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ZGC - The Future of Low-Latency Garbage Collection Is Here

Java

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  • Recommended by 1 person: 1 in engineering communities.
  • Presented by Per Liden, Consulting Member of Technical Staff at Oracle
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Advanced. Deep dive for people who know the field.

18K views4 years ago1 recommendation

Systems programmingProgramming languagesJava and the JVMPerformance and optimizationMemory management

Per Liden explains the design, performance, and low-latency capabilities of the Z Garbage Collector in Java.

JavaOne is back! ➱ oracle.com/javaone The Z Garbage Collector (ZGC) is a scalable low-latency garbage collector. This session provides an overview of the design of ZGC, how it performs, and how to best use it. It also presents the ongoing work to make ZGC a generational garbage collector. Presented by Per Liden - Consulting Member of Technical Staff, Oracle ⎯⎯⎯⎯⎯⎯ More information ⎯⎯⎯⎯⎯⎯ ◦ Dev.java, The Destination for Java Developers ➱ dev.java/ ◦ Inside Java, News and views from members of the Java team at Oracle ➱ inside.java ◦ OpenJDK ➱ openjdk.java.net/ ◦ Oracle Java ➱ oracle.com/java/ Tags: #Java #OracleDevLive #Java18 #JDK18 #OpenJDK

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What people say. Recommended as a detailed explanation of ZGC's low-latency performance compared to other garbage collectors.

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u/Senikaein r/programming • Recommends

On “Beginners guide to Java Garbage Collector”

> Recent versions of JDKs provide G1GC as the default garbage collector, which also has a low pause time. No it does not, its pauses can go up to around 400ms which is at least two orders of magnitude off from "low": link to this video > The G1 collector is designed for applications that: > > Compact free space without lengthy GC-induced pause times. > > Need more predictable GC pause durations. > > Do not want to sacrifice throughput. What a bunch of nonsense. You either sacrifice latency or throughput, so which is it? For G1 the answer is latency. I can tell from the way this is written and the nonsensical statements like the above that the author is out of his depth here. Terrible advic…
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