總結幾個G1垃圾收集器重要調優參數

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

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