What are the common performance issues with condition variables?

What are the common performance issues with condition variables?

Common issues include thread contention, missed signals, and improper use of condition variables leading to deadlocks.

How can I avoid thread contention when using condition variables?

To avoid thread contention, minimize the time spent holding the mutex and consider using more granular locking.

What are missed signals and how do they affect performance?

Missed signals occur when a thread waits on a condition variable but another thread signals before it starts waiting, leading to potential delays.

Can you give an example of improper use of condition variables?

Sure! An example is signaling a condition variable without holding the associated mutex, which can lead to race conditions.