HotSpot Classic Garbage Collectors: Serial, ParNew, Parallel, CMS and Their Trade-offs
The JVM specification intentionally leaves garbage-collection details to each vendor and version, so HotSpot alone has evolved a dozen distinct collectors. This article reviews the first six "classic" algorithms—Serial, ParNew, Parallel Scavenge, Serial Old, Parallel Old and CMS—and explains why G1 was eventually introduced.
Classifyi ...
Posted on Sun, 11 Oct 2026 16:33:58 +0000 by jamescalvin