What are the common performance issues in thread-safe collections?

What are the common performance issues in thread-safe collections?

Common performance issues in thread-safe collections include contention, overhead from locking, and reduced throughput.

Can you explain contention and how it affects performance?

Contention occurs when multiple threads try to access the same resource simultaneously, leading to delays.

What strategies can I use to minimize contention?

You can minimize contention by using finer-grained locks, lock-free algorithms, or partitioning data.

Are there specific collections that are better for performance?

Yes, collections like ConcurrentHashMap or CopyOnWriteArrayList are designed for better performance in multi-threaded scenarios.