Boring3.FastGenericNew 1.1.0

There is a newer version of this package available.
See the version list below for details.

dotnet add package Boring3.FastGenericNew --version 1.1.0

NuGet\Install-Package Boring3.FastGenericNew -Version 1.1.0

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="Boring3.FastGenericNew" Version="1.1.0" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

paket add Boring3.FastGenericNew --version 1.1.0

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: Boring3.FastGenericNew, 1.1.0"

#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 Boring3.FastGenericNew as a Cake Addin
#addin nuget:?package=Boring3.FastGenericNew&version=1.1.0

// Install Boring3.FastGenericNew as a Cake Tool
#tool nuget:?package=Boring3.FastGenericNew&version=1.1.0

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

FastGenericNew

FastGenericNew is 10x times faster than Activator.CreateInstance<T>() / new T()

Install

DotNet CLI

dotnet add package Boring3.FastGenericNew --version 1.1.0

Package Reference

<PackageReference Include="Boring3.FastGenericNew" Version="1.1.0" />

Package Manager

Install-Package Boring3.FastGenericNew -Version 1.1.0

Features

Parameters Supported
Non-Public Constructor Supported
Zero box/unbox
ValueType Supported

Examples

Fast create instance of T:

FastNew<T>.CreateInstance();

Fast create instance of T with parameter(s):

FastNew<T, string>.CreateInstance("parameter");
FastNew<T, string, int>.CreateInstance("parameter", 0);

Benchmark

Environment


BenchmarkDotNet=v0.12.1, OS=Windows 10.0.19042
AMD Ryzen 9 3900X, 1 CPU, 24 logical and 12 physical cores
.NET Core SDK=5.0.100
  [Host]     : .NET Core 5.0.0 (CoreCLR 5.0.20.51904, CoreFX 5.0.20.51904), X64 RyuJIT
  DefaultJob : .NET Core 5.0.0 (CoreCLR 5.0.20.51904, CoreFX 5.0.20.51904), X64 RyuJIT

Reference Type (class)

Method	Mean	Error	StdDev	Ratio	RatioSD	Baseline	Gen 0	Gen 1	Gen 2	Allocated	Code Size
DirectNew	1.757 ns	0.0083 ns	0.0074 ns	0.79	0.01	No	0.0029	-	-	24 B	25 B
FastNewT	2.223 ns	0.0121 ns	0.0108 ns	1.00	0.00	Yes	0.0029	-	-	24 B	24 B
ActivatorCreate	32.653 ns	0.4308 ns	0.4030 ns	14.69	0.18	No	0.0029	-	-	24 B	88 B
NewT	32.717 ns	0.6927 ns	0.7977 ns	14.70	0.37	No	0.0029	-	-	24 B	88 B

Value Type (struct)

Method	Mean	Error	StdDev	Median	Ratio	RatioSD	Baseline	Gen 0	Gen 1	Gen 2	Allocated	Code Size
DirectNew	0.0014 ns	0.0011 ns	0.0010 ns	0.0014 ns	0.004	0.00	No	-	-	-	-	3 B
NewT	0.0102 ns	0.0130 ns	0.0121 ns	0.0023 ns	0.020	0.03	No	-	-	-	-	3 B
FastNewT	0.4629 ns	0.0099 ns	0.0077 ns	0.4613 ns	1.000	0.00	Yes	-	-	-	-	24 B
ActivatorCreate	33.6680 ns	0.7328 ns	0.6855 ns	33.7002 ns	72.346	1.36	No	0.0029	-	-	24 B	88 B

Note: JIT have two solutions for new T() compilation.
For Reference Types. new T() will equals Activator.CreateInstance<T>()
For Value Types. new T() will allocate it inline. So it fast than FastNew that unable to be inlined.

How it works

Not like Activator.CreateInstance<T>(). FastGenericNew will dynamically compile a method that return T. And cache it up by generic.

You can invoke this method by a delegate with no any box/unbox.

But there's still a little problem anyway.
.NET Runtime will not inline delegate in any case currently.
So it causes bit more costs than direct new.

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 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.

.NETStandard 2.0
- No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last updated
2.0.0	4,996	11/30/2020
1.1.0	1,263	11/9/2020