dotnet/runtime

System.Reflection Performance Tests

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#21,268 opened on Apr 21, 2017

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area-System.Reflectionhelp wantedtenet-performancetest-enhancement

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Description

This is a tracking issue describing the current performance tests we have in the System.Reflection area, and what coverage is missing. The work items below can be completed independently, and they are all of different priority.

When adding performance tests, please adhere to the guidelines listed here.

NOTE: System.Reflection is split across several "contracts", but the majority is actually located and implemented in System.Private.CoreLib / System.Runtime.

Existing Coverage:

None

Missing Coverage:

Core Types (System.Runtime), listed in a general order of importance (but not set in stone).

  • Type
  • TypeInfo
  • Assembly
  • MemberInfo (and subtypes)
  • RuntimeReflectionExtensions
  • TypedReference
  • CustomAttributeExtensions

System.Reflection.TypeExtensions (less important than above)

  • TypeExtensions
  • *_InfoExtensions
  • AssemblyExtensions

Contributor guide

Research direction
Select a missing coverage item, e.g., Type, and add performance tests following the guidelines in the issue. Benchmark the method using BenchmarkDotNet in the corefx performance test project.
Tech stack
csharp
Domain
backend
Issue type
Test
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C#.NETGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70