FastHashes 3.0.0

.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There is a newer version of this package available.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 FastHashes --version 3.0.0                

                    
                

            
NuGet\Install-Package FastHashes -Version 3.0.0
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="FastHashes" Version="3.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
paket add FastHashes --version 3.0.0                

                    
                

            
#r "nuget: FastHashes, 3.0.0"
#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. 
// Install FastHashes as a Cake Addin
#addin nuget:?package=FastHashes&version=3.0.0

// Install FastHashes as a Cake Tool
#tool nuget:?package=FastHashes&version=3.0.0

FastHashes

FashHashes is a suite of .NET non-cryptographic hash functions.

<table> <tr> <td align="right">Status:</td> <td align="left"> <a href="https://github.com/TommasoBelluzzo/FastHashes/actions/workflows/continuous_integration.yml"><img alt="Build" src="https://img.shields.io/github/workflow/status/TommasoBelluzzo/FastHashes/Continuous%20Integration?style=flat&label=Build&color=1081C2"/></a> <a href="https://coveralls.io/github/TommasoBelluzzo/FastHashes?branch=master"><img alt="Coverage" src="https://img.shields.io/coveralls/github/TommasoBelluzzo/FastHashes?style=flat&label=Coverage&color=1081C2"/></a> </td> </tr> <tr> <td align="right">Info:</td> <td align="left"> <a href="#"><img alt="License" src="https://img.shields.io/github/license/TommasoBelluzzo/FastHashes?style=flat&label=License&color=1081C2"/></a> <a href="#"><img alt="Lines" src="https://img.shields.io/tokei/lines/github/TommasoBelluzzo/FastHashes?style=flat&label=Lines&color=1081C2"/></a> <a href="#"><img alt="Size" src="https://img.shields.io/github/repo-size/TommasoBelluzzo/FastHashes?style=flat&label=Size&color=1081C2"/></a> </td> </tr> <tr> <td align="right">NuGet:</td> <td align="left"> <a href="https://www.nuget.org/packages/FastHashes/"><img alt="Version" src="https://img.shields.io/nuget/v/FastHashes?style=flat&label=Version"/></a> <a href="https://www.nuget.org/packages/FastHashes/"><img alt="Downloads" src="https://img.shields.io/nuget/dt/FastHashes?style=flat&label=Downloads&color=1081C2"/></a> </td> </tr> <tr> <td align="right">Donation:</td> <td align="left"> <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=T8X35C2FED9SU"><img alt="PayPal" src="https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif"/></a> </td> </tr> </table>

Main Features

  • High Performing: deeply-optimized code makes extensive use of method inlining and unsafe memory pointers in order to speed up the computations.
  • Allocation Free: all the internal functions follow a zero-allocation approach, only primitive types and/or arrays of primitive types are used by the algorithms.
  • Endian-Agnostic: all the hashes provide consistent results regardless of the machine byte order, while only moderately affecting the overall performance of the computations.
  • Platform-Agnostic: the code has been developed under .NET Standard framework and both x86 and x64 environments are fully supported.
  • Fully Managed: since version 3.0.0, pointers requiring unsafe memory access contexts have been completely removed and the library is now fully managed.

Hashes

The library includes the following non-cryptographic hashes:

Requirements

The following Frameworks are supported:

  • Library: .NET Standard 2.0, .NET Standard 2.1
  • Auxiliary Projects: .NET Core 2.1, .NET Core 3.1, .NET 5.0, .NET 6.0

The following NuGet packages are required for performing unit tests:

Performance Benchmarks

Hash Rank Hash Name Bulk Speed Test Average ↓ Chunks Speed Test Average
- DummyHash (Reference) 609.34 GB/s 2.06 GB/s
1 FarmHash64 11.47 GB/s 626.60 MB/s
2 FarmHash128 11.27 GB/s 641.03 MB/s
3 MetroHash128-V1 11.11 GB/s 636.52 MB/s
4 MetroHash64-V1 11.10 GB/s 628.81 MB/s
5 MetroHash128-V2 11.06 GB/s 635.34 MB/s
6 MetroHash64-V2 11.05 GB/s 620.92 MB/s
7 XxHash64 10.03 GB/s 596.90 MB/s
8 PengyHash 8.73 GB/s 517.22 MB/s
9 MurmurHash128-x64 6.70 GB/s 485.59 MB/s
10 MurmurHash64-x64 6.56 GB/s 467.14 MB/s
11 XxHash32 6.43 GB/s 482.92 MB/s
12 FastHash64 5.34 GB/s 444.45 MB/s
13 FastHash32 5.26 GB/s 440.91 MB/s
14 FarmHash32 4.27 GB/s 394.83 MB/s
15 FastPositiveHash-V1 4.10 GB/s 386.51 MB/s
16 MurmurHash128-x86 4.05 GB/s 383.60 MB/s
17 MurmurHash64-x86 4.01 GB/s 374.73 MB/s
18 FastPositiveHash_V2 3.99 GB/s 386.33 MB/s
19 MurmurHash32 2.82 GB/s 332.35 MB/s
20 MumHash 2.44 GB/s 312.24 MB/s
21 FastPositiveHash-V0 2.29 GB/s 320.69 MB/s
22 MirHash 2.03 GB/s 298.14 MB/s
23 SipHash-13 1.28 GB/s 230.67 MB/s
24 HighwayHash256 914.16 MB/s 125.78 MB/s
25 HighwayHash64 899.65 MB/s 151.54 MB/s
26 HighwayHash128 883.51 MB/s 143.84 MB/s
27 SpookyHash32 752.43 MB/s 156.79 MB/s
28 SpookyHash64 734.84 MB/s 149.36 MB/s
29 SipHash-24 734.74 MB/s 168.43 MB/s
30 SpookyHash128 723.91 MB/s 155.67 MB/s
31 HalfSipHash 364.78 MB/s 119.96 MB/s

The tests above have been conducted with the following machine setup:

  • CPU: Intel Core i7-7700HQ @2.80GHz (4 Cores, 8 Threads, 256KB L1 Cache)
  • RAM: 16 GB x DDR4 SO-DIMM @1200MHz
  • OS: Microsoft Windows 10 64-Bit
Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  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. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 is compatible. 
.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.

  • .NETStandard 2.0

  • .NETStandard 2.1

    • No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories (1)

Showing the top 1 popular GitHub repositories that depend on FastHashes:

Repository Stars
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Version Downloads Last updated
3.5.0 125,271 12/15/2022
3.4.0 900 12/12/2022
3.3.0 4,232 9/11/2022
3.2.0 1,528 9/6/2022
3.1.0 881 9/5/2022
3.0.0 956 8/30/2022
2.5.0 17,940 12/9/2021
2.4.0 5,174 10/1/2021
2.3.0 906 10/1/2021
2.2.0 804 9/30/2021
2.1.0 858 9/29/2021
2.0.0 3,704 7/17/2021
1.7.6 29,810 10/27/2020
1.7.5 2,182 7/17/2019
1.7.4 1,089 7/16/2019
1.7.3 980 7/15/2019
1.7.2 1,052 7/13/2019
1.7.1 1,040 7/12/2019
1.7.0 1,127 7/11/2019