What are the limitations of ThreadSanitizer?

What are the limitations of ThreadSanitizer?

ThreadSanitizer is a powerful tool for detecting data races, but it has some limitations. For instance, it can introduce overhead, which may affect performance during testing. Additionally, it may not catch all types of concurrency issues, such as deadlocks or logical errors.

Can it detect all concurrency issues?

No, ThreadSanitizer primarily focuses on data races. It does not detect all concurrency issues like deadlocks or race conditions that don't involve shared data.

What kind of overhead does it introduce?

The overhead can vary, but generally, it can slow down the execution of your program significantly, sometimes by 2-10 times, depending on the complexity of the code being analyzed.

Is it suitable for production use?

ThreadSanitizer is mainly intended for debugging and testing environments. It's not recommended for production use due to the performance overhead it introduces.

Are there alternatives to ThreadSanitizer?

Yes, alternatives include tools like Helgrind, Intel Inspector, and other static analysis tools that can help identify concurrency issues.