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排查Java高CPU占用原因

开篇在简书看到一篇公众号讲如何排查CPU问题，想了想在日常工作中也偶尔遇到这样的问题，所以在网上搜了搜该方面的文章，特意拷贝了一篇文章作日后排查参考。整体来说是按照三步走： 1、top命令发现占用cpu最多的进程PID； 2、ps命令查看该进程下占用cpu最多的线程tid并转换为16进制； ...

排查Java高CPU占用原因

top命令发现某个进程占用了100%的CPU 通过ps命令，进一步确定哪个进程出了问题再查看线程占用CPU的列表 # ps -mp PID -o THREAD,tid,time 找到占用CPU最高的线程，查看TID，将其转换为16进制格式 # printf "%x\n" TID 而后查看堆栈信息 ...

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更新时间 2022-07-27 12:29:07

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