Answer
- Excess allocations
- Boxing
- Hidden lambda captures
- LINQ in hot paths
- Unnecessary locks
- Sync-over-async
- Exceptions for flow control
Quick Answer
Key C# performance traps: excessive allocations in hot paths, boxing value types, unintended lambda closures capturing references, LINQ chains that re-enumerate, lock contention on shared state, sync-over-async (blocking async code with .Result), and using exceptions for normal control flow.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ