Additional Notes
Why can two services with similar heap size perform very differently?
Track: Java
Topic: Performance Tuning
Focus: Garbage Collection Basics
Java: Garbage Collection Basics
Answer
Because one service may allocate many more temporary objects per request.
Steady-state heap size does not tell you how much work the garbage collector is doing. One service can churn through far more short-lived objects and pay a bigger GC and CPU tax even if both end up with similar live heap.
Steady-state heap size does not tell you how much work the garbage collector is doing. One service can churn through far more short-lived objects and pay a bigger GC and CPU tax even if both end up with similar live heap.
Topics: Garbage Collection Basics Java Performance Tuning