBench {
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LiveObj1() : super('AsyncLiveVars.LiveObj1');
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final field1 = MockClass();
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@override
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Future<void> run() async {
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final obj1 = field1.get1();
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await field1.asyncMethod();
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field1.use1(obj1);
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await field1.asyncMethod();
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field1.use1(obj1);
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await field1.asyncMethod();
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field1.use1(obj1);
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}
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}
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class LiveObj2 extends LiveVarsBench {
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LiveObj2() : super('AsyncLiveVars.LiveObj2');
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final field1 = MockClass();
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@override
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Future<void> run() async {
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final obj1 = field1.get1();
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final obj2 = field1.get2();
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await field1.asyncMethod();
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field1.use1(obj1);
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await field1.asyncMethod();
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field1.use1(obj1);
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await field1.asyncMethod();
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field1.use2(obj1, obj2);
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}
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}
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class LiveObj4 extends LiveVarsBench {
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LiveObj4() : super('AsyncLiveVars.LiveObj4');
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final field1 = MockClass();
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final field2 = MockClass();
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@override
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Future<void> run() async {
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final obj1 = field1.get1();
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final obj2 = field1.get2();
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final obj3 = field2.get1();
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final obj4 = field2.get2();
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await field1.asyncMethod();
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field1.use1(obj1);
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await field1.asyncMethod();
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field2.use1(obj3);
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await field2.asyncMethod();
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field1.use4(obj1, obj2, obj3, obj4);
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}
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}
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class LiveObj8 extends LiveVarsBench {
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LiveObj8() : super('AsyncLiveVars.LiveObj8');
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final field1 = MockClass();
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final field2 = MockClass();
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final field3 = MockClass();
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final field4 = MockClass();
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@override
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Future<void> run() async {
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final obj1 = field1.get1();
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final obj2 = field1.get2();
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final obj3 = field2.get1();
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final obj4 = field2.get2();
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final obj5 = field3.get1();
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final obj6 = field3.get2();
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final obj7 = field4.get1();
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final obj8 = field4.get2();
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await field1.asyncMethod();
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field1.use1(obj1);
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await field2.asyncMethod();
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field3.use2(obj5, obj6);
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await field4.asyncMethod();
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field2.use8(obj1, obj2, obj3, obj4, obj5, obj6, obj7, obj8);
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}
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}
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class LiveObj16 extends LiveVarsBench {
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LiveObj16() : super('AsyncLiveVars.LiveObj16');
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final field1 = MockClass();
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final field2 = MockClass();
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final field3 = MockClass();
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final field4 = MockClass();
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final field5 = MockClass();
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final field6 = MockClass();
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final field7 = MockClass();
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final field8 = MockClass();
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@override
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Future<void> run() async {
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final obj1 = field1.get1();
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final obj2 = field1.get2();
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final obj3 = field2.get1();
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final obj4 = field2.get2();
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final obj5 = field3.get1();
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final obj6 = field3.get2();
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final obj7 = field4.get1();
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final obj8 = field4.get2();
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final obj9 = field5.get1();
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final obj10 = field5.get2();
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final obj11 = field6.get1();
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final obj12 = field6.get2();
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final obj13 = field7.get1();
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final obj14 = field7.get2();
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final obj15 = field8.get1();
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final obj16 = field8.get2();
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await field1.asyncMethod();
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field1.use1(obj1);
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await field2.asyncMethod();
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field5.use2(obj11, obj12);
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await field4.asyncMethod();
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field2.use8(obj1, obj2, obj3, obj4, obj5, obj6, obj7, obj8);
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field3.use8(obj9, obj10, obj11, obj12, obj13, obj14, obj15, obj16);
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}
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}
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class LiveInt1 extends LiveVarsBench {
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LiveInt1() : super('AsyncLiveVars.LiveInt1');
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final field1 = MockClass2();
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@override
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Future<void> run() async {
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final int1 = field1.get1();
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await field1.asyncMethod();
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field1.use1(int1);
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await field1.asyncMethod();
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field1.use1(int1);
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await field1.asyncMethod();
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field1.use1(int1);
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}
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}
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class LiveInt4 extends LiveVarsBench {
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LiveInt4() : super('AsyncLiveVars.LiveInt4');
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final field1 = MockClass2();
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final field2 = MockClass2();
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@override
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Future<void> run() async {
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final int1 = field1.get1();
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final int2 = field1.get2();
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final int3 = field2.get1();
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final int4 = field2.get2();
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await field1.asyncMethod();
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field1.use1(int1);
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await field1.asyncMethod();
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field2.use1(int3);
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await field2.asyncMethod();
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field1.use4(int1, int2, int3, int4);
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}
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}
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class LiveObj2Int2 extends LiveVarsBench {
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LiveObj2Int2() : super('AsyncLiveVars.LiveObj2Int2');
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final field1 = MockClass();
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final field2 = MockClass2();
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@override
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Future<void> run() async {
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final obj1 = field1.get1();
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final obj2 = field1.get2();
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final int1 = field2.get1();
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final int2 = field2.get2();
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await field1.asyncMethod();
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field1.use1(obj1);
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await field1.asyncMethod();
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field2.use1(int1);
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await field2.asyncMethod();
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field1.use2(obj1, obj2);
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field2.use2(int1, int2);
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}
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}
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class LiveObj4Int4 extends LiveVarsBench {
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LiveObj4Int4() : super('AsyncLiveVars.LiveObj4Int4');
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final field1 = MockClass();
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final field2 = MockClass();
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final field3 = MockClass2();
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final field4 = MockClass2();
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@override
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Future<void> run() async {
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final obj1 = field1.get1();
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final obj2 = field1.get2();
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final obj3 = field2.get1();
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final obj4 = field2.get2();
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final int1 = field3.get1();
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final int2 = field3.get2();
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final int3 = field4.get1();
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final int4 = field4.get2();
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await field1.asyncMethod();
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field1.use1(obj1);
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await field2.asyncMethod();
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field3.use2(int2, int4);
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await field4.asyncMethod();
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field2.use4(obj1, obj2, obj3, obj4);
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field4.use4(int1, int2, int3, int4);
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}
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}
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Future<void> main() async {
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final benchmarks = [
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LiveObj1(),
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LiveObj2(),
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LiveObj4(),
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LiveObj8(),
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LiveObj16(),
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LiveInt1(),
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LiveInt4(),
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LiveObj2Int2(),
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LiveObj4Int4()
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];
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for (final bench in benchmarks) {
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await bench.report();
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}
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}
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68
benchmarks/AsyncLiveVars/dart/async_benchmark_base.dart
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68
benchmarks/AsyncLiveVars/dart/async_benchmark_base.dart
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@ -0,0 +1,68 @@
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// Copyright (c) 2022, 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:benchmark_harness/benchmark_harness.dart'
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show PrintEmitter, ScoreEmitter;
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// Similar to BenchmarkBase from package:benchmark_harness.
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class AsyncBenchmarkBase {
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final String name;
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final ScoreEmitter emitter;
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// Empty constructor.
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const AsyncBenchmarkBase(this.name, {this.emitter = const PrintEmitter()});
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// The benchmark code.
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// This function is not used, if both [warmup] and [exercise] are overwritten.
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Future<void> run() async {}
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// Runs a short version of the benchmark. By default invokes [run] once.
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Future<void> warmup() async {
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await run();
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}
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// Exercises the benchmark. By default invokes [run] 10 times.
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Future<void> exercise() async {
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for (var i = 0; i < 10; i++) {
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await run();
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}
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}
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// Not measured setup code executed prior to the benchmark runs.
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Future<void> setup() async {}
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// Not measures teardown code executed after the benchark runs.
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Future<void> teardown() async {}
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// Measures the score for this benchmark by executing it repeatedly until
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// time minimum has been reached.
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static Future<double> measureFor(Function f, int minimumMillis) async {
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final int minimumMicros = minimumMillis * 1000;
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int iter = 0;
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final watch = Stopwatch();
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watch.start();
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int elapsed = 0;
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while (elapsed < minimumMicros) {
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await f();
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elapsed = watch.elapsedMicroseconds;
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iter++;
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}
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return elapsed / iter;
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}
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// Measures the score for the benchmark and returns it.
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Future<double> measure() async {
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await setup();
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// Warmup for at least 100ms. Discard result.
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await measureFor(warmup, 100);
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// Run the benchmark for at least 2000ms.
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final result = await measureFor(exercise, 2000);
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await teardown();
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return result;
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}
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Future<void> report() async {
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emitter.emit(name, await measure());
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}
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}
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307
benchmarks/AsyncLiveVars/dart2/AsyncLiveVars.dart
Normal file
307
benchmarks/AsyncLiveVars/dart2/AsyncLiveVars.dart
Normal file
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@ -0,0 +1,307 @@
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// Copyright (c) 2022, 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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|
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// Micro-benchmark for testing async/await performance in presence of
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// different number of live values across await.
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// @dart=2.9
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import 'dart:async';
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import 'async_benchmark_base.dart' show AsyncBenchmarkBase;
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class MockClass {
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static final String str = "${int.parse('42')}";
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static final List<int> list =
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List<int>.filled(int.parse('3'), int.parse('42'));
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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String get1() => str;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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List<int> get2() => list;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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void use1(String a0) => a0.length;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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void use2(String a0, List<int> a1) => a0.length + a1.length;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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void use4(String a0, List<int> a1, String a2, List<int> a3) =>
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a0.length + a1.length + a2.length + a3.length;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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void use8(String a0, List<int> a1, String a2, List<int> a3, String a4,
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List<int> a5, String a6, List<int> a7) =>
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a0.length +
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a1.length +
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a2.length +
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a3.length +
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a4.length +
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a5.length +
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a6.length +
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a7.length;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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Future<void> asyncMethod() async {}
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}
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class MockClass2 {
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static int val1 = int.parse('42');
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static int val2 = int.parse('43');
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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int get1() => val1;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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int get2() => val2;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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void use1(int a0) => a0;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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void use2(int a0, int a1) => a0 + a1;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
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void use4(int a0, int a1, int a2, int a3) => a0 + a1 + a2 + a3;
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@pragma('vm:never-inline')
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@pragma('dart2js:noInline')
|
||||
Future<void> asyncMethod() async {}
|
||||
}
|
||||
|
||||
class LiveVarsBench extends AsyncBenchmarkBase {
|
||||
LiveVarsBench(String name) : super(name);
|
||||
@override
|
||||
Future<void> exercise() async {
|
||||
// These micro-benchmarks are too small, so
|
||||
// make a larger number of iterations per measurement.
|
||||
for (var i = 0; i < 10000; i++) {
|
||||
await run();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
class LiveObj1 extends LiveVarsBench {
|
||||
LiveObj1() : super('AsyncLiveVars.LiveObj1');
|
||||
final field1 = MockClass();
|
||||
@override
|
||||
Future<void> run() async {
|
||||
final obj1 = field1.get1();
|
||||
await field1.asyncMethod();
|
||||
field1.use1(obj1);
|
||||
await field1.asyncMethod();
|
||||
field1.use1(obj1);
|
||||
await field1.asyncMethod();
|
||||
field1.use1(obj1);
|
||||
}
|
||||
}
|
||||
|
||||
class LiveObj2 extends LiveVarsBench {
|
||||
LiveObj2() : super('AsyncLiveVars.LiveObj2');
|
||||
final field1 = MockClass();
|
||||
@override
|
||||
Future<void> run() async {
|
||||
final obj1 = field1.get1();
|
||||
final obj2 = field1.get2();
|
||||
await field1.asyncMethod();
|
||||
field1.use1(obj1);
|
||||
await field1.asyncMethod();
|
||||
field1.use1(obj1);
|
||||
await field1.asyncMethod();
|
||||
field1.use2(obj1, obj2);
|
||||
}
|
||||
}
|
||||
|
||||
class LiveObj4 extends LiveVarsBench {
|
||||
LiveObj4() : super('AsyncLiveVars.LiveObj4');
|
||||
final field1 = MockClass();
|
||||
final field2 = MockClass();
|
||||
@override
|
||||
Future<void> run() async {
|
||||
final obj1 = field1.get1();
|
||||
final obj2 = field1.get2();
|
||||
final obj3 = field2.get1();
|
||||
final obj4 = field2.get2();
|
||||
await field1.asyncMethod();
|
||||
field1.use1(obj1);
|
||||
await field1.asyncMethod();
|
||||
field2.use1(obj3);
|
||||
await field2.asyncMethod();
|
||||
field1.use4(obj1, obj2, obj3, obj4);
|
||||
}
|
||||
}
|
||||
|
||||
class LiveObj8 extends LiveVarsBench {
|
||||
LiveObj8() : super('AsyncLiveVars.LiveObj8');
|
||||
final field1 = MockClass();
|
||||
final field2 = MockClass();
|
||||
final field3 = MockClass();
|
||||
final field4 = MockClass();
|
||||
@override
|
||||
Future<void> run() async {
|
||||
final obj1 = field1.get1();
|
||||
final obj2 = field1.get2();
|
||||
final obj3 = field2.get1();
|
||||
final obj4 = field2.get2();
|
||||
final obj5 = field3.get1();
|
||||
final obj6 = field3.get2();
|
||||
final obj7 = field4.get1();
|
||||
final obj8 = field4.get2();
|
||||
await field1.asyncMethod();
|
||||
field1.use1(obj1);
|
||||
await field2.asyncMethod();
|
||||
field3.use2(obj5, obj6);
|
||||
await field4.asyncMethod();
|
||||
field2.use8(obj1, obj2, obj3, obj4, obj5, obj6, obj7, obj8);
|
||||
}
|
||||
}
|
||||
|
||||
class LiveObj16 extends LiveVarsBench {
|
||||
LiveObj16() : super('AsyncLiveVars.LiveObj16');
|
||||
final field1 = MockClass();
|
||||
final field2 = MockClass();
|
||||
final field3 = MockClass();
|
||||
final field4 = MockClass();
|
||||
final field5 = MockClass();
|
||||
final field6 = MockClass();
|
||||
final field7 = MockClass();
|
||||
final field8 = MockClass();
|
||||
@override
|
||||
Future<void> run() async {
|
||||
final obj1 = field1.get1();
|
||||
final obj2 = field1.get2();
|
||||
final obj3 = field2.get1();
|
||||
final obj4 = field2.get2();
|
||||
final obj5 = field3.get1();
|
||||
final obj6 = field3.get2();
|
||||
final obj7 = field4.get1();
|
||||
final obj8 = field4.get2();
|
||||
final obj9 = field5.get1();
|
||||
final obj10 = field5.get2();
|
||||
final obj11 = field6.get1();
|
||||
final obj12 = field6.get2();
|
||||
final obj13 = field7.get1();
|
||||
final obj14 = field7.get2();
|
||||
final obj15 = field8.get1();
|
||||
final obj16 = field8.get2();
|
||||
await field1.asyncMethod();
|
||||
field1.use1(obj1);
|
||||
await field2.asyncMethod();
|
||||
field5.use2(obj11, obj12);
|
||||
await field4.asyncMethod();
|
||||
field2.use8(obj1, obj2, obj3, obj4, obj5, obj6, obj7, obj8);
|
||||
field3.use8(obj9, obj10, obj11, obj12, obj13, obj14, obj15, obj16);
|
||||
}
|
||||
}
|
||||
|
||||
class LiveInt1 extends LiveVarsBench {
|
||||
LiveInt1() : super('AsyncLiveVars.LiveInt1');
|
||||
final field1 = MockClass2();
|
||||
@override
|
||||
Future<void> run() async {
|
||||
final int1 = field1.get1();
|
||||
await field1.asyncMethod();
|
||||
field1.use1(int1);
|
||||
await field1.asyncMethod();
|
||||
field1.use1(int1);
|
||||
await field1.asyncMethod();
|
||||
field1.use1(int1);
|
||||
}
|
||||
}
|
||||
|
||||
class LiveInt4 extends LiveVarsBench {
|
||||
LiveInt4() : super('AsyncLiveVars.LiveInt4');
|
||||
final field1 = MockClass2();
|
||||
final field2 = MockClass2();
|
||||
@override
|
||||
Future<void> run() async {
|
||||
final int1 = field1.get1();
|
||||
final int2 = field1.get2();
|
||||
final int3 = field2.get1();
|
||||
final int4 = field2.get2();
|
||||
await field1.asyncMethod();
|
||||
field1.use1(int1);
|
||||
await field1.asyncMethod();
|
||||
field2.use1(int3);
|
||||
await field2.asyncMethod();
|
||||
field1.use4(int1, int2, int3, int4);
|
||||
}
|
||||
}
|
||||
|
||||
class LiveObj2Int2 extends LiveVarsBench {
|
||||
LiveObj2Int2() : super('AsyncLiveVars.LiveObj2Int2');
|
||||
final field1 = MockClass();
|
||||
final field2 = MockClass2();
|
||||
@override
|
||||
Future<void> run() async {
|
||||
final obj1 = field1.get1();
|
||||
final obj2 = field1.get2();
|
||||
final int1 = field2.get1();
|
||||
final int2 = field2.get2();
|
||||
await field1.asyncMethod();
|
||||
field1.use1(obj1);
|
||||
await field1.asyncMethod();
|
||||
field2.use1(int1);
|
||||
await field2.asyncMethod();
|
||||
field1.use2(obj1, obj2);
|
||||
field2.use2(int1, int2);
|
||||
}
|
||||
}
|
||||
|
||||
class LiveObj4Int4 extends LiveVarsBench {
|
||||
LiveObj4Int4() : super('AsyncLiveVars.LiveObj4Int4');
|
||||
final field1 = MockClass();
|
||||
final field2 = MockClass();
|
||||
final field3 = MockClass2();
|
||||
final field4 = MockClass2();
|
||||
@override
|
||||
Future<void> run() async {
|
||||
final obj1 = field1.get1();
|
||||
final obj2 = field1.get2();
|
||||
final obj3 = field2.get1();
|
||||
final obj4 = field2.get2();
|
||||
final int1 = field3.get1();
|
||||
final int2 = field3.get2();
|
||||
final int3 = field4.get1();
|
||||
final int4 = field4.get2();
|
||||
await field1.asyncMethod();
|
||||
field1.use1(obj1);
|
||||
await field2.asyncMethod();
|
||||
field3.use2(int2, int4);
|
||||
await field4.asyncMethod();
|
||||
field2.use4(obj1, obj2, obj3, obj4);
|
||||
field4.use4(int1, int2, int3, int4);
|
||||
}
|
||||
}
|
||||
|
||||
Future<void> main() async {
|
||||
final benchmarks = [
|
||||
LiveObj1(),
|
||||
LiveObj2(),
|
||||
LiveObj4(),
|
||||
LiveObj8(),
|
||||
LiveObj16(),
|
||||
LiveInt1(),
|
||||
LiveInt4(),
|
||||
LiveObj2Int2(),
|
||||
LiveObj4Int4()
|
||||
];
|
||||
for (final bench in benchmarks) {
|
||||
await bench.report();
|
||||
}
|
||||
}
|
||||
68
benchmarks/AsyncLiveVars/dart2/async_benchmark_base.dart
Normal file
68
benchmarks/AsyncLiveVars/dart2/async_benchmark_base.dart
Normal file
|
|
@ -0,0 +1,68 @@
|
|||
// Copyright (c) 2022, 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 'package:benchmark_harness/benchmark_harness.dart'
|
||||
show PrintEmitter, ScoreEmitter;
|
||||
|
||||
// Similar to BenchmarkBase from package:benchmark_harness.
|
||||
class AsyncBenchmarkBase {
|
||||
final String name;
|
||||
final ScoreEmitter emitter;
|
||||
|
||||
// Empty constructor.
|
||||
const AsyncBenchmarkBase(this.name, {this.emitter = const PrintEmitter()});
|
||||
|
||||
// The benchmark code.
|
||||
// This function is not used, if both [warmup] and [exercise] are overwritten.
|
||||
Future<void> run() async {}
|
||||
|
||||
// Runs a short version of the benchmark. By default invokes [run] once.
|
||||
Future<void> warmup() async {
|
||||
await run();
|
||||
}
|
||||
|
||||
// Exercises the benchmark. By default invokes [run] 10 times.
|
||||
Future<void> exercise() async {
|
||||
for (var i = 0; i < 10; i++) {
|
||||
await run();
|
||||
}
|
||||
}
|
||||
|
||||
// Not measured setup code executed prior to the benchmark runs.
|
||||
Future<void> setup() async {}
|
||||
|
||||
// Not measures teardown code executed after the benchark runs.
|
||||
Future<void> teardown() async {}
|
||||
|
||||
// Measures the score for this benchmark by executing it repeatedly until
|
||||
// time minimum has been reached.
|
||||
static Future<double> measureFor(Function f, int minimumMillis) async {
|
||||
final int minimumMicros = minimumMillis * 1000;
|
||||
int iter = 0;
|
||||
final watch = Stopwatch();
|
||||
watch.start();
|
||||
int elapsed = 0;
|
||||
while (elapsed < minimumMicros) {
|
||||
await f();
|
||||
elapsed = watch.elapsedMicroseconds;
|
||||
iter++;
|
||||
}
|
||||
return elapsed / iter;
|
||||
}
|
||||
|
||||
// Measures the score for the benchmark and returns it.
|
||||
Future<double> measure() async {
|
||||
await setup();
|
||||
// Warmup for at least 100ms. Discard result.
|
||||
await measureFor(warmup, 100);
|
||||
// Run the benchmark for at least 2000ms.
|
||||
final result = await measureFor(exercise, 2000);
|
||||
await teardown();
|
||||
return result;
|
||||
}
|
||||
|
||||
Future<void> report() async {
|
||||
emitter.emit(name, await measure());
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue