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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
using Microsoft.Xunit.Performance;
using System;
using System.Runtime.CompilerServices;
using Xunit;
[assembly: OptimizeForBenchmarks]
namespace Benchstone.BenchI
{
public static class Array2
{
#if DEBUG
public const int Iterations = 1;
#else
public const int Iterations = 500000;
#endif
static T[][][] AllocArray<T>(int n1, int n2, int n3) {
T[][][] a = new T[n1][][];
for (int i = 0; i < n1; ++i) {
a[i] = new T[n2][];
for (int j = 0; j < n2; j++) {
a[i][j] = new T[n3];
}
}
return a;
}
static void Initialize(int[][][] s) {
for (int i = 0; i < 10; i++) {
for (int j = 0; j < 10; j++) {
for (int k = 0; k < 10; k++) {
s[i][j][k] = (2 * i) - (3 * j) + (5 * k);
}
}
}
}
static bool VerifyCopy(int[][][] s, int[][][] d) {
for (int i = 0; i < 10; i++) {
for (int j = 0; j < 10; j++) {
for (int k = 0; k < 10; k++) {
if (s[i][j][k] != d[i][j][k]) {
return false;
}
}
}
}
return true;
}
[MethodImpl(MethodImplOptions.NoInlining)]
static bool Bench(int loop) {
int[][][] s = AllocArray<int>(10, 10, 10);
int[][][] d = AllocArray<int>(10, 10, 10);
Initialize(s);
for (; loop != 0; loop--) {
for (int i = 0; i < 10; i++) {
for (int j = 0; j < 10; j++) {
for (int k = 0; k < 10; k++) {
d[i][j][k] = s[i][j][k];
}
}
}
}
bool result = VerifyCopy(s, d);
return result;
}
[Benchmark]
public static void Test() {
foreach (var iteration in Benchmark.Iterations) {
using (iteration.StartMeasurement()) {
Bench(Iterations);
}
}
}
static bool TestBase() {
bool result = Bench(Iterations);
return result;
}
public static int Main() {
bool result = TestBase();
return (result ? 100 : -1);
}
}
}
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