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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 large holey double arrays.
const largeHoleyArray = new Array(1e5);
for (var i = 0; i < 100; i++) {
largeHoleyArray[i] = i + 6.66;
}
for (var i = 5000; i < 5500; i++) {
largeHoleyArray[i] = i + 6.66;
}
// ----------------------------------------------------------------------------
// Benchmark: Spread
// ----------------------------------------------------------------------------
function SpreadLargeHoley() {
var newArr = [...largeHoleyArray];
// basic sanity check
if (newArr.length != largeHoleyArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: ForLength
// ----------------------------------------------------------------------------
function ForLengthLargeHoley() {
var newArr = new Array(largeHoleyArray.length);
for (let i = 0; i < largeHoleyArray.length; i++) {
newArr[i] = largeHoleyArray[i];
}
// basic sanity check
if (newArr.length != largeHoleyArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: ForLengthEmpty
// ----------------------------------------------------------------------------
function ForLengthEmptyLargeHoley() {
var newArr = [];
for (let i = 0; i < largeHoleyArray.length; i++) {
newArr[i] = largeHoleyArray[i];
}
// basic sanity check
if (newArr.length != largeHoleyArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: Slice
// ----------------------------------------------------------------------------
function SliceLargeHoley() {
var newArr = largeHoleyArray.slice();
// basic sanity check
if (newArr.length != largeHoleyArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: Slice0
// ----------------------------------------------------------------------------
function Slice0LargeHoley() {
var newArr = largeHoleyArray.slice(0);
// basic sanity check
if (newArr.length != largeHoleyArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: ConcatReceive
// ----------------------------------------------------------------------------
function ConcatReceiveLargeHoley() {
var newArr = largeHoleyArray.concat();
// basic sanity check
if (newArr.length != largeHoleyArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: ConcatArg
// ----------------------------------------------------------------------------
function ConcatArgLargeHoley() {
var newArr = [].concat(largeHoleyArray);
// basic sanity check
if (newArr.length != largeHoleyArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: ForOfPush
// ----------------------------------------------------------------------------
function ForOfPushLargeHoley() {
var newArr = [];
for (let x of largeHoleyArray) {
newArr.push(x)
}
// basic sanity check
if (newArr.length != largeHoleyArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Benchmark: MapId
// ----------------------------------------------------------------------------
function MapIdLargeHoley() {
var newArr = largeHoleyArray.map(x => x);
// basic sanity check
if (newArr.length != largeHoleyArray.length) throw 666;
return newArr;
}
// ----------------------------------------------------------------------------
// Setup and Run
// ----------------------------------------------------------------------------
load('../base.js');
var success = true;
function PrintResult(name, result) {
print(name + '-ArrayLiteralInitialSpreadLargeDoubleHoley(Score): ' + result);
}
function PrintError(name, error) {
PrintResult('Error: ' + name, error);
success = false;
}
// Run the benchmark (5 x 100) iterations instead of 1 second.
function CreateBenchmark(name, f) {
new BenchmarkSuite(name, [1000], [ new Benchmark(name, false, false, 5, f) ]);
}
CreateBenchmark('Spread', SpreadLargeHoley);
CreateBenchmark('ForLength', ForLengthLargeHoley);
CreateBenchmark('ForLengthEmpty', ForLengthEmptyLargeHoley);
CreateBenchmark('Slice', SliceLargeHoley);
CreateBenchmark('Slice0', Slice0LargeHoley);
CreateBenchmark('ConcatReceive', ConcatReceiveLargeHoley);
CreateBenchmark('ConcatArg', ConcatArgLargeHoley);
BenchmarkSuite.config.doWarmup = true;
BenchmarkSuite.config.doDeterministic = true;
BenchmarkSuite.RunSuites({NotifyResult: PrintResult, NotifyError: PrintError});
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