Inside Java is a podcast for Java Developers brought to you directly from the people that make Java at Oracle. We'll discuss the language, the JVM, OpenJDK, platform security, innovation projects like Loom and Panama, and everything in between!
Curated by: Java (52 videos)
G1 is Java's default garbage collector in most environments, and its throughput has been considerably improved in JDK 26 by streamlining its write barriers. This conversation explores the background of that change and dives deep into regions, write barriers, concurrent marking, card tables, and how all that impacts throughput before eventually getting to the improvements made in Java 26, which lay further groundwork to G1 becoming the one and only default collector in _all_ environments. In this "Ask the Architect" episode of the Inside Java Podcast, recorded during JavaOne 2026, Nicolai Parlog talks to Stefan Johansson, HotSpot Garbage Collection engineer at Oracle. JEP 522: https://openjdk.org/jeps/522 ~~~ Chapters ~~~ 0:00 Intro 0:45 Conversation with Stefan 16:40 Outro Make sure to check https://inside.java/podcast for more episodes and the https://www.youtube.com/playlist?list=PLX8CzqL3ArzUMVSzm-z_-if8BIB55EGl4 playlist. Tags: #Java #OpenJDK #Performance