Performance compared to MEF 2
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@AArnott is already working on this.
Since Aug 21, 2026.
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Description
There is a comparison library for several IoC implementations. Comparing VS MEF to MEF 2 shows that VS MEF is only better in startup performance, but significantly slower in other benchmarks:
https://github.com/danielpalme/IocPerformance
Compared versions (this is the nuget package version - the screenshot displays the assembly version):
- VS MEF: 16.1.8
- MEF2: 1.2.0
Do you think it is still justifiable in some cases to use VS MEF over MEF 2? Or could be there a conceptual problem why these benchmark values are worse? Do you maybe have other benchmarks that shows a different picture?
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