64 lines
1.6 KiB
Plaintext
64 lines
1.6 KiB
Plaintext
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== Resources
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=== Documentation
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* https://learn.microsoft.com/en-us/dotnet/api/system.collections.generic.linkedlist-1[LinkedList<T>]
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=== Benchmarks
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[options="header"]
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|===
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| Method | Runtime | Mean | StdDev | Allocated
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| LastMethod | .NET 7.0 | 919,577,629.0 ns | 44,299,688.61 ns | 48504 B
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| LastProperty | .NET 7.0 | 271.8 ns | 15.63 ns | -
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| LastMethod | .NET Framework 4.6.2 | 810,316,427.1 ns | 47,768,482.31 ns | 57344 B
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| LastProperty | .NET Framework 4.6.2 | 372.0 ns | 13.38 ns | -
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|===
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The results were generated by running the following snippet with https://github.com/dotnet/BenchmarkDotNet[BenchmarkDotNet]:
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[source,csharp]
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----
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private LinkedList<int> data;
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private Random random = new Random();
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[Params(100_000)]
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public int Size { get; set; }
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[Params(1_000)]
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public int Runs { get; set; }
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[GlobalSetup]
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public void Setup() =>
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data = new LinkedList<int>(Enumerable.Range(0, Size).Select(x => random.Next()));
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[Benchmark(Baseline = true)]
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public void LastMethod()
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{
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for (var i = 0; i < Runs; i++)
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{
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_ = data.Last(); // Enumerable.Last()
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}
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}
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[Benchmark]
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public void LastProperty()
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{
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for (var i = 0; i < Runs; i++)
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{
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_ = data.Last; // Last property
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}
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}
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----
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Hardware configuration:
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[source]
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----
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BenchmarkDotNet=v0.13.5, OS=Windows 10 (10.0.19045.2846/22H2/2022Update)
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11th Gen Intel Core i7-11850H 2.50GHz, 1 CPU, 16 logical and 8 physical cores
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[Host] : .NET Framework 4.8 (4.8.4614.0), X64 RyuJIT VectorSize=256
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.NET 7.0 : .NET 7.0.5 (7.0.523.17405), X64 RyuJIT AVX2
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.NET Framework 4.6.2 : .NET Framework 4.8 (4.8.4614.0), X64 RyuJIT VectorSize=256
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----
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