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nononi
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第二周第4题
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01jvm/GCLearning.md

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##SerialGC
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## SerialGC
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配置命令:<u>-XX:+UseSerialGC</u>
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<u>-XX:+UseParNewGC</u>改进版本的SerialGC(并行回收年轻代),可以配合CMS使用。
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##Parallel GC
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## Parallel GC
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配置命令:
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<u>-XX:+UseParallelGC
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通过作业1可以看出并行GC进行一次垃圾收集的时间要明显少于串行GC,在堆内存较大时能比串行GC条件下生成更多的对象,有更高的吞吐量。
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##CMS GC
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###Mostly Concurrent Mark and Sweep Garbage Collector
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## CMS GC
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### Mostly Concurrent Mark and Sweep Garbage Collector
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配置命令:<u> -XX:+UseConcMarkSweepGC</u>
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##G1 GC
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###Garbage-First
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## G1 GC
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### Garbage-First
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配置命令:<u> -XX:+UseG1GC -XX:MaxGCPauseMillis=50</u>
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