dotnet/BenchmarkDotNet

Add CancellationToken support on non-async benchmark runner APIs

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#3,204 opened on Jul 22, 2026

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 (4 comments) (0 reactions) (1 assignee)C# (1,062 forks)batch import
good first issueup-for-grabs

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Description

Currently BenchmarkDotNet support CancellationToken on Async APIs.

It's also desirable to support CancellationToken on non-async APIs also on BenchmarkSwitcher/BenchmarkRunner.

Expected usage Use xUnit.v3's TestContext.Current.CancellationToken to run benchmarks. Without

Contributor guide

Research direction
Examine the existing async APIs that support CancellationToken in BenchmarkDotNet and replicate the pattern for non async methods, ensuring that CancellationToken is passed through the runner pipeline.
Tech stack
csharp
Domain
testingdevtools
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C#
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75