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Overview
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This session explains how G1 garbage collection behaves and how its ergonomics affect production workloads. It uses GC logs and JFR recordings to guide performance tuning.
Syllabus
Intro
Agenda
Performance Problems
Too long requests
Post target
Joints
Logging
Data Analysis
Mixed Collections
Mix GC Count Target
Mix GC Threshold
To Space Exhausted
Mixed Collection
Junk Collection
Concurrent Marking
Adaptive Concurrent Cycle
Full Collection Analysis
Summary
Recap
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