BitFaster.Caching 2.1.2

Prefix Reserved
.NET 6.0 This package targets .NET 6.0. The package is compatible with this framework or higher. .NET Core 3.1 This package targets .NET Core 3.1. The package is compatible with this framework or higher. .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package BitFaster.Caching --version 2.1.2
                    


                    

                
NuGet\Install-Package BitFaster.Caching -Version 2.1.2
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="BitFaster.Caching" Version="2.1.2" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="BitFaster.Caching" Version="2.1.2" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="BitFaster.Caching" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add BitFaster.Caching --version 2.1.2
                    


                    

                
#r "nuget: BitFaster.Caching, 2.1.2"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package BitFaster.Caching@2.1.2
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=BitFaster.Caching&version=2.1.2
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=BitFaster.Caching&version=2.1.2
                    


                            Install as a Cake Tool

⚡ BitFaster.Caching

High performance, thread-safe in-memory caching primitives for .NET.

ConcurrentLru

ConcurrentLru is a light weight drop in replacement for ConcurrentDictionary, but with bounded size enforced by the TU-Q eviction policy (based on 2Q). There are no background threads, no global locks, concurrent throughput is high, lookups are fast and hit rate outperforms a pure LRU in all tested scenarios.

Choose a capacity and use just like ConcurrentDictionary, but with bounded size:

int capacity = 128;
var lru = new ConcurrentLru<string, SomeItem>(capacity);

var value = lru.GetOrAdd("key", (key) => new SomeItem(key));

ConcurrentLfu

ConcurrentLfu is a drop in replacement for ConcurrentDictionary, but with bounded size enforced by the W-TinyLFU admission policy. ConcurrentLfu has near optimal hit rate and high scalability. Reads and writes are buffered then replayed asynchronously to mitigate lock contention.

Choose a capacity and use just like ConcurrentDictionary, but with bounded size:

int capacity = 128;
var lfu = new ConcurrentLfu<string, SomeItem>(capacity);

var value = lfu.GetOrAdd("key", (key) => new SomeItem(key));

Documentation

Please refer to the wiki for full API documentation, and a complete analysis of hit rate, latency and throughput.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 is compatible.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 is compatible. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (21)

Showing the top 5 NuGet packages that depend on BitFaster.Caching:

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RabbitMQ support for NServiceBus
NServiceBus.Transport.AzureServiceBus

Azure Service Bus transport for NServiceBus
Splitio

Package Description
OPCFoundation.NetStandard.Opc.Ua.Client

OPC UA Client Class Library
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GitHub repositories (9)

Showing the top 9 popular GitHub repositories that depend on BitFaster.Caching:

Repository Stars
jellyfin/jellyfin
The Free Software Media System - Server Backend & API
Flow-Launcher/Flow.Launcher
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OPCFoundation/UA-.NETStandard
OPC Unified Architecture .NET Standard
Nexus-Mods/NexusMods.App
Home of the development of the Nexus Mods App
goatcorp/Dalamud
FFXIV plugin framework and API
planetarium/libplanet
Blockchain in C#/.NET for on-chain, decentralized gaming
RedpointGames/uet
UET (Unreal Engine Tool) makes building and testing Unreal Engine projects and plugins easy. It can distribute builds with BuildGraph, remotely execute automation tests on device and across multiple machines, handles fault tolerance and automatic retries and generally makes the whole experience of automating Unreal Engine a lot more pleasant.
Dubzer/TgTranslator
Telegram bot that translates messages in groups
ncosentino/DevLeader
Projects referred to by my blog, Dev Leader
Version Downloads Last Updated
2.5.4 203,572 6/28/2025
2.5.3 1,030,406 1/13/2025
2.5.2 2,103,823 9/15/2024
2.5.1 577,197 6/9/2024
2.5.0 83,762 5/9/2024
2.4.1 2,517,764 12/11/2023
2.4.0 7,328 11/24/2023
2.3.3 60,393 11/11/2023
2.3.2 154,862 10/25/2023
2.3.1 2,042 10/22/2023
2.3.0 26,501 10/6/2023
2.2.1 34,508 8/22/2023
2.2.0 202,848 4/29/2023
2.1.3 54,361 3/17/2023
2.1.2 10,006 3/11/2023
2.1.1 347,857 10/14/2022
2.1.0 45,454 9/11/2022
2.0.0 2,260,800 7/29/2022
1.1.0 14,776 7/1/2022
1.0.7 161,189 2/13/2022
1.0.6 28,613 11/17/2021
1.0.5 11,076 11/10/2021
1.0.4 43,700 9/11/2021
1.0.3 63,523 5/31/2021
1.0.2 71,658 1/12/2021
1.0.1 27,953 7/9/2020
1.0.0 2,420 7/2/2020
0.9.4 2,435 6/19/2020
0.9.3 2,130 6/16/2020
0.9.2 2,067 6/15/2020
0.9.1 3,138 6/14/2020