Compare and Swap Operation (CAS) - Performance Tests

When doing low-latency development; we have to approach it as a science; that means:

• Have a theory
• Run experiments
• Reach a conclusion
• Write a law

Sometimes that seems to work better; does not really work better in real life.

What are we testing?

Runs a performance test on concurrency testing various implementations; like:

• Synchronized
• EmulatedCAS using Synchronized
• Reentrant Lock
• AtomicInteger

Test Results

My Test Results (best first):

• AtomicInteger
• ReentrantLock
• Synchronized
• AtomicInteger (compareAndSet)