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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Comparing different copy schemes against spread initial literals.
// Benchmarks for small packed double arrays.
var smallArray = Array.from(Array(100).keys());
for (var i = 0; i < 100; i++) {
smallArray[i] += 6.66;
}
// ----------------------------------------------------------------------------
// Benchmark: Spread
// ----------------------------------------------------------------------------
function SpreadSmall() {
var newArr = [...smallArray];
// basic sanity check
if (newArr.length != smallArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: ForLength
// ----------------------------------------------------------------------------
function ForLengthSmall() {
var newArr = new Array(smallArray.length);
for (let i = 0; i < smallArray.length; i++) {
newArr[i] = smallArray[i];
}
// basic sanity check
if (newArr.length != smallArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: ForLengthEmpty
// ----------------------------------------------------------------------------
function ForLengthEmptySmall() {
var newArr = [];
for (let i = 0; i < smallArray.length; i++) {
newArr[i] = smallArray[i];
}
// basic sanity check
if (newArr.length != smallArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: Slice
// ----------------------------------------------------------------------------
function SliceSmall() {
var newArr = smallArray.slice();
// basic sanity check
if (newArr.length != smallArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: Slice0
// ----------------------------------------------------------------------------
function Slice0Small() {
var newArr = smallArray.slice(0);
// basic sanity check
if (newArr.length != smallArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: ConcatReceive
// ----------------------------------------------------------------------------
function ConcatReceiveSmall() {
var newArr = smallArray.concat();
// basic sanity check
if (newArr.length != smallArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: ConcatArg
// ----------------------------------------------------------------------------
function ConcatArgSmall() {
var newArr = [].concat(smallArray);
// basic sanity check
if (newArr.length != smallArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: ForOfPush
// ----------------------------------------------------------------------------
function ForOfPushSmall() {
var newArr = [];
for (let x of smallArray) {
newArr.push(x)
}
// basic sanity check
if (newArr.length != smallArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: MapId
// ----------------------------------------------------------------------------
function MapIdSmall() {
var newArr = smallArray.map(x => x);
// basic sanity check
if (newArr.length != smallArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Setup and Run
// ----------------------------------------------------------------------------
load('../base.js');
var success = true;
function PrintResult(name, result) {
print(name + '-ArrayLiteralInitialSpreadSmallDoublePacked(Score): ' + result);
}
function PrintError(name, error) {
PrintResult('Error: ' + name, error);
success = false;
}
function CreateBenchmark(name, f) {
new BenchmarkSuite(name, [1000], [ new Benchmark(name, false, false, 0, f) ]);
}
CreateBenchmark('Spread', SpreadSmall);
CreateBenchmark('ForLength', ForLengthSmall);
CreateBenchmark('ForLengthEmpty', ForLengthEmptySmall);
CreateBenchmark('Slice', SliceSmall);
CreateBenchmark('Slice0', Slice0Small);
CreateBenchmark('ConcatReceive', ConcatReceiveSmall);
CreateBenchmark('ConcatArg', ConcatArgSmall);
CreateBenchmark('ForOfPush', ForOfPushSmall);
CreateBenchmark('MapId', MapIdSmall);
BenchmarkSuite.config.doWarmup = true;
BenchmarkSuite.config.doDeterministic = false;
BenchmarkSuite.RunSuites({NotifyResult: PrintResult, NotifyError: PrintError});
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