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.NET 8 FrozenDictionary v other Dictionary type benchmarks
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using System.Collections.Generic; | |
using System; | |
using BenchmarkDotNet.Attributes; | |
using BenchmarkDotNet.Columns; | |
using BenchmarkDotNet.Configs; | |
using BenchmarkDotNet.Jobs; | |
using BenchmarkDotNet.Reports; | |
using System.Collections.Frozen; | |
using System.Linq; | |
using System.Collections.ObjectModel; | |
using System.Collections.Immutable; | |
namespace Benchmarks | |
{ | |
[Config(typeof(Config))] | |
[HideColumns(Column.Job, Column.RatioSD, Column.AllocRatio, Column.Gen0, Column.Gen1)] | |
[SimpleJob(RuntimeMoniker.Net80)] | |
[GroupBenchmarksBy(BenchmarkLogicalGroupRule.ByCategory)] | |
[MemoryDiagnoser] | |
public class DictionaryLookupBenchmarks | |
{ | |
private KeyValuePair<string, int>[] _items; | |
private string[] _keys; | |
private Dictionary<string, int> _dictionary; | |
private ReadOnlyDictionary<string, int> _readOnlyDictionary; | |
private ImmutableDictionary<string, int> _immutableDictionary; | |
private FrozenDictionary<string, int> _frozenDictionary; | |
[Params(1000)] | |
public int Items; | |
[GlobalSetup] | |
public void GLobalSetup() | |
{ | |
_items = Enumerable | |
.Range(0, Items) | |
.Select(_ => new KeyValuePair<string, int>(Guid.NewGuid().ToString(), 0)) | |
.ToArray(); | |
_keys = _items.Select(k => k.Key).ToArray(); | |
_dictionary = new Dictionary<string, int>(_items); | |
_readOnlyDictionary = new ReadOnlyDictionary<string, int>(_items.ToDictionary(i => i.Key, i => i.Value)); | |
_immutableDictionary = ImmutableDictionary.ToImmutableDictionary(_items); | |
_frozenDictionary = FrozenDictionary.ToFrozenDictionary(_items); | |
} | |
[BenchmarkCategory("Construct"), Benchmark(Baseline = true)] | |
public Dictionary<string, int> ConstructDictionary() => | |
new Dictionary<string, int>(_items); | |
[BenchmarkCategory("Construct"), Benchmark] | |
public ReadOnlyDictionary<string, int> ConstructReadOnlyDictionary() => | |
new ReadOnlyDictionary<string, int>(_items.ToDictionary(i => i.Key, i => i.Value)); | |
[BenchmarkCategory("Construct"), Benchmark] | |
public ImmutableDictionary<string, int> ConstructImmutableDictionary() => | |
ImmutableDictionary.ToImmutableDictionary(_items); | |
[BenchmarkCategory("Construct"), Benchmark] | |
public FrozenDictionary<string, int> ConstructFrozenDictionary() => | |
FrozenDictionary.ToFrozenDictionary(_items); | |
[BenchmarkCategory("TryGetValue_Found"), Benchmark(Baseline = true)] | |
public bool Dictionary_TryGetValue_Found() | |
{ | |
bool allFound = true; | |
foreach (string key in _keys) | |
{ | |
int value; | |
allFound &= _dictionary.TryGetValue(key, out value); | |
} | |
return allFound; | |
} | |
[BenchmarkCategory("TryGetValue_Found"), Benchmark] | |
public bool ReadOnlyDictionary_TryGetValue_Found() | |
{ | |
bool allFound = true; | |
foreach (string key in _keys) | |
{ | |
int value; | |
allFound &= _readOnlyDictionary.TryGetValue(key, out value); | |
} | |
return allFound; | |
} | |
[BenchmarkCategory("TryGetValue_Found"), Benchmark] | |
public bool ImmutableDictionary_TryGetValue_Found() | |
{ | |
bool allFound = true; | |
foreach (string key in _keys) | |
{ | |
int value; | |
allFound &= _immutableDictionary.TryGetValue(key, out value); | |
} | |
return allFound; | |
} | |
[BenchmarkCategory("TryGetValue_Found"), Benchmark] | |
public bool FrozenDictionary_TryGetValue_Found() | |
{ | |
bool allFound = true; | |
foreach (string key in _keys) | |
{ | |
int value; | |
allFound &= _frozenDictionary.TryGetValue(key, out value); | |
} | |
return allFound; | |
} | |
private class Config : ManualConfig | |
{ | |
public Config() | |
{ | |
SummaryStyle = | |
SummaryStyle.Default.WithRatioStyle(RatioStyle.Percentage); | |
} | |
} | |
} | |
} |
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