diff options
Diffstat (limited to 'tests/src/JIT/Performance/CodeQuality/Math/Functions/Single/CosSingle.cs')
-rw-r--r-- | tests/src/JIT/Performance/CodeQuality/Math/Functions/Single/CosSingle.cs | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/tests/src/JIT/Performance/CodeQuality/Math/Functions/Single/CosSingle.cs b/tests/src/JIT/Performance/CodeQuality/Math/Functions/Single/CosSingle.cs new file mode 100644 index 0000000000..3d1d6a3b58 --- /dev/null +++ b/tests/src/JIT/Performance/CodeQuality/Math/Functions/Single/CosSingle.cs @@ -0,0 +1,47 @@ +// 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}"); + } + } + } +} |