What's New with Garbage Collectors in JDK 15?
Track
Trends & Future
Date and time
-
Room
-
Duration
30'
Optimizing existing applications in terms of performance has always been a specific area of concern in the software development world. Since garbage collection algorithms are responsible for managing dynamic memory allocation and play a crucial role in the efficiency of enterprise applications written in Java, there are constant improvements of these underlying algorithms, the essential components of Java Virtual Machine (JVM) that are part of automatic memory management provided by its runtime. Throughout Java’s history, the most challenging aspect of this automated system has been concurrency – trying to achieve efficient reuse of unnecessary memory while the application is running, and therefore preserving the desired performance of a program. In the recent versions of JDK, apart from traditional garbage collectors, several new experimental GCs have been implemented and tested, including a scalable low-latency ZGC and low-pause-time Shenandoah GC. Available as experimental features and on some operating systems in previous JDK builds, ZGC and Shenandoah finally reached the production stage in JDK 15. This presentation explains the most important aspects of contemporary garbage collection algorithms, as well as their typical usage and expected performance across several JDKs in comparison with the traditional ones.
Lecture details
About speaker
Paula Pufek, author
Paula Pufek is a student at the Rochester Institute of Technology Croatia (RIT Croatia), where she studies Information Technology with a concentration in Web and Mobile Computing. She is interested in software development as well as software architecture, and currently, she is working on a research about Automatic Memory Management and Garbage Collection algorithms in Java, including new Parallel Full G1 GC, the Z GC, and Shenandoah GC. Her other interests are web application development and user interface design, and she attends software development conference as much as she can.
Branko Mihaljević, coauthor
Branko Mihaljević is an educator, consultant, manager, and entrepreneur, dealing with Java since 1996. After 12 years of teaching at UNIZG FER, where he received dipl. ing. (MS), DSM, mr. sc., and dr. sc. (PhD), a few years at Algebra and VERN' colleges, as well as seven years as a co-owner and CTO of a development company, he is currently a Senior Lecturer and Research Assistant at RIT Croatia, one of the global locations of Rochester Institute of Technology, and leading his software consulting company. He gained experience as a consultant, software architect, project manager, development lead, and researcher on various projects in the financial, telecom, traffic, public health, and satellite systems sectors. He is the author of numerous scientific and professional papers, conference presentations, and popular Java-related articles. He worked on many research and professional projects, as well as delivered various university courses and professional workshops, and authored many educational materials. He is the president of the Croatian Java User Association (HUJAK).
Dora Beronić, coauthor
Dora Beronic is a student at Rochester Institute of Technology Croatia (RIT Croatia), majoring in Information Technology with concentration on Web and Mobile Computing. She is interested in software architecture and optimizations as well as software development. She is currently working on a research about new concept of threads inside Java Virtual Machine (JVM) called Virtual Threads or Fibers used for enhancement of performance in java server-side applications.
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