288 lines
17 KiB
C#
288 lines
17 KiB
C#
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using Unity.PerformanceTesting;
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using Unity.PerformanceTesting.Benchmark;
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using Unity.Burst;
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using Unity.Collections.LowLevel.Unsafe;
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using Unity.Jobs;
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namespace Unity.Collections.PerformanceTests
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{
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/// <summary>
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/// Specifies a class containing performance test methods which should be included in container benchmarking.<para />
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/// The values specified in this enum are unlikely to be needed in user code, but user code will specify the enum type
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/// in a couple places:<para />
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/// <c>[Benchmark(typeof(BenchmarkContainerType))] // <---- HERE<br />
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/// class FooContainerPerformanceTestMethods</c><para />
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/// and<para />
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/// <c>[Test, Performance]<br />
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/// public unsafe void ContainerPerfTestExample(<br />
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/// [Values(100000, 1000000, 10000000)] int capacity,<br />
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/// [Values] BenchmarkContainerType type) // <---- HERE<br />
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/// {</c><para />
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/// Though values may be specified in the performance test method parameter, it is recommended to leave the argument implicitly
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/// covering all enum values as seen in the example above.
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/// </summary>
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[BenchmarkComparison(BenchmarkContainerConfig.BCL, "{0} (BCL)")]
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[BenchmarkComparisonDisplay(SampleUnit.Millisecond, 3, BenchmarkContainerConfig.kRankingMethod)]
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public enum BenchmarkContainerType : int
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{
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/// <summary>Native container performance test will execute on a managed (not burst compiled) code path</summary>
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[BenchmarkName("Native{0} (S)")] Native,
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/// <summary>Native container performance test will execute on a burst compile code path, with safety checks enabled</summary>
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[BenchmarkName("Native{0} (S+B)")] NativeBurstSafety,
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/// <summary>Native container performance test will execute on a burst compile code path, with safety checks disabled</summary>
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[BenchmarkName("Native{0} (B)")] NativeBurstNoSafety,
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/// <summary>Unsafe container performance test will execute on a managed (not burst compiled) code path</summary>
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[BenchmarkName("Unsafe{0} (S)")] Unsafe,
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/// <summary>Unsafe container performance test will execute on a burst compile code path, with safety checks enabled</summary>
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[BenchmarkName("Unsafe{0} (S+B)")] UnsafeBurstSafety,
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/// <summary>Unsafe container performance test will execute on a burst compile code path, with safety checks disabled</summary>
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[BenchmarkName("Unsafe{0} (B)")] UnsafeBurstNoSafety,
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}
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/// <summary>
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/// Configuration settings for benchmarking containers.
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/// </summary>
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public static class BenchmarkContainerConfig
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{
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/// <summary>
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/// An additional value to the enum values defined in <see cref="BenchmarkContainerType"/> which will not be included
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/// in Performance Test Framework test generation but will be included in Benchmark Framework result generation.
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/// </summary>
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public const int BCL = -1;
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internal const BenchmarkRankingStatistic kRankingMethod = BenchmarkRankingStatistic.Median;
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internal const int kCountWarmup = 5;
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internal const int kCountMeasure = 10;
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/// <summary>
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/// Prefix string for individual benchmark menu items
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/// </summary>
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public const string kMenuItemIndividual = "DOTS/Unity.Collections/Generate Individual Container Benchmark/";
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#if UNITY_EDITOR
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[UnityEditor.MenuItem("DOTS/Unity.Collections/Generate Container Benchmarks")]
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#endif
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static void RunBenchmarks() =>
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BenchmarkGenerator.GenerateMarkdown(
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"Containers",
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typeof(BenchmarkContainerType),
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"../../Packages/com.unity.collections/Documentation~/performance-comparison-containers.md",
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$"The **{kRankingMethod} of {kCountMeasure} sample sets** is compared against the baseline on the far right side of the table."
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+ $"<br/>Multithreaded benchmarks divide the processing amongst the specified number of workers."
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+ $"<br/>{kCountWarmup} extra sample sets are run as warmup."
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,
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"Legend",
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new string[]
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{
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"`(S)` = Safety Enabled",
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"`(B)` = Burst Compiled *with Safety Disabled*",
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"`(S+B)` = Burst Compiled *with Safety Enabled*",
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"`(BCL)` = Base Class Library implementation (such as provided by Mono or .NET)",
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"",
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"*`italic`* results are for benchmarking comparison only; these are not included in standard Performance Framework tests",
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});
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#if UNITY_EDITOR
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/// <summary>
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/// Runs a benchmark for a particular class with Performance Test Framework/Benchmark methods. For calling
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/// from custom menu items, for instance.
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/// </summary>
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/// <param name="testClassType"></param>
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public static void RunBenchmark(System.Type testClassType)
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{
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string tempPath = System.IO.Path.Combine(System.IO.Path.GetDirectoryName(
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UnityEditor.FileUtil.GetUniqueTempPathInProject()), $"Benchmark{testClassType.Name}.md");
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BenchmarkGenerator.GenerateMarkdown(
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$"Individual -- {testClassType.Name}",
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new System.Type[] { testClassType },
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tempPath,
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$"The **{kRankingMethod} of {kCountMeasure} sample sets** is compared against the baseline on the far right side of the table."
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+ $"<br/>Multithreaded benchmarks divide the processing amongst the specified number of workers."
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+ $"<br/>{kCountWarmup} extra sample sets are run as warmup."
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,
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"Legend",
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new string[]
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{
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"`(S)` = Safety Enabled",
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"`(B)` = Burst Compiled *with Safety Disabled*",
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"`(S+B)` = Burst Compiled *with Safety Enabled*",
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"`(BCL)` = Base Class Library implementation (such as provided by Mono or .NET)",
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"",
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"*`italic`* results are for benchmarking comparison only; these are not included in standard Performance Framework tests",
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});
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UnityEditor.EditorUtility.RevealInFinder(tempPath);
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}
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#endif
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}
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/// <summary>
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/// Interface to implement container performance tests which will run using <see cref="BenchmarkContainerRunner{T}.Run(int, BenchmarkContainerType, int[])"/>.
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/// Deriving tests from this interface enables both Performance Test Framework and Benchmark Framework to generate and run
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/// tests for the contexts described by <see cref="BenchmarkContainerType"/>.
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/// </summary>
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public interface IBenchmarkContainer
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{
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/// <summary>
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/// Override this to add extra int arguments to a performance test implementation as fields in the implementing type. These arguments
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/// are optionally passed in through <see cref="BenchmarkContainerRunner{T}.Run(int, BenchmarkContainerType, int[])"/>.
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/// </summary>
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/// <param name="capacity">The initial capacity to requested for the container.</param>
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/// <param name="args">A variable number of extra arguments to passed through to the test implementation</param>
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public void SetParams(int capacity, params int[] args) { }
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/// <summary>
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/// Called during setup for each measurement in a sample set with the capacity to allocate to the native container
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/// when the benchmark type is <see cref="BenchmarkContainerType.Native"/>, <see cref="BenchmarkContainerType.NativeBurstNoSafety"/>,
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/// or <see cref="BenchmarkContainerType.NativeBurstSafety"/>.<para />
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/// This is also called during teardown for each measurement in a sample set with '-1' to indicate freeing the container.
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/// </summary>
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/// <param name="capacity">The capacity to allocate for the managed container. Capacity of 0 will still create a container,
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/// but it will be empty. A capacity of -1 will dispose the container and free associated allocation(s).</param>
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public void AllocNativeContainer(int capacity);
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/// <summary>
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/// Called during setup for each measurement in a sample set with the capacity to allocate to the unsafe container
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/// when the benchmark type is <see cref="BenchmarkContainerType.Unsafe"/>, <see cref="BenchmarkContainerType.UnsafeBurstNoSafety"/>,
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/// or <see cref="BenchmarkContainerType.UnsafeBurstSafety"/>.<para />
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/// This is also called during teardown for each measurement in a sample set with '-1' to indicate freeing the container.
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/// </summary>
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/// <param name="capacity">The capacity to allocate for the managed container. Capacity of 0 will still create a container,
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/// but it will be empty. A capacity of -1 will dispose the container and free associated allocation(s).</param>
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public void AllocUnsafeContainer(int capacity); // capacity 0 frees
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/// <summary>
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/// Called during setup for each measurement in a sample set with the capacity to allocate to the managed container
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/// when the benchmark type is <see cref="BenchmarkContainerConfig.BCL"/>.<para />
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/// This is also called during teardown for each measurement in a sample set with '-1' to indicate freeing the container.
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/// </summary>
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/// <param name="capacity">The capacity to allocate for the managed container. Capacity of 0 will still create a container,
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/// but it will be empty. A capacity of -1 will dispose the container and free associated allocation(s).</param>
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/// <returns>A reference to the allocated container when capacity >= 0, and `null` when capacity < 0.</returns>
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public object AllocBclContainer(int capacity);
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/// <summary>
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/// The code which will be executed during performance measurement. This should usually be general enough to
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/// work with any native container.
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/// </summary>
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public void MeasureNativeContainer();
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/// <summary>
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/// The code which will be executed during performance measurement. This should usually be general enough to
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/// work with any unsafe container.
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/// </summary>
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public void MeasureUnsafeContainer();
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/// <summary>
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/// The code which will be executed during performance measurement. This should usually be general enough to
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/// work with any managed container provided by the Base Class Library (BCL).
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/// </summary>
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/// <param name="container">A reference to the managed container allocated in <see cref="AllocBclContainer(int)"/></param>
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public void MeasureBclContainer(object container);
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}
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/// <summary>
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/// Provides the API for running container based Performance Framework tests and Benchmark Framework measurements.
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/// This will typically be the sole call from a performance test. See <see cref="Run(int, BenchmarkContainerType, int[])"/>
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/// for more information.
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/// </summary>
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/// <typeparam name="T">An implementation conforming to the <see cref="IBenchmarkContainer"/> interface for running container performance tests and benchmarks.</typeparam>
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[BurstCompile(CompileSynchronously = true)]
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public static class BenchmarkContainerRunner<T> where T : unmanaged, IBenchmarkContainer
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{
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[BurstCompile(CompileSynchronously = true, DisableSafetyChecks = true)]
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unsafe struct NativeJobBurstST : IJob
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{
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[NativeDisableUnsafePtrRestriction] public T* methods;
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public void Execute() => methods->MeasureNativeContainer();
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}
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[BurstCompile(CompileSynchronously = true, DisableSafetyChecks = false)]
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unsafe struct NativeJobSafetyBurstST : IJob
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{
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[NativeDisableUnsafePtrRestriction] public T* methods;
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public void Execute() => methods->MeasureNativeContainer();
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}
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[BurstCompile(CompileSynchronously = true, DisableSafetyChecks = true)]
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unsafe struct UnsafeJobBurstST : IJob
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{
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[NativeDisableUnsafePtrRestriction] public T* methods;
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public void Execute() => methods->MeasureUnsafeContainer();
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}
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[BurstCompile(CompileSynchronously = true, DisableSafetyChecks = false)]
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unsafe struct UnsafeJobSafetyBurstST : IJob
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{
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[NativeDisableUnsafePtrRestriction] public T* methods;
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public void Execute() => methods->MeasureUnsafeContainer();
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}
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/// <summary>
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/// Called from a typical performance test method to provide both Performance Framework measurements as well as
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/// Benchmark Framework measurements. A typical usage is similar to:
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/// <c>[Test, Performance]<br />
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/// [Category("Performance")]<br />
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/// public unsafe void ToNativeArray(<br />
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/// [Values(100000, 1000000, 10000000)] int capacity,<br />
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/// [Values] BenchmarkContainerType type)<br />
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/// {<br />
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/// BenchmarkContainerRunner<HashSetToNativeArray>.RunST(capacity, type);<br />
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/// }</c>
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/// </summary>
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/// <param name="capacity">The capacity for the container(s) which will be passed to setup methods</param>
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/// <param name="type">The benchmark or performance measurement type to run for containers i.e. <see cref="BenchmarkContainerType.Native"/> etc.</param>
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/// <param name="args">Optional arguments that can be stored in a test implementation class.</param>
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/// <remarks>This will run measurements with <see cref="IJob"/> or directly called on the main thread.</remarks>
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public static unsafe void Run(int capacity, BenchmarkContainerType type, params int[] args)
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{
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var methods = new T();
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methods.SetParams(capacity, args);
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switch (type)
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{
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case (BenchmarkContainerType)(BenchmarkContainerConfig.BCL):
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object container = null;
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BenchmarkMeasure.Measure(typeof(T),
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BenchmarkContainerConfig.kCountWarmup, BenchmarkContainerConfig.kCountMeasure,
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() => methods.MeasureBclContainer(container),
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() => container = methods.AllocBclContainer(capacity), () => container = methods.AllocBclContainer(-1));
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break;
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case BenchmarkContainerType.Native:
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BenchmarkMeasure.Measure(typeof(T),
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BenchmarkContainerConfig.kCountWarmup, BenchmarkContainerConfig.kCountMeasure,
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() => methods.MeasureNativeContainer(),
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() => methods.AllocNativeContainer(capacity), () => methods.AllocNativeContainer(-1));
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break;
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case BenchmarkContainerType.NativeBurstSafety:
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BenchmarkMeasure.Measure(typeof(T),
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BenchmarkContainerConfig.kCountWarmup, BenchmarkContainerConfig.kCountMeasure,
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() => new NativeJobSafetyBurstST { methods = (T*)UnsafeUtility.AddressOf(ref methods) }.Run(),
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() => methods.AllocNativeContainer(capacity), () => methods.AllocNativeContainer(-1));
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break;
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case BenchmarkContainerType.NativeBurstNoSafety:
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BenchmarkMeasure.Measure(typeof(T),
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BenchmarkContainerConfig.kCountWarmup, BenchmarkContainerConfig.kCountMeasure,
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() => new NativeJobBurstST { methods = (T*)UnsafeUtility.AddressOf(ref methods) }.Run(),
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() => methods.AllocNativeContainer(capacity), () => methods.AllocNativeContainer(-1));
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break;
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case BenchmarkContainerType.Unsafe:
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BenchmarkMeasure.Measure(typeof(T),
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BenchmarkContainerConfig.kCountWarmup, BenchmarkContainerConfig.kCountMeasure,
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() => methods.MeasureUnsafeContainer(),
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() => methods.AllocUnsafeContainer(capacity), () => methods.AllocUnsafeContainer(-1));
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break;
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case BenchmarkContainerType.UnsafeBurstSafety:
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BenchmarkMeasure.Measure(typeof(T),
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BenchmarkContainerConfig.kCountWarmup, BenchmarkContainerConfig.kCountMeasure,
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() => new UnsafeJobSafetyBurstST { methods = (T*)UnsafeUtility.AddressOf(ref methods) }.Run(),
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() => methods.AllocUnsafeContainer(capacity), () => methods.AllocUnsafeContainer(-1));
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break;
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case BenchmarkContainerType.UnsafeBurstNoSafety:
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BenchmarkMeasure.Measure(typeof(T),
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BenchmarkContainerConfig.kCountWarmup, BenchmarkContainerConfig.kCountMeasure,
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() => new UnsafeJobBurstST { methods = (T*)UnsafeUtility.AddressOf(ref methods) }.Run(),
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() => methods.AllocUnsafeContainer(capacity), () => methods.AllocUnsafeContainer(-1));
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break;
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}
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}
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}
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}
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