{"id":46771,"date":"2023-12-11T15:09:46","date_gmt":"2023-12-11T07:09:46","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=46771"},"modified":"2023-12-11T15:09:46","modified_gmt":"2023-12-11T07:09:46","slug":"%e8%af%b7%e4%bd%a0%e8%a7%a3%e9%87%8a%e4%b8%80%e4%b8%8b%ef%bc%8c%e9%80%9a%e5%b8%b8%e7%b3%bb%e7%bb%9fcpu%e6%af%94%e8%be%83%e9%ab%98%e6%98%af%e4%bb%80%e4%b9%88%e5%8e%9f%e5%9b%a0%ef%bc%9f-3","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/11\/%e8%af%b7%e4%bd%a0%e8%a7%a3%e9%87%8a%e4%b8%80%e4%b8%8b%ef%bc%8c%e9%80%9a%e5%b8%b8%e7%b3%bb%e7%bb%9fcpu%e6%af%94%e8%be%83%e9%ab%98%e6%98%af%e4%bb%80%e4%b9%88%e5%8e%9f%e5%9b%a0%ef%bc%9f-3\/","title":{"rendered":"\u8bf7\u4f60\u89e3\u91ca\u4e00\u4e0b\uff0c\u901a\u5e38\u7cfb\u7edfCPU\u6bd4\u8f83\u9ad8\u662f\u4ec0\u4e48\u539f\u56e0\uff1f"},"content":{"rendered":"

“`” \u8003\u5bdf\u70b9\uff1a\u5904\u7406\u673a<\/p>\n

1\u3001\u9996\u5148\u67e5\u770b\u662f\u54ea\u4e9b\u8fdb\u7a0b\u7684CPU\u5360\u7528\u7387\u6700\u9ad8\uff08\u5982\u4e0b\u53ef\u4ee5\u770b\u5230\u8be6\u7ec6\u7684\u8def\u5f84\uff09<\/p>\n

ps -aux –sort -pcpu | more<\/p>\n

<h1>\u5b9a\u4f4d\u6709\u95ee\u9898\u7684\u7ebf\u7a0b\u53ef\u4ee5\u7528\u5982\u4e0b\u547d\u4ee4<\/h1><\/p>\n

ps -mp pid -o THREAD,tid,time | more<\/p>\n

2\u3001\u67e5\u770bJAVA\u8fdb\u7a0b\u7684\u6bcf\u4e2a\u7ebf\u7a0b\u7684CPU\u5360\u7528\u7387<\/p>\n

ps -Lp 5798 cu | more # 5798\u662f\u67e5\u51fa\u6765\u8fdb\u7a0bPID<\/p>\n

3\u3001\u8ffd\u8e2a\u7ebf\u7a0b\uff0c\u67e5\u770b\u8d1f\u8f7d\u8fc7\u9ad8\u7684\u539f\u56e0\uff0c\u4f7f\u7528JDK\u4e0b\u7684\u4e00\u4e2a\u5de5\u5177<\/p>\n

jstack 5798 # 5798\u662fPID<\/p>\n

jstack -J-d64 -m 5798 # -j-d64\u6307\u5b9a64\u4e3a\u7cfb\u7edf<\/p>\n

jstack \u67e5\u51fa\u6765\u7684\u7ebf\u7a0bID\u662f16\u8fdb\u5236\uff0c\u53ef\u4ee5\u628a\u8f93\u51fa\u8ffd\u52a0\u5230\u6587\u4ef6\uff0c\u5bfc\u51fa\u7528\u8bb0\u4e8b\u672c\u6253\u5f00\uff0c\u518d\u6839\u636e\u7cfb\u7edf\u4e2d\u7684\u7ebf\u7a0bID\u53bb\u641c\u7d22\u67e5\u770b\u8be5ID\u7684\u7ebf\u7a0b\u8fd0\u884c\u5185\u5bb9\uff0c\u53ef\u4ee5\u548c\u5f00\u53d1\u4e00\u8d77\u6392\u67e5\u3002<\/p>\n

<pre><code> "“`
\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"

“`” \u8003\u5bdf\u70b9\uff1a\u5904\u7406\u673a 1\u3001\u9996\u5148\u67e5\u770b\u662f\u54ea\u4e9b\u8fdb\u7a0b\u7684CPU\u5360\u7528\u7387\u6700\u9ad8\uff08\u5982\u4e0b\u53ef\u4ee5\u770b\u5230\u8be6\u7ec6\u7684\u8def […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-46771","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/46771","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=46771"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/46771\/revisions"}],"predecessor-version":[{"id":46772,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/46771\/revisions\/46772"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=46771"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=46771"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=46771"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}