Quick study sessions to strengthen memory and retain key concepts.
Why use Thread Dumps for diagnosing performance issues?
Thread Dumps provide a snapshot of all threads' states, helping diagnose deadlocks and performance bottlenecks. Thread Dumps capture…
View Card →How does ZGC minimize pause times?
ZGC minimizes pause times by using concurrent garbage collection and colored pointers. ZGC utilizes concurrent garbage collection and…
View Card →How does G1 Garbage Collector achieve its goals?
G1GC aims for predictable pause times by dividing the heap into regions and collecting them incrementally. The G1…
View Card →Compare Young and Old Generation in JVM Garbage Collection?
Young Generation is for short-lived objects; Old Generation is for long-lived objects. The Generational Garbage Collection model divides…
View Card →Why does Metaspace in JVM matter in this design?
Metaspace stores class metadata in JVM, replacing PermGen. Metaspace is a memory area in the JVM that stores…
View Card →How do static references cause memory leaks?
Static references can prevent objects from being garbage collected, causing memory leaks. Static references persist for the lifetime…
View Card →Why is a Heap Dump useful for diagnosing memory issues?
A Heap Dump captures a snapshot of the JVM's heap memory, useful for analyzing memory usage and identifying…
View Card →What triggers a java.lang.OutOfMemoryError in JVM?
It occurs when the JVM cannot allocate an object because it is out of heap memory. An OutOfMemoryError…
View Card →What are common indicators of a memory leak in Heap Dumps?
Unusually large collections or retained sizes. In a Heap Dump, large collections retaining unexpected objects, like a session…
View Card →How does G1GC achieve predictable pause times?
Uses a region-based approach for incremental collection. G1GC divides the heap into regions and prioritizes the collection of…
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