【十一】不要问我JVM ！—— GC日志

柔情只为你懂 2022-08-29 05:47 219阅读 0赞

通过阅读GC日志，我们可以了解Java虛拟机内存分配与回收策略。

> # 一、GC日志命令 #

*  `-XX:+PrintGC` 输出GC日志（这个只会显示总的GC堆的变化）。类似: `-verbose:gc`
 *  `-XX:+PrintGCDetails` 输出GC的详细日志
 *  `-XX:+PrintGCTimeStamps` 输出GC的时间戳(以基准时间的形式)
 *  `-XX:+PrintGCDateStamp` 输出GC的时间戳(以日期的形式，如：2020-08-13T22:17:35.354+0800
 *  `-XX:+PrintHeapAtGC` 在进行GC的前后打印出堆的信息
 *  `-Xloggc:./logs/gc.log` 日志文件的输出路径

> # 二、GC日志分析 #

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> # 三、GC日志分析工具 #

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