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Update AV1825: Prefer Task.Run for CPU-intensive activities #377

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dennisdoomen merged 1 commit into from
Mar 29, 2026
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Update AV1825: Prefer Task.Run for CPU-intensive activities #377

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6 changes: 4 additions & 2 deletions _rules/1825.md
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Original file line number Diff line number Diff line change
@@ -1,7 +1,9 @@
---
rule_id: 1825
rule_category: performance
title: Prefer `Task.Run` or `Task.Factory.StartNew` for CPU-intensive activities
title: Prefer `Task.Run` for CPU-intensive activities
severity: 1
---
If you do need to execute a CPU bound operation, use `Task.Run` to offload the work to a thread from the Thread Pool. For long-running operations use `Task.Factory.StartNew` with `TaskCreationOptions.LongRunning` parameter to create a new thread. Remember that you have to marshal the result back to your main thread manually.
If you need to execute a CPU-bound operation, use `Task.Run` to offload the work to a thread from the Thread Pool. Remember that you have to marshal the result back to your main thread manually.

For long-running operations, use `Task.Factory.StartNew` with `TaskCreationOptions.LongRunning` to hint the runtime to use a dedicated thread instead of a thread pool thread.