ZGC-Jfokus-2018.pdfThe Z Garbage Collector Low Lat

文件名称: ZGC-Jfokus-2018.pdf

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详细说明：The Z Garbage Collector Low Latency GC for OpenJDK Per Lidén & Stefan Karlsson HotSpot Garbage Collection Team Jfokus VM Tech Summit 2018genda 1>What is ZGC? 2> Some Numbers 3>Under The Hood 4> Going Forward 5>How To Get Started lava Copyright C 2018, Oracle and/ar its affiliates. All rights reserved. I genda 1>What is ZGC? 2Some Numbers 3 Under The hood Going Forward 5 HoW To Get started lava Copyright C 2018, Oracle and/ar its affiliates. All rights reserved. I A Scalable low latency garbage collector lava Copyright C 2018, Oracle and/ar its affiliates. All rights reserved. I Goals TB Multi-terabyte heaps 10mn5 Max GC pause time Lay the foundation for Max application hIE future GC features 15% throughput reduction lava ORACLE Copyright C 2018, Oracle and/ar its affiliates. All rights reserved. I GC pause times do not increase with heap or live-set size lava Copyright C 2018, Oracle and/ar its affiliates. All rights reserved. I At a glance 人 New garbage collector ● Concurrent Load barriers √ Marking Colored pointers V Relocation/Compaction V Relocation set selection Single generation √ Reference Processing Partial compaction √ JNI WeakRefs Cleaning ° Region- based String Table/ Symbol Table Cleaning mmediate memory reuse Class Unloading e NUMA-aware lava ORACLE Copyright C 2018, Oracle and/ar its affiliates. All rights reserved. I Current status Design and implementation approaching mature and stable Main focus on Linux/x86 64 Other platforms can be added if there's enough demand Performance looks very good Both in terms of latency and throughput lava ORACLE Copyright C 2018, Oracle and/ar its affiliates. All rights reserved. I genda What is ZGC? 2>Some numbers 3 Under The hood Going Forward 5 HoW To Get started lava Copyright C 2018, Oracle and/ar its affiliates. All rights reserved. I

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