blob: 3d1d6a3b586e379d9a4febd11d44c50bf7bd42c2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
// 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 System;
using Microsoft.Xunit.Performance;
namespace Functions
{
public static partial class MathTests
{
// Tests MathF.Cos(float) over 5000 iterations for the domain 0, PI
private const float cosSingleDelta = 0.000628318531f;
private const float cosSingleExpectedResult = -0.993487537f;
[Benchmark]
public static void CosSingleBenchmark()
{
foreach (var iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
CosSingleTest();
}
}
}
public static void CosSingleTest()
{
var result = 0.0f; var value = 0.0f;
for (var iteration = 0; iteration < iterations; iteration++)
{
value += cosSingleDelta;
result += MathF.Cos(value);
}
var diff = MathF.Abs(cosSingleExpectedResult - result);
if (diff > singleEpsilon)
{
throw new Exception($"Expected Result {cosSingleExpectedResult,10:g9}; Actual Result {result,10:g9}");
}
}
}
}
|
