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java dump文件怎么生成和分析

2025-04-03 22:04:37

推荐回答（1个）

回答1：

jmap是java自带的工具

1. 查看整个JVM内存状态

jmap -heap [pid]

2. 查看JVM堆中对象详细占用情况
jmap -histo [pid]

3. 导出整个JVM 中内存信息，可以利用其它工具打开dump文件分析，例如jdk自带的visualvm工具

jmap -dump:file=文件名.dump [pid]

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