Eclipse Memory Analyzer Eclipse内存分析器

Memory leaks happen, even in Java. Luckily, there are tools for that. The best tool I've used to fix these is the Eclipse Memory Analyzer. It takes a heap dump and lets you find the problem.

哪怕在Java中也可能发生内存泄漏。幸运的是,这儿有些工具来检查。我曾用过的最好的解决工具就是Eclipse Memory Analyzer。它可以获取堆内存信息来让你寻找问题所在。

There's a few ways to get a heap dump for a JVM process, but I use jmap:

又不少方式来从JVM进程中获取对内存信息,但是我选择jmap

$ jmap -dump:live,format=b,file=heapdump.hprof -F 8152
Attaching to process ID 8152, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 23.25-b01
Dumping heap to heapdump.hprof ...
... snip ...
Heap dump file created

Then you can open the heapdump.hprof file with the Memory Analyzer and see what's going on fast.

然后你就可以通过打开内存分析器打开heapdump.hprof文件,迅速查看发生了什么。

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