Featheast Lee 李羽东

1) Slow-running applications

2) Applications that degrade over tim

3) Slow memory leaks that gradually degrade performance

4) Huge memory leaks that crash the application server

5) Periodic CPU spikes and application freezes

6) Applications that behave significantly differently under a heavy load under normal usage patterns

7) Problems or anomalies that occur in production but cannot be reproduced in a test environment