总结几个G1垃圾收集器重要调优参数

大致按重要性排序

• -XX:+UseG1GC
• -Xmx< nG >
• -Xms< nG >
• -XX:MaxGCPauseMillis=< ms >
• -XX:InitiatingHeapOccupancyPercent=< % >
• -XX:+PrintGCDetails
• -XX:+PrintAdaptiveSizePolicy
• -XX:G1HeapRegionSize
• -XX:+PrintReferenceGC
• -XX:+ParallelRefProcEnabled
• -XX:ParallelGCThreads=n
• -XX:ConcGCThreads=n
• -XX:G1MixedGCCountTarget=n

#

推荐几篇Monica文
Tips for Tuning the Garbage First Garbage Collector
Getting Started with the G1 Garbage Collector
Garbage First Garbage Collector Tuning
Silicon Valley Java Performance Meetup