如何阅读详细信息:GC输出? [英] How to read a verbose:GC output?
问题描述
您可以找到关于解释详细GC输出的教程,例如。 in:
查看 verbosegc输出教程 - Java 7 ,您可以看到 YoungGen空间分析:
UPDATE 03/27/2014: 收集时间(秒)实际上是显示GC何时发生的时间戳。收集时间被报告为 Times = user = 0.45 sys = 0.01,real = 0.14 secs]
。
< img src =https://i.stack.imgur.com/APocB.pngalt =在这里输入图片描述>
这里, 262208K-> 137900K(100428K)
表示GC之前的Java堆 - > GC之后的Java堆Java堆的大小)
。
OldGen空间分析:
70.222: [GC [PSYoungGen: 131072K->15437K(152896K)] 131072K->15509K(502464K), 0.0228420 secs] [Times: user=0.09 sys=0.01, real=0.02 secs]
You can find tutorials on interpreting verbose GC output eg. in:
Looking at verbosegc output tutorial - Java 7, you can see YoungGen space analysis:
UPDATE 03/27/2014: The "Collection time (secs)" is actually a Timestamp showing the when the GC occurred. The Collection times are reported as Times=user=0.45 sys=0.01, real=0.14 secs]
.
Here, the 262208K->137900K(100428K)
means Java Heap before GC
-> Java Heap after GC (Total Size of the Java Heap)
.
And, OldGen space analysis:
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