1.可参考MustGather: Performance, hang, or high CPU issues on AIX
https://www-304.ibm.com/support/docview.wss?uid=swg210526412.手动troubleshooting
(1)ps -mp pid-o THREAD
通过Ps-mp命令找到cp值比较高的线程,并手动的做一次javacore
(2)将CP值较高的TID转化为16进制
(3)在产生的javacore里去寻找native id为上述16进制数的线程