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Mike Chen's Internet Architecture
Mike Chen's Internet Architecture
Dec 23, 2022 · Fundamentals

Four JVM Garbage Collection Algorithms Explained

This article introduces the four main JVM garbage collection algorithms—Mark‑Sweep, Copying, Mark‑Compact, and Generational collection—explaining their mechanisms, suitable scenarios, advantages, and drawbacks, and summarizing how they are applied to young and old generations in modern Java virtual machines.

CopyingGarbage CollectionGenerational GC
0 likes · 7 min read
Four JVM Garbage Collection Algorithms Explained
OPPO Kernel Craftsman
OPPO Kernel Craftsman
Jan 21, 2022 · Mobile Development

Understanding Android ART CC Collector: GC Challenges, Implementation Principles and Performance Optimization

The article thoroughly explains Android ART’s Concurrent Copying (CC) garbage collector—its terminology, correctness and progress requirements, engineering challenges, classic and Android‑specific algorithms, region‑based design with bump‑pointer allocation, performance benefits such as 32% lower heap usage and sub‑millisecond pauses, and its trade‑offs including doubled reserved heap space and migration overhead.

Android ARTCC CollectorConcurrent GC
0 likes · 14 min read
Understanding Android ART CC Collector: GC Challenges, Implementation Principles and Performance Optimization