Additional Notes
How would you explain a ‘Stop-The-World’ pause in JVM in an interview?
Track: Java
Topic: Performance Tuning
Focus: Stop-The-World Pauses
Java: Stop-The-World Pauses
Answer
It's when all application threads are paused for GC.
During 'Stop-The-World' pauses, the JVM halts all application threads to safely perform garbage collection. This is necessary to ensure the integrity of memory as objects are moved or cleaned up. For example, during a full GC, such a pause ensures that no application thread can modify objects while they are being relocated.
During 'Stop-The-World' pauses, the JVM halts all application threads to safely perform garbage collection. This is necessary to ensure the integrity of memory as objects are moved or cleaned up. For example, during a full GC, such a pause ensures that no application thread can modify objects while they are being relocated.
Topics: Java Performance Tuning Stop-The-World Pauses