1. 获取pid
ps -aux | grep java2. 查看堆中对象统计
jmap -histo [pid]3. jmap
jmap -heap [pid]4. dump剖析
jmap -dump:format=b,file=./j.dump [pid]
jhat -J-Xmx1024M ./j.dump ps -aux | grep javajmap -histo [pid]jmap -heap [pid]jmap -dump:format=b,file=./j.dump [pid]
jhat -J-Xmx1024M ./j.dump
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