iappert / di_speed

Speed comparison of Dependency Injection Container

Test of speed of DI Containers

Attempting to test the speed of various Dependency Injection Containers.

See the results of my tests here: http://philipm.at/2011/0808/

.Net Containers:

• Autofac
• Castle.Windsor
• ninject
• Spring.Net
• StructureMap
• Unity

This repository contains various branches dedicated to multiple DI usage scenarios in an attempt to provide a comprehensive landscape for measurements. Don't rely on the master branch maintaining a specific topic, it might change its content. Instead look at those branches for the specific scenarios that might be of interest to you. The only thing I can somewhat promise is that the master branch will have the most up-to-date spreadsheet with my results.

• with_isregistered: checks that the object is registered with the container before requesting it. This causes some abysmal performance in Unity.
• without_isregistered: requests the object without performing the registration check. Has the potential to yield either NullReferenceExceptions or container specific registration exceptions.
• ex_vs_isreg: compares the speed difference between using IsRegistered and handling specific registration exceptions. Spoiler: don't use exceptions.
• ex_vs_isreg_vs_opt: Unity provides an alternate way to deal with objects not being registered, OptionalDependencyAttribute. This branch, a bit badly named, attempt to look at how this attribute performs.