{"id":97,"date":"2024-05-30T18:40:26","date_gmt":"2024-05-30T10:40:26","guid":{"rendered":"http:\/\/zhaoyanqi.cn\/?p=97"},"modified":"2024-05-30T18:40:28","modified_gmt":"2024-05-30T10:40:28","slug":"%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e4%b8%8a","status":"publish","type":"post","link":"https:\/\/zhaoyanqi.cn\/?p=97","title":{"rendered":"\u8fdb\u7a0b\u7ba1\u7406\u4e0a"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"H7u6e\">\u6e29\u6545\u77e5\u65b0\uff1a<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"oebxS\">\u591a\u9053\u6280\u672f\uff1a<\/h3>\n\n\n\n<p id=\"u15d81083\">1.\u4ea7\u751f\u80cc\u666f\uff1a\u9488\u5bf9\u5355\u6838\uff0c\u5b9e\u73b0\u5e76\u53d1<\/p>\n\n\n\n<p id=\"ud353a041\">ps\uff1a<\/p>\n\n\n\n<p id=\"u56f93fb7\">\u73b0\u5728\u7684\u4e3b\u673a\u4e00\u822c\u662f\u591a\u6838\uff0c\u90a3\u4e48\u6bcf\u4e2a\u6838\u90fd\u4f1a\u5229\u7528\u591a\u9053\u6280\u672f<\/p>\n\n\n\n<p 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id=\"KfpsZ\" class=\"wp-block-code\"><code>\n&#91;root@localhost yum.repos.d]# yum install nginx -y\n&#91;root@localhost yum.repos.d]# \n&#91;root@localhost yum.repos.d]# systemctl start nginx\n&#91;root@localhost yum.repos.d]# ps aux |grep nginx\n&#91;root@rockylinux test]# ps -elf |grep nginx\n1 S root       52670       1  0  80   0 -  2527 sigsus 23:04 ?        00:00:00 nginx: master process \/usr\/sbin\/nginx\n5 S nginx      52671   52670  0  80   0 -  3485 ep_pol 23:04 ?        00:00:00 nginx: worker process\n5 S nginx      52672   52670  0  80   0 -  3485 ep_pol 23:04 ?        00:00:00 nginx: worker process\n0 R root       52674    1556  0  80   0 - 55545 -      23:04 pts\/0    00:00:00 grep --color=auto nginx<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Fh5ay\">\u50a8\u5907\u77e5\u8bc6\uff1a<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"qshij\">\u540c\u6b65\u4e0e\u5f02\u6b65\uff1a\u4efb\u52a1\u7684\u542f\u52a8\/\u8c03\u7528\u65b9\u5f0f<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"D36yR\">\u540c\u6b65\uff1a<\/h4>\n\n\n\n<p id=\"u9b2e4da2\">\u591a\u4e2a\u4efb\u52a1\u662f\u540c\u6b65\u6267\u884c\u7684\u6307\u7684\u662f\u542f\u52a8\u4e00\u4e2a\u4efb\u52a1\u4e4b\u540e\uff0c\u5fc5\u987b\u5728\u539f\u5730\u7b49\u5f85\u8be5\u4efb\u52a1\u8fd0\u884c\u5b8c\u6bd5\u4e4b\u540e\uff0c\u624d\u80fd\u542f\u52a8\u4e0b\u4e00\u4e2a\u4efb\u52a1\u5e76\u4e14\u8fd0\u884c<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"E06Hn\">\u5f02\u6b65\uff1a<\/h4>\n\n\n\n<p id=\"u778c721a\">\u63d0\u4ea4\u5b8c\u4e00\u4e2a\u4efb\u52a1\u4e4b\u540e\uff0c\u4e0d\u7528\u5728\u539f\u5730\u7b49\u5f85\u8be5\u4efb\u52a1\u8fd0\u884c\u5b8c\u6bd5<\/p>\n\n\n\n<p id=\"u0964f175\">\u5c31\u80fd\u7acb\u5373\u63d0\u4ea4\u4e0b\u4e00\u4e2a\u4efb\u52a1\u6267\u884c<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"ZTQv6\">\u8865\u5145&amp;\u7b26\u53f7\uff1a<\/h4>\n\n\n\n<p id=\"u1a4a8673\">&amp;\u4f5c\u7528\uff1a\u5728bash\u547d\u4ee4\u540e\u52a0&amp;\u7b26\u53f7\uff0c\u53ef\u4ee5\u628a\u8be5\u547d\u4ee4\u653e\u5230\u540e\u53f0\u8fd0\u884c<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"akcnS\">\u5e76\u53d1\/\u5e76\u884c \u4e32\u884c\uff1a\u6307\u7684\u662f\u4efb\u52a1\u7ed9\u4eba\u5c55\u73b0\u51fa\u7684\u8fd0\u884c\u7684\u6548\u679c<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"calIP\">\u5e76\u53d1\/\u5e76\u884c\uff1a\u591a\u4e2a\u4efb\u52a1\u662f\u201d\u540c\u65f6\u201c\u8fd0\u884c\u7684<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"bKsbA\">\u4e32\u884c\uff1a\u4e00\u4e2a\u4efb\u52a1\u8fd0\u884c\u5b8c\u6bd5\uff0c\u624d\u80fd\u8fd0\u884c\u4e0b\u4e00\u4e2a<\/h4>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"REYCk\">\u963b\u585e\u4e0e\u975e\u963b\u585e\uff1a\u4efb\u52a1\u5728\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u7684\u8fd0\u884c\u72b6\u6001<\/h3>\n\n\n\n<p id=\"u3c1d2db7\">\u4f1a\u5f15\u8d77\u963b\u585e\u7684\u4e8b\u9879\uff1a<\/p>\n\n\n\n<p id=\"u2f6dc9b2\">1\u3001\u786c\u76d8io<\/p>\n\n\n\n<p id=\"u00a1ceec\">2\u3001\u7f51\u7edcio<\/p>\n\n\n\n<p id=\"u0ac69099\">3\u3001sleep<\/p>\n\n\n\n<p id=\"u1198a3e3\">4\u3001read\u547d\u4ee4<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"exlgw\">\u4e00\u3001\u8fdb\u7a0b\u7684\u7ed3\u6784\uff1a\u6811\u5f62\u7ed3\u6784<\/h2>\n\n\n\n<p id=\"u148bdadd\">0\u53f7\uff1a\u6574\u4e2a\u7cfb\u7edf\u7684\u7956\u5b97\u8fdb\u7a0b<\/p>\n\n\n\n<p id=\"ucffa1791\">0\u53f7\u8fdb\u7a0b\u4f1a\u4ea7\u751f\u4e24\u4e2a\u8fdb\u7a0b1\u53f7\u548c2\u53f7<\/p>\n\n\n\n<p id=\"u76653e12\">1\u53f7\uff1a\u662f\u6240\u6709\u7528\u6237\u6001\u8fdb\u7a0b\u7684\u7956\u5b97<\/p>\n\n\n\n<p id=\"u06445e6a\">2\u53f7\uff1a\u662f\u6240\u6709\u5185\u6838\u53f0\u8fdb\u7a0b\u7684\u7956\u5b97<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"WhJtp\">\u4e8c\u3001\u8fdb\u7a0b\u7684\u72b6\u6001<\/h2>\n\n\n\n<p id=\"u51c24195\">\u5206\u4e3a\u4e24\u5927\u7c7b\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"evRRM\">\u6d3b\u7740\u7684<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"HpfEk\">1\u3001\u8fd0\u884c\u7740\u7684&#8212;&#8212;-\u300bR<\/h4>\n\n\n\n<p id=\"u77b4bd6c\">\u6b63\u5728\u6267\u884c\uff1a\u624b\u91cc\u62ff\u7740cpu\u6b63\u5728\u8fd0\u884c<\/p>\n\n\n\n<p id=\"u83c6ef55\">\u5c31\u7eea\uff08\u968f\u65f6\u53ef\u4ee5\u6295\u5165\u8fd0\u884c\uff09\uff1a\u6b63\u5728\u7b49\u5f85\u64cd\u4f5c\u7cfb\u7edf\u5206\u914dcpu\uff0c\u4e00\u65e6\u5206\u914d\u5230\uff0c\u5c31\u53ef\u4ee5\u7acb\u5373\u6295\u5165\u8fd0\u884c<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"rV1ZX\">2\u3001\u963b\u585e\u7684&#8212;-\u300bS\u6216D<\/h4>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"n3jes\">S\uff1a\u53ef\u4e2d\u65ad\u7684\u7761\u7720<\/h5>\n\n\n\n<p id=\"u8a4e2591\">\u53ef\u4ee5\u7528\u4f8b\u5982ctrl+c, kill -9 pid\u53f7\u547d\u4ee4\u6765\u7ec8\u6b62<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"JhrJ3\">D: \u4e0d\u53ef\u4e2d\u65ad\u7761\u7720\uff08\u56e0\u4e3a\u5b58\u50a8\u8bbe\u5907\u592a\u5fd9\u4e86\u54cd\u5e94\u4e0d\u8fc7\u6765\u4e86\uff09<\/h5>\n\n\n\n<p id=\"u7b5298c4\">\u4e0d\u53ef\u4ee5\u88ab\u4e2d\u6b62\uff08linux\u7cfb\u7edf\u4e3a\u4e86\u9632\u6b62\u6570\u636e\u4e22\u5931\u7684\u4e00\u79cd\u4fdd\u62a4\u673a\u5236\uff09<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"Otzje\">T\uff1a\u6682\u505c<\/h5>\n\n\n\n<p id=\"u56737612\">kill -SIGSTOP pid\u53f7 #\u8ba9\u7a0b\u5e8f\u8fdb\u53bbT\u72b6\u6001<\/p>\n\n\n\n<p id=\"u8ef6d0fa\">kill -SIGCONT pid\u53f7 #\u7ed3\u675fT\u72b6\u6001<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"b22xi\">\u6b7b\u4e86\u7684<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"rJHGz\">1\u3001\u50f5\u5c38\u8fdb\u7a0b&#8212;&#8211;\u300bZ<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u50f5\u5c38\u8fdb\u7a0b\u662f\u64cd\u4f5c\u7cfb\u7edf\u7684\u4e00\u79cd\u4f18\u5316\u673a\u5236\u3002<\/li>\n\n\n\n<li>\u4e00\u4e2a\u8fdb\u7a0b\u6b7b\u6389\u4e4b\u540e\uff0c\u4f1a\u628a\u5176\u5360\u7528\u7684cpu\u3001\u5185\u5b58\u8d44\u6e90\u90fd\u91ca\u653e\u6389\uff0c\u4f46\u662f\u4f1a\u4fdd\u7559\u8be5\u8fdb\u7a0b\u7684\u72b6\u6001\u4fe1\u606f\uff0c\u4f8b\u5982\uff1apid\u53f7\u3001\u5b58\u5728\u8fc7\u7684\u4e00\u4e9b\u8fd0\u884c\u4fe1\u606f\u3002<\/li>\n\n\n\n<li>\u8fd9\u4e9b\u4fdd\u7559\u4e0b\u6765\u7684\u4fe1\u606f\u90fd\u662f\u64cd\u4f5c\u7cfb\u7edf\u7ed9\u7236\u8fdb\u7a0b\u51c6\u5907\u7684\u3002<\/li>\n\n\n\n<li>\u6bcf\u4e2a\u8fdb\u7a0b\u6b7b\u6389\u4e4b\u524d\u90fd\u4f1a\u8fdb\u5165\u50f5\u5c38\u8fdb\u7a0b\u7684\u72b6\u6001<\/li>\n\n\n\n<li>\u50f5\u5c38\u8fdb\u7a0b\u901a\u5e38\u7531\u7236\u8fdb\u7a0b\u6765\u56de\u6536<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"eDdi7\">2\u3001\u9000\u51fa\u7684\u8fdb\u7a0b&#8212;\u300bX\u51e0\u4e4e\u770b\u4e0d\u5230<\/h4>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"Aevbi\">\u72b6\u6001\u540e\u540e\u9762\u8ddf\u7684\u72b6\u6001\u7b26\u53f7\uff1a<\/h3>\n\n\n\n<p id=\"uef2ddf13\">+\u53f7\uff1a\u524d\u53f0\u8fd0\u884c\u7684\u8fdb\u7a0b<\/p>\n\n\n\n<p id=\"u486f8ec6\">s\uff1a\u8868\u793a\u8be5\u8fdb\u7a0b\u662f\u4f1a\u8bdd\uff08session\uff09\u7684\u9886\u5bfc\/\u9886\u5bfc\u8fdb\u7a0b\uff0c\u7528\u6765\u63a5\u6536\u7528\u6237\u8bf7\u6c42\uff0c\u7136\u540e\u81ea\u5df1\u4e0d\u5e72\u7ed9\u513f\u5b50\u8fdb\u7a0b\u53bb\u5e72<\/p>\n\n\n\n<p id=\"u781abcfd\">l\uff1a\u5f53\u524d\u8fdb\u7a0b\u662f\u591a\u7ebf\u7a0b\u6a21\u5f0f<\/p>\n\n\n\n<p id=\"u5e117c09\">&lt;: \u4f4e\u4f18\u5148\u7ea7\uff08nice\u503c\uff09\u7684\u8fdb\u7a0b<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"rhnTk\">\u4e09\u3001ps aux\u547d\u4ee4<\/h2>\n\n\n\n<p id=\"u46601698\">-a #\u663e\u793a\u4e00\u4e2a\u7ec8\u7aef\u7684\u6240\u6709\u8fdb\u7a0b<\/p>\n\n\n\n<p id=\"u823ba257\">-u #\u9009\u62e9\u6709\u6548\u7684\u7528\u6237id\u6216\u8005\u662f\u7528\u6237\u540d<\/p>\n\n\n\n<p id=\"u8c68b38a\">-x #\u663e\u793a\u6ca1\u6709\u63a7\u5236\u7ec8\u7aef\u7684\u8fdb\u7a0b\uff0c\u540c\u65f6\u663e\u793a\u5404\u4e2a\u547d\u4ee4\u7684\u5177\u4f53\u8def\u5f84\u3002<\/p>\n\n\n\n<pre id=\"ND0bs\" class=\"wp-block-code\"><code>&#91;root@localhost ~]# ps aux |head -5\nUSER        PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot          1  0.0  0.3 128400  7104 ?        Ss   8\u670812   0:05 \/usr\/lib\/systemd\/systemd --switched-root --system --deserialize 22\nroot          2  0.0  0.0      0     0 ?        S    8\u670812   0:00 &#91;kthreadd]\nroot          4  0.0  0.0      0     0 ?        S&lt;   8\u670812   0:00 &#91;kworker\/0:0H]\nroot          5  0.0  0.0      0     0 ?        S    8\u670812   0:01 &#91;kworker\/u256:0]<\/code><\/pre>\n\n\n\n<p id=\"u168f9c6f\">USER: \u8fd0\u884c\u8fdb\u7a0b\u7684\u7528\u6237<\/p>\n\n\n\n<p id=\"ue1d252db\">PID\uff1a \u8fdb\u7a0bID<\/p>\n\n\n\n<p id=\"u291bb7f5\">%CPU: CPU\u5360\u7528\u7387<\/p>\n\n\n\n<p id=\"u7c9bfee7\">%MEM: \u5185\u5b58\u5360\u7528\u7387\uff0c\u6307\u7684\u662f\u5b9e\u9645\u5185\u5b58RSS\u5360\u7528\u7387<\/p>\n\n\n\n<p id=\"ud2788bef\">VSZ\uff1a \u5360\u7528\u865a\u62df\u5185\u5b58\uff0c\u5355\u4f4d\uff1aKB\uff08killo Bytes\uff09<\/p>\n\n\n\n<p id=\"uc196569f\">VSZ\u662f\u6307\u5df2\u5206\u914d\u7684\u7ebf\u6027\u7a7a\u95f4\u5927\u5c0f\uff0c\u8fd9\u4e2a\u5927\u5c0f\u901a\u5e38\u5e76\u4e0d\u7b49\u4e8e\u7a0b\u5e8f\u5b9e\u9645\u7528\u5230\u7684\u5185\u5b58\u5927\u5c0f\uff0c\u4ea7\u751f\u8fd9\u4e2a\u7684\u53ef\u80fd\u6027\u5f88\u591a<\/p>\n\n\n\n<p id=\"u150c27a5\">\u6bd4\u5982\u5185\u5b58\u6620\u5c04\uff0c\u5171\u4eab\u7684\u52a8\u6001\u5e93\uff0c\u6216\u8005\u5411\u7cfb\u7edf\u7533\u8bf7\u4e86\u66f4\u591a\u7684\u5806\uff0c\u90fd\u4f1a\u6269\u5c55\u7ebf\u6027\u7a7a\u95f4\u5927\u5c0f\u3002<\/p>\n\n\n\n<p id=\"ub2603c95\">RSS: \u5360\u7528\u5b9e\u9645\u5185\u5b58\uff0c\u5355\u4f4d\uff1aKB\uff08killo Bytes\uff09<\/p>\n\n\n\n<p id=\"ua6d46ea2\">RSZ\u662fResident Set Size\uff0c\u5e38\u9a7b\u5185\u5b58\u5927\u5c0f\uff0c\u5373\u8fdb\u7a0b\u5b9e\u9645\u5360\u7528\u7684\u7269\u7406\u5185\u5b58\u5927\u5c0f<\/p>\n\n\n\n<p id=\"u04df30c6\">TTY\uff1a \u8fdb\u7a0b\u8fd0\u884c\u7684\u7ec8\u7aef<\/p>\n\n\n\n<p id=\"u220502e6\">STAT\uff1a \u8fdb\u7a0b\u72b6\u6001 man ps (\/STATE)<\/p>\n\n\n\n<p id=\"u807e8a46\">R \u8fd0\u884c<\/p>\n\n\n\n<p id=\"u2633a354\">S \u53ef\u4e2d\u65ad\u7761\u7720 Sleep\uff0c\u5373\u5728\u7761\u7720\u7684\u8fc7\u7a0b\u4e2d\u53ef\u4ee5\u63a5\u6536\u4fe1\u53f7\u5524\u9192=\u300b\u6267\u884c\u7684IO\u64cd\u4f5c\u53ef\u4ee5\u5f97\u5230\u786c\u4ef6\u8bbe\u5907\u7684\u54cd\u5e94<\/p>\n\n\n\n<p id=\"uab424fdf\">D \u4e0d\u53ef\u4e2d\u65ad\u7761\u7720\uff0c\u5373\u5728\u7761\u7720\u7684\u8fc7\u7a0b\u4e2d\u4e0d\u53ef\u4ee5\u63a5\u6536\u4fe1\u53f7\u5524\u9192=\u300b\u6267\u884c\u7684IO\u64cd\u4f5c\u5f97\u4e0d\u5230\u786c\u4ef6\u8bbe\u5907\u7684\u54cd\u5e94<\/p>\n\n\n\n<p id=\"u73951ba3\">T \u505c\u6b62\u7684\u8fdb\u7a0b<\/p>\n\n\n\n<p id=\"ubcf7bea2\">Z \u50f5\u5c38\u8fdb\u7a0b<\/p>\n\n\n\n<p id=\"uc440047d\">X \u6b7b\u6389\u7684\u8fdb\u7a0b(\u51e0\u4e4e\u770b\u4e0d\u89c1\uff0c\u56e0\u4e3a\u6b7b\u4e86\u5c31\u7acb\u5373\u56de\u6536\u4e86)<\/p>\n\n\n\n<p id=\"ueec145f6\">&lt; \u6807\u6ce8\u4e86&lt;\u5c0f\u4e8e\u53f7\u4ee3\u8868\u4f18\u5148\u7ea7\u8f83\u9ad8\u7684\u8fdb\u7a0b<\/p>\n\n\n\n<p id=\"ua160e3b2\">N N\u4ee3\u8868\u4f18\u5148\u7ea7\u8f83\u4f4e\u7684\u8fdb\u7a0b<\/p>\n\n\n\n<p id=\"ud7084045\">s \u8be5\u8fdb\u7a0b\u5305\u542b\u5b50\u8fdb\u7a0b\uff0c\u8be5\u8fdb\u7a0b\u81ea\u5df1\u662f\u6574\u4e2a\u4f1a\u8bdd\u7684\u9886\u5bfc\u8005<\/p>\n\n\n\n<p id=\"u24d0c8f0\">+ +\u8868\u793a\u662f\u524d\u53f0\u7684\u8fdb\u7a0b\u7ec4<\/p>\n\n\n\n<p id=\"uc6a8978f\">l \u5c0f\u5199\u5b57\u6bcdl\uff0c\u4ee3\u8868\u4ee5\u7ebf\u7a0b\u7684\u65b9\u5f0f\u8fd0\u884c\uff0c\u5373\u591a\u7ebf\u7a0b<\/p>\n\n\n\n<p id=\"u0a11602c\">| \u7ba1\u9053\u7b26\u53f7\u4ee3\u8868\u591a\u8fdb\u7a0b<\/p>\n\n\n\n<p id=\"u0a18719f\">START: \u8fdb\u7a0b\u7684\u542f\u52a8\u65f6\u95f4<\/p>\n\n\n\n<p id=\"u571a1bfd\">TIME\uff1a \u8fdb\u7a0b\u5360\u7528CPU\u7684\u603b\u65f6\u95f4<\/p>\n\n\n\n<p id=\"uc8eddc98\">COMMAND\uff1a \u8fdb\u7a0b\u6587\u4ef6\uff0c\u8fdb\u7a0b\u540d<\/p>\n\n\n\n<p id=\"udc1352cc\">\u5e26[ ]\u53f7\u7684\u4ee3\u8868\u5185\u6838\u6001\u8fdb\u7a0b<\/p>\n\n\n\n<p id=\"u8763108d\">\u4e0d\u5e26[ ]\u53f7\u7684\u4ee3\u8868\u7528\u6237\u6001\u8fdb\u7a0b<\/p>\n\n\n\n<p id=\"u5c2311b4\">\u8865\u5145Centos9\u4e2d\u8fd8\u6709\u4e00\u4e2a\u5927\u5199\u5b57\u6bcdI\u7684\u8fdb\u7a0b\u72b6\u6001<\/p>\n\n\n\n<p id=\"u0fdcbb55\">\u5927\u5199\u5b57\u6bcd&#8221;I&#8221;\u4ee3\u8868\u7684\u8fdb\u7a0b\u72b6\u6001\u662f&#8221;Idle kernel thread&#8221;\uff0c\u8fd9\u610f\u5473\u7740\u8be5\u8fdb\u7a0b\u662f\u4e00\u4e2a\u7a7a\u95f2\u7684\u5185\u6838\u7ebf\u7a0b\uff0c\u4e0d\u662f\u7528\u6237\u6a21\u5f0f\u4e0b\u7684\u7a7a\u95f2\u8fdb\u7a0b\u3002\u8fd9\u4e2a\u72b6\u6001\u901a\u5e38\u53ea\u5e94\u7528\u4e8e\u5185\u6838\u7ebf\u7a0b\uff0c\u7528\u6237\u8fdb\u7a0b\u901a\u5e38\u4e0d\u4f1a\u6709\u8fd9\u4e2a\u72b6\u6001\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"pewEo\">\u56db\u3001top\u547d\u4ee4<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"wbsb0\">\u547d\u4ee4\u57fa\u672c\u7528\u6cd5<\/h3>\n\n\n\n<pre id=\"ncExg\" class=\"wp-block-code\"><code>&#91;root@localhost ~]# top\n&#91;root@localhost ~]# top -d 1  # 1\u79d2\u5237\u65b0\u4e00\u6b21\n&#91;root@localhost ~]# top -d 1 -p \u8fdb\u7a0b\u7684pid\n&#91;root@localhost ~]# top -d 1 -p `pgrep nginx | head -1`\n&#91;root@localhost ~]# top -d 1 -p `pgrep sshd | head -1`,33  # \u67e5\u770bsshd\u4ee5\u53capid\u4e3a33\u7684\u8fdb\u7a0b\n&#91;root@localhost ~]# top -d 1 -u nginx  # \u67e5\u770b\u6307\u5b9a\u7528\u6237\u8fdb\u7a0b\n&#91;root@localhost ~]# top -b -n 2 &gt; top.txt  # \u5c062\u6b21top\u4fe1\u606f\u5199\u5165\u5230\u6587\u4ef6<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/zhaoyanqi.cn\/wp-content\/uploads\/2024\/05\/image-4.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"525\" data-original=\"https:\/\/zhaoyanqi.cn\/wp-content\/uploads\/2024\/05\/image-4.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-98\"  sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"olua9\">top\u547d\u4ee4\u7ed3\u679c\u89e3\u6790<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"mdtkD\">load average\u5e73\u5747\u8d1f\u8f7d\uff08\u8d1f\u8f7d\u6307\u7684\u662f\u51e0\u4e2a\u6d3b\u8dc3\u7684\u6d3b\u8981\u5e72\uff09\uff1a<\/h4>\n\n\n\n<p id=\"uea004ed7\">\u5728\u4e00\u6bb5\u65f6\u95f4\u5185\uff0c\u5904\u4e8e<strong>R\u72b6\u6001\u7684\u8fdb\u7a0b\u6570+\u4e0d\u53ef\u4e2d\u65adD\u7761\u7720\u7684\u8fdb\u7a0b\u6570\u3002<\/strong>\u5e73\u5747\u8d1f\u8f7d\u662f\u7528\u6765\u8981\u8861\u91cf\u7cfb\u7edf\u7684\u7e41\u5fd9\u7a0b\u5ea6<\/p>\n\n\n\n<p id=\"u5dfb09d3\">4\u4e2acpu\uff1a<\/p>\n\n\n\n<p id=\"u6d038732\">\u5e73\u5747\u8d1f\u8f7d\u4e3a3\uff0c\u4ee3\u6709\u4e2a3\u4e2a\u6d3b\u8dc3\u8fdb\u7a0b\uff0c&#8212;\u300b\u4f4e\u8d1f\u8f7d<\/p>\n\n\n\n<p id=\"udba4636c\">\u5e73\u5747\u8d1f\u8f7d\u4e3a4\uff0c\u4ee3\u6709\u4e2a4\u4e2a\u6d3b\u8dc3\u8fdb\u7a0b\uff0c&#8212;\u300b\u6ee1\u8d1f\u8f7d<\/p>\n\n\n\n<p id=\"ud42cdb70\">\u5e73\u5747\u8d1f\u8f7d&gt;4\uff0c &#8212;\u300b\u8d85\u8d1f\u8f7d<\/p>\n\n\n\n<p id=\"ue3948fcc\">cpu\u7684\u5229\u7528\u7387\uff1a\u53cd\u5e94\u7684\u662fcpu\u7684\u4f7f\u7528\u60c5\u51b5<\/p>\n\n\n\n<p id=\"u6ae4f704\">\u7b2c\u4e00\u90e8\u5206\uff1a\u7cfb\u7edf\u6574\u4f53\u7edf\u8ba1\u4fe1\u606f<\/p>\n\n\n\n<p id=\"u055df1c1\">up\u5de6\u8fb9\u7684\u4ee3\u8868\u5f53\u524d\u7684\u65f6\u95f4<\/p>\n\n\n\n<p id=\"u2058d3f1\">up\u53f3\u8fb9\u4ee3\u8868\u8fd0\u884c\u4e86\u591a\u957f\u65f6\u95f4<\/p>\n\n\n\n<p id=\"ud3f661c9\">load average: 0.86, 0.56, 0.78 CPU 1\u5206\u949f\uff0c5\u5206\u949f\uff0c15\u5206\u949f\u5e73\u5747\u8d1f\u8f7d<\/p>\n\n\n\n<p id=\"uc57ef33b\">\u5e73\u5747\u8d1f\u8f7d\u89e3\u91ca\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p id=\"u7f286062\">&#8221;&#8217;<\/p>\n\n\n\n<p id=\"u67067d72\">===========&gt; \u5173\u4e8ecpu\u7684\u4f7f\u7528\u60c5\u51b5\u6709\u4e24\u4e2a\u53c2\u8003\u6307\u6807<\/p>\n\n\n\n<p id=\"uffcf2554\">1\u3001\u5173\u4e8ecpu\u4f7f\u7528\u7387<\/p>\n\n\n\n<p id=\"ud7a0caab\">\u67d0\u4e2a\u7528\u6237\u8fdb\u7a0b\u5bf9cpu\u7684\u5229\u7528\u7387 = \u7528\u6237\u8fdb\u7a0b\u5360\u7528\u7684cpu\u65f6\u95f4\uff08\u5305\u62ec\u7528\u6237\u6001us+\u5185\u6838\u6001sy\uff09 \/ cpu\u7ecf\u5386\u7684\u8fd9\u6bb5\u603b\u65f6\u95f4<\/p>\n\n\n\n<p id=\"u6b54c613\">\u8fdb\u7a0b\u5bf9cpu\u7684\u5229\u7528\u7387\u4e3a100%\u4ee3\u8868\u4f7f\u75281\u9897cpu<\/p>\n\n\n\n<p id=\"u697c1daa\">\u8fdb\u7a0b\u5bf9cpu\u7684\u5229\u7528\u7387\u4e3a200%\u4ee3\u8868\u4f7f\u75282\u9897cpu<\/p>\n\n\n\n<p id=\"u819faec7\">\u5982\u679c\u5bbf\u4e3b\u673a\u53ea\u67094\u9897cpu\uff0c\u90a3\u4e48\u67d0\u4e2a\u8fdb\u7a0b\u5bf9cpu\u7684\u5229\u7528\u7387\u6700\u591a400%<\/p>\n\n\n\n<p id=\"uc2d22682\">\u603b\u7ed3\uff1acpu\u4f7f\u7528\u7387\u53cd\u5e94\u7684\u662fcpu\u7684\u5229\u7528\u60c5\u51b5<\/p>\n\n\n\n<p id=\"u577e23b2\">2\u3001\u5173\u4e8eload average<\/p>\n\n\n\n<p id=\"uabef76cb\">\u5728\u67d0\u6bb5\u65f6\u95f4\u5185\u5e73\u5747\u6d3b\u8dc3\u7684\u8fdb\u7a0b\u6570\uff08\u5305\u542b\u7cfb\u7edf\u5904\u4e8e\u53ef\u8fd0\u884c\u72b6\u6001\u4ee5\u53ca\u4e0d\u53ef\u4e2d\u65ad\u72b6\u6001\u7684\u5e73\u5747\u8fdb\u7a0b\u6570\uff09<\/p>\n\n\n\n<p id=\"uef6041b5\">\u5982\u679c\u5bbf\u4e3b\u673a\u67094\u9897cpu\uff0c\u90a3\u4e48\u5e73\u5747\u8d1f\u8f7d\u662f\u53ef\u4ee5\u8d85\u8fc74\u7684<\/p>\n\n\n\n<p id=\"ud7b283e3\">\u603b\u7ed3\uff1a\u8d1f\u8f7d\u8d1f\u8f7d\u53cd\u5e94\u7684cpu\u7684\u5de5\u4f5c\u91cf<\/p>\n\n\n\n<p id=\"u42935cb7\">\u4e3a\u4f55\u4e0d\u53ef\u4e2d\u65ad\u7761\u7720\u4e5f\u5c5e\u4e8e\u6d3b\u8dc3\u7684\u8fdb\u7a0b<\/p>\n\n\n\n<p id=\"ucd744ffe\">\u4e00\u4e2a\u8fdb\u7a0b\u5185\u8981\u505a\u7684\u4e8b\u53ef\u4ee5\u5206\u4e3a\u4e24\u5927\u7c7b<\/p>\n\n\n\n<p id=\"u3d09d241\">1\u3001\u8ba1\u7b97\u4efb\u52a1&#8212;\u300bcpu\u8d1f\u8d23\u8fd0\u884c<\/p>\n\n\n\n<p id=\"udcb25a51\">2\u3001io\u4efb\u52a1&#8212;&#8211;\u300b\u78c1\u76d8\u3001\u7f51\u5361\u8d1f\u8d23\u5904\u7406<\/p>\n\n\n\n<p id=\"u660f8354\">\u53ea\u8981\u8be5\u8fdb\u7a0b\u6b63\u5728\u88ab\u5904\u7406\u7740\uff0c\u90a3\u5b83\u5c31\u5c5e\u4e8e\u6d3b\u8dc3\u7684\u8fdb\u7a0b<\/p>\n\n\n\n<p id=\"ud4a784d8\">cpu\u5728\u6267\u884c\u8be5\u8fdb\u7a0b\u7684\u8ba1\u7b97\u673a\u4efb\u52a1\uff0c\u80af\u5b9a\u5c5e\u4e8e\u6d3b\u8dc3<\/p>\n\n\n\n<p id=\"u8897e102\">\u78c1\u76d8\u5728\u5904\u7406\u8be5\u8fdb\u7a0b\u7684io\u4efb\u52a1\uff0c\u90a3\u80af\u5b9a\u4e5f\u5c5e\u4e8e\u6d3b\u8dc3<\/p>\n\n\n\n<p id=\"ua836003b\">\u603b\u4e4b\u6709\u4e8b\u505a\u5c31\u5c5e\u4e8e\u6d3b\u8dc3<\/p>\n\n\n\n<p id=\"ua11bb348\">\u800cS\u72b6\u6001\uff0c\u5728\u7b49\u5f85\u7528\u6237\u8f93\u5165\u5185\u5bb9\uff0c\u800c\u6b64\u65f6\u7528\u6237\u4ec0\u4e48\u4e5f\u6ca1\u6709\u8f93\uff0c\u5373io\u64cd\u4f5c\u5565\u4e8b\u4e5f\u6ca1\u505a\uff0c\u8ba1\u7b97\u4efb\u52a1\u4e5f\u80af\u5b9a\u6ca1\u6709<\/p>\n\n\n\n<p id=\"u680b5ca2\">\u6574\u4e2a\u8fdb\u7a0b\u5c31\u662f\u4e0d\u6d3b\u8dc3\u7684<\/p>\n\n\n\n<p id=\"u58a70bba\">\u5982\u679c\u4f60\u7684\u7269\u7406\u673a\u67091\u9897cpu\uff0c\u90a3\u4e48\u6ee1\u8d1f\u8f7d\u4e3a1\uff0c\u4ee3\u8868\u53ef\u4ee5\u540c\u65f6\u8fd0\u884c1\u4e2a\u8fdb\u7a0b\uff0c\u8d85\u8fc71\u5c31\u4ee3\u8868\u8d85\u8f7d\uff0c\u5c0f\u4e8e1\u5c31\u4ee3\u8868\u7a7a\u95f2<\/p>\n\n\n\n<p id=\"u3784466e\">\u5982\u679c\u4f60\u7684\u7269\u7406\u673a\u67094\u9897cpu\uff0c\u90a3\u4e48\u6ee1\u8d1f\u8f7d\u4e3a4\uff0c\u4ee3\u8868\u53ef\u4ee5\u540c\u65f6\u8fd0\u884c4\u4e2a\u8fdb\u7a0b\uff0c\u8d85\u8fc74\u5219\u4ee3\u8868\u8d85\u8f7d\uff0c\u5c0f\u4e8e4\u5c31\u4ee3\u8868\u7a7a\u95f2<\/p>\n\n\n\n<p id=\"u5044db0d\">\u4ee51\u9897cpu\u4e3a\u4f8b\uff0c\u5982\u679c\u5904\u7406\u5668\u4e0a\u6709\u4e00\u4e2aR\u7684\u8fdb\u7a0b\uff0c\u540c\u65f6\u5728\u7cfb\u7edf\u7684\u8fdb\u7a0b\u53ef\u8fd0\u884c\u961f\u5217\u91cc\u67099\u4e2a\u8fdb\u7a0b\uff0c\u90a3\u4e481\u5206\u949f\u7684load average=1+9<\/p>\n\n\n\n<p id=\"uc21e1b84\">\u5982\u679c\u5bbf\u4e3b\u673a\u67094\u9897cpu\uff0c\u90a3\u4e48\u5e73\u5747\u8d1f\u8d23\u662f\u53ef\u4ee5\u8d85\u8fc74\u7684<\/p>\n\n\n\n<p id=\"ucdef62c1\">3\u3001\u7ed3\u8bba<\/p>\n\n\n\n<p id=\"u81b35615\">\u6709\u53ef\u80fd\u4f1a\u51fa\u73b0\u5de5\u4f5c\u91cf\u5f88\u5927\uff0c\u4f46\u662f\u5229\u7528\u7387\u5f88\u4f4e\uff0c\u6bd4\u5982\u6bcf\u4e2a\u5458\u5de5\u624b\u91cc\u90fd\u6709\u5f88\u591a\u6d3b\u8981\u505a\uff0c\u4f46\u5b9e\u9645\u4e0a\u4f60\u95ee\u95ee\u6bcf\u4e2a\u6d3b\u7684\u8fdb\u5ea6\u662f\u5565\u5927\u5bb6\u90fd\u544a\u8bc9\u8fd9\u4e9b\u6d3b\u90fd\u5728\u8fdb\u884c\u7740\uff0c\u4f46\u662f\u90fd\u5904\u4e8e\u7b49\u5f85\u7684\u72b6\u6001\uff0c\u4f60\u4f5c\u4e3a\u8001\u677f\u4f60\u77ac\u95f4\u6012\u4e86\uff0c\u4f60\u50bb\u554a\uff0c\u7b49\u5f85\u7684\u8fc7\u7a0b\u4f60\u4e0d\u4f1a\u5e72\u522b\u7684\u4e8b\u554a\uff0c\u5458\u5de5\u4e5f\u5f88\u51a4\u6789\uff0c\u8bf4\u4e0d\u884c\u554a\u8001\u677f\uff0c\u6211\u8fd9\u4e2aio\u662f\u4e0d\u53ef\u4e2d\u65ad\u7684io\uff0c\u4e0d\u80fd\u88ab\u4e2d\u65ad<\/p>\n\n\n\n<p id=\"udf404bea\">\u5fc5\u987b\u7b49\u7740\u5bf9\u65b9\u9001\u8fc7\u6765\u6570\u636e\u624d\u884c\uff0c\u4f60\u522b\u770b\u6211\u5f88\u95f2\uff0c\u4f46\u662f\u8fd9\u4ef6\u4e8b\u786e\u5b9e\u662f\u6b63\u5728\u8fdb\u884c\u7684\u4e8b\u60c5<\/p>\n\n\n\n<p id=\"u51ae637b\">===========&gt;\u5e73\u5747\u8d1f\u8f7d\u591a\u5c11\u5408\u7406?<\/p>\n\n\n\n<p id=\"u81d97e10\">\u5047\u8bbe\u73b0\u5728\u57284\uff0c2\uff0c1\u6838\u7684CPU\u4e0a\uff0c\u5982\u679c\u5e73\u5747\u8d1f\u8f7d\u4e3a2\u65f6\uff0c\u610f\u5473\u7740\u4ec0\u4e48\u5462?<\/p>\n\n\n\n<p id=\"u0d4109a5\">&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n\n\n\n<p id=\"u8a3dcff6\">\u6838\u5fc3\u6570 \u5e73\u5747\u8d1f\u8f7d \u542b\u4e49<\/p>\n\n\n\n<p id=\"u5d03c7ee\">4 2 \u6709\u4e00\u534a(50%)\u7684CPU\u65f6\u95f4\u662f\u7a7a\u95f2\u72b6\u6001<\/p>\n\n\n\n<p id=\"u29e60466\">2 2 CPU\u7684\u65f6\u95f4\u521a\u597d\u5b8c\u5168\u88ab\u5360\u7528<\/p>\n\n\n\n<p id=\"u86d504b9\">1 2 \u81f3\u5c11\u4e00\u534a\u7684\u8fdb\u7a0b\u662f\u62a2\u4e0d\u5230CPU\u7684\u65f6\u95f4\u7684<\/p>\n\n\n\n<p id=\"uf595799d\">&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n\n\n\n<p id=\"u40c3fdea\">===========&gt;\u5e73\u5747\u8d1f\u8f7d\u7684\u4e09\u4e2a\u6570\u503c\u6211\u4eec\u8be5\u5173\u6ce8\u54ea\u4e00\u4e2a\uff1f<\/p>\n\n\n\n<p id=\"u9e8c1cda\">\u4e09\u4e2a\u503c\u76f8\u5f53\u4e8e\u4e09\u4e2a\u6837\u672c\uff0c\u6211\u4eec\u5e94\u8be5\u7edf\u7b79\u5730\u770b<\/p>\n\n\n\n<p id=\"ufed64562\">1\u3001\u5982\u679c1\u5206\u949f\uff0c5\u5206\u949f\uff0c15\u5206\u949f\u7684\u8d1f\u8f7d\u6570\u503c\u90fd\u76f8\u5dee\u4e0d\u5927\uff0c\u4ee3\u8868\u7cfb\u7edf\u7684\u8d1f\u8f7d\u4ece\u8fc7\u53bb\u5230\u73b0\u5728\u90fd\u8fd1\u4e4e\u4e00\u6837<\/p>\n\n\n\n<p id=\"u7837ced8\">2\u3001\u5982\u679c1\u5206\u949f\u7684\u503c\uff0c\u8fdc\u5c0f\u4e8e15\u5206\u949f\u7684\u503c\uff0c\u90a3\u4e48\u8bc1\u660e\u7cfb\u7edf\u7684\u5e73\u5747\u8d1f\u8f7d\u9010\u6e10\u964d\u4f4e\uff0c\u5373\u6211\u4eec\u7684\u7cfb\u7edf\u521a\u521a\u7ecf\u5386\u8fc7\u5927\u98ce\u6d6a\uff0c\u4f46\u76ee\u524d\u5df2\u9010\u6e10\u8d8b\u4e8e\u5e73\u5747\u3002\u81f3\u4e8e15\u5206\u949f\u533a\u95f4\u5185\uff0c\u7cfb\u7edf\u8d1f\u8f7d\u4e0a\u5347\u7684\u539f\u56e0\uff0c\u8fd8\u9700\u8981\u6211\u4eec\u8ba4\u771f\u67e5\u660e<\/p>\n\n\n\n<p id=\"ub009d9cc\">3\u3001\u5982\u679c15\u5206\u949f\u7684\u503c\uff0c\u8fdc\u5c0f\u4e8e1\u5206\u949f\u7684\u503c\uff0c\u90a3\u4e48\u8bc1\u660e\u7cfb\u7edf\u7684\u5e73\u5747\u8d1f\u8f7d\u9010\u6e10\u5347\u9ad8\uff0c\u6709\u53ef\u80fd\u662f\u4e34\u65f6\u7684\u4e5f\u6709\u53ef\u80fd\u6301\u7eed\u4e0a\u5347\uff0c\u9700\u8981\u89c2\u5bdf<\/p>\n\n\n\n<p id=\"u5eac0b14\">4\u3001\u4e00\u65e61\u5206\u949f\u7684\u5e73\u5747\u8d1f\u8f7d\u63a5\u8fd1\u6216\u8d85\u8fc7\u4e86CPU\u7684\u4e2a\u6570\uff0c\u5c31\u610f\u5473\u7740\uff0c\u7cfb\u7edf\u6b63\u5728\u53d1\u751f\u8fc7\u8f7d\u7684\u95ee\u9898\uff0c\u8fd9\u65f6\u5019\u5c31\u5f97\u5206\u6790\u95ee\u9898\u4e86\uff0c \u5e76\u4e14\u8981\u60f3\u529e\u6cd5\u4f18\u5316\u3002<\/p>\n\n\n\n<p id=\"ufe4706b6\">==========&gt;\u5e73\u5747\u8d1f\u8f7d\u5b9e\u9a8c\uff1a4\u4e2aCPU\u8dd1\u6ee1<\/p>\n\n\n\n<p id=\"u523da904\">[root@egon ~]# cat \/proc\/cpuinfo | grep processor<\/p>\n\n\n\n<p id=\"u108c3150\">processor : 0<\/p>\n\n\n\n<p id=\"u969a2d8e\">processor : 1<\/p>\n\n\n\n<p id=\"ub20766be\">processor : 2<\/p>\n\n\n\n<p id=\"ud0fb3260\">processor : 3<\/p>\n\n\n\n<p id=\"ufbf2225c\">\u6253\u5f00\u7a97\u53e31\uff1a\u6267\u884ctop\u547d\u4ee4\uff0c\u7136\u540e\u63091\uff0c\u89c2\u5bdf\u56db\u4e2a\u6838\u7684id\u51e0\u4e4e\u4e3a100%\uff0c\u7136\u540e\u5728\u7a97\u53e32\u6267\u884c\u547d\u4ee4\u89c2\u5bdf\u8d1f\u8f7d\u60c5\u51b5<\/p>\n\n\n\n<p id=\"u9dfe70b6\">[root@egon ~]# top<\/p>\n\n\n\n<p id=\"u33cd2c9f\">[root@egon ~]# \u63091<\/p>\n\n\n\n<p id=\"uaada026e\">\u6253\u5f00\u7a97\u53e32\uff1a\u4f9d\u6b21\u6267\u884c\u4e0b\u8ff0\u547d\u4ee4\uff0c\u7136\u540e\u5728\u7a97\u53e3\u6765\u89c2\u5bdf\u53d8\u5316<\/p>\n\n\n\n<p id=\"u7e02335c\">[root@egon ~]# while true;do ((1+1));done &amp;<\/p>\n\n\n\n<p id=\"u6369d6b8\">[root@egon ~]# while true;do ((1+1));done &amp;<\/p>\n\n\n\n<p id=\"u388d6125\">[root@egon ~]# while true;do ((1+1));done &amp;<\/p>\n\n\n\n<p id=\"ud67a575d\">[root@egon ~]# while true;do ((1+1));done &amp;<\/p>\n\n\n\n<p id=\"u5a6e8b00\">\u7528ps aux | grep bash\u4f1a\u770b\u5230\u4e00\u7cfb\u5217R\u7684bash\u8fdb\u7a0b\uff0c\u7136\u540e\u4e00\u4e2a\u4e2a\u6740\u6389\uff0c\u89c2\u5bdfcpu\u7684\u8d1f\u8f7d\u9010\u6b65\u6062\u590d\u5e73\u9759<\/p>\n\n\n\n<p id=\"u03bc41bc\">\u601d\u8003\uff1a\u5982\u679c\u628a\u6d4b\u8bd5\u547d\u4ee4\u6362\u6210\u4e0b\u8ff0\u547d\u4ee4\uff0c\u4e00\u76f4\u8fde\u7eed\u6267\u884cn\u6b21\uff0ccpu\u8d1f\u8f7d\u90fd\u4e0d\u4f1a\u5f88\u9ad8\uff0c\u4e3a\u4ec0\u4e48\uff1f\uff1f<\/p>\n\n\n\n<p id=\"u28fa6b68\">[root@egon ~]# while true;do ((1+1));sleep 0.1;done &amp;<\/p>\n\n\n\n<p id=\"u7680ecf2\">[root@egon ~]# while true;do ((1+1));sleep 0.1;done &amp;<\/p>\n\n\n\n<p id=\"u3d0f111f\">[root@egon ~]# while true;do ((1+1));sleep 0.1;done &amp;<\/p>\n\n\n\n<p id=\"ueecd5c48\">\u3002\u3002\u3002\u6267\u884c\u597d\u591a\u6b21<\/p>\n\n\n\n<p id=\"u5b4cd0d8\">\u8865\u51451\uff1a\u4e5f\u53ef\u4ee5\u4f7f\u7528stress\u5de5\u5177\u6765\u53d6\u4ee3\u4e0a\u8ff0\u7684while\u547d\u4ee4<\/p>\n\n\n\n<p id=\"u0aa720cf\">stress\u662fLinux\u7cfb\u7edf\u538b\u529b\u6d4b\u8bd5\u5de5\u5177\uff0c\u53ef\u7528\u4f5c\u5f02\u5e38\u8fdb\u7a0b\u6a21\u62df\u5e73\u5747\u8d1f\u8f7d\u5347\u9ad8\u7684\u573a\u666f,\u9700\u8981\u5b89\u88c5yum install stress -y<\/p>\n\n\n\n<p id=\"u97d73914\">[root@egon ~]# stress &#8211;cpu 4 &#8211;timeout 3000 # 3000\u4ee3\u8868\u6301\u7eed\u6267\u884c3000\u79d2<\/p>\n\n\n\n<p id=\"u012d322e\">\u8865\u51452\uff1a\u5b89\u88c5yum install sysstat -y\u4f1a\u5f97\u5230\u4e0b\u8ff0\u4e24\u4e2a\u547d\u4ee4<\/p>\n\n\n\n<p id=\"u1bfe8c86\">mpstat \u662f\u591a\u6838CPU\u6027\u80fd\u5206\u6790\u5de5\u5177\uff0c\u7528\u6765\u5b9e\u65f6\u68c0\u67e5\u6bcf\u4e2aCPU\u7684\u6027\u80fd\u6307\u6807\uff0c\u4ee5\u53ca\u6240\u6709CPU\u7684\u5e73\u5747\u6307\u6807\u3002<\/p>\n\n\n\n<p id=\"ucdf5d215\">[root@egon ~]# mpstat -P ALL 3 # 3s\u8f93\u51fa\u4e00\u7ec4\u6240\u6709\u6307\u6807<\/p>\n\n\n\n<p id=\"u741565b8\">pidstat \u662f\u4e00\u4e2a\u5e38\u7528\u7684\u8fdb\u7a0b\u6027\u80fd\u5206\u6790\u5de5\u5177\uff0c\u7528\u6765\u5b9e\u65f6\u67e5\u770b\u8fdb\u7a0b\u7684CPU\uff0c\u5185\u5b58\uff0cIO\uff0c\u4ee5\u53ca\u4e0a\u4e0b\u6587\u5207\u6362\u7b49\u6027\u80fd\u6307\u6807\u3002<\/p>\n\n\n\n<p id=\"u59996bd8\">[root@egon ~]# pidstat -u 1 5 # 1\u79d2\u4e00\u6b21\uff0c\u603b\u5171\u8f93\u51fa5\u6b21<\/p>\n\n\n\n<p id=\"u094b8e19\">&#8221;&#8217;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"T609f\">\u7b2c\u4e09\u884c\u7684CPU\u7684\u4fe1\u606f\u6ce8\u91ca<\/h3>\n\n\n\n<p id=\"u53b27c00\">us User\uff0c\u7528\u6237\u6001\u8fdb\u7a0b\u5360\u7528cpu\u65f6\u95f4\u7684\u767e\u5206\u6bd4\uff0c\u4e0d\u5305\u62ec\u4f4e\u4f18\u5148\u7ea7\u8fdb\u7a0b\u7684\u7528\u6237\u6001\u65f6\u95f4\uff08\u503c1-19\uff09<br>sys System\uff0c\u5185\u6838\u6001\u8fdb\u7a0b\u5360\u7528cpu\u65f6\u95f4\u7684\u767e\u5206\u6bd4<br>ni Nice\uff0cnice\u503c\u4e3a1-19\u7684\u8fdb\u7a0b\uff0c\u7528\u6237\u6001\u5360cpu\u65f6\u95f4\u7684\u767e\u5206\u6bd4<br>id Idle\uff0c\u7cfb\u7edf\u7a7a\u95f2cpu\u7684\u767e\u5206\u6bd4<br>wa Iowait\uff0c\u7cfb\u7edf\u7b49\u5f85I\/O\u7684cpu\u65f6\u95f4\u5360\u6bd4\uff0c\u8be5\u65f6\u95f4\u4e0d\u8ba1\u5165\u8fdb\u7a0b\u7684CPU\u65f6\u95f4<br>hi Hardware irq\uff0c\u5904\u7406\u786c\u4ef6\u4e2d\u65ad\u6240\u5360\u7528CPU\u7684\u65f6\u95f4\uff0c\u8be5\u65f6\u95f4\u540c\u6837\u4e0d\u8ba1\u5165\u8fdb\u7a0b\u7684CPU\u65f6\u95f4<br>si Softtirq\uff0c\u5904\u7406\u8f6f\u4ef6\u4e2d\u65ad\u7684\u65f6\u95f4\uff0c\u8be5\u65f6\u95f4\u4e0d\u8ba1\u5165\u8fdb\u7a0b\u7684CPU\u65f6\u95f4<br>st Steal\uff0c\u8868\u793a\u540c\u4e00\u5bbf\u4e3b\u673a\u4e0a\u7684\u5176\u4ed6\u865a\u62df\u673a\u62a2\u8d70\u7684CPU\u65f6\u95f4<br><br>nice \u662f Linux \u548c Unix \u7cfb\u7edf\u4e2d\u7684\u4e00\u4e2a\u547d\u4ee4\uff0c\u5b83\u53ef\u4ee5\u7528\u6765\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u3002<br>\u5728 Unix-like \u7cfb\u7edf\u4e2d\uff0c\u6bcf\u4e00\u4e2a\u8fdb\u884cCPU\u8c03\u5ea6\u7684\u4efb\u52a1\uff08\u5305\u542b\u8fdb\u7a0b\u3001\u7ebf\u7a0b\uff09\u90fd\u6709\u4e00\u4e2a\u5bf9\u5e94\u7684 nice \u503c\uff0c\u8fd9\u4e2a\u503c\u51b3\u5b9a\u4e86\u5176\u5728\u83b7\u5f97 CPU \u65f6\u95f4\u65b9\u9762\u7684\u4f18\u5148\u7ea7\u3002nice \u503c\u7684\u8303\u56f4\u5728 -20 \u5230 19\uff0c\u5176\u4e2d -20 \u8868\u793a\u6700\u9ad8\u4f18\u5148\u7ea7\uff0c\u800c 19 \u5228\u793a\u6700\u4f4e\u4f18\u5148\u7ea7\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u65b0\u521b\u5efa\u7684\u8fdb\u7a0b nice \u503c\u662f 0\u3002<br>\u6240\u4ee5\u6211\u4eec\u4ee50\u8fd9\u4e2anice\u503c\u4e3a\u5206\u6c34\u5cad\uff0c1-19\u90fd\u5c5e\u4e8e\u6bd4\u666e\u901a\u8fdb\u7a0b\u4f18\u5148\u7ea7\u8981\u4f4e\u7684\u8fdb\u7a0b\uff0c\u8fd9\u7c7b\u4f4e\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u5bf9cpu\u7684\u4f7f\u7528\u7387\u4f1a\u8ba1\u5165top\u7edf\u8ba1\u7684ni\u72b6\u6001\u4e2d<br>-20~-1\u90fd\u5c5e\u4e8e\u6bd4\u8f83\u9ad8\u4f18\u5148\u7ea7\u7684\uff0c\u4f1a\u8ba1\u5165top\u7edf\u8ba1\u7684us\u72b6\u6001\u4e2d<br><br>nice\u503c\u53c8\u79f0\u4e4b\u4e3a\u597d\u5fc3\u503c\uff0c\u503c\u8d8a\u5927\u8d8a\u597d\u5fc3\uff0c\u90a3\u4e48\u4f18\u5148\u7ea7\u5c31\u4f1a\u8d8a\u4f4e\uff0c\u8fd9\u5c31\u6709\u70b9\u63a5\u8fd1\u751f\u6d3b\u4e86<br>\u5982\u679c\u4f60\u5bf9\u4e00\u4e2a\u8fdb\u7a0b\u8bbe\u7f6e\u4e86 nice \u503c\uff0c\u90a3\u4e48\u5b83\u7684 CPU \u8c03\u5ea6\u4f18\u5148\u7ea7\u5c06\u4f1a\u6839\u636e\u8fd9\u4e2a nice \u503c\u6765\u8fdb\u884c\u8c03\u6574\uff1a<br>\u5982\u679c\u4f60\u5c06 nice \u503c\u8bbe\u7f6e\u5f97\u8f83\u4f4e\uff08\u4f8b\u5982-20\uff09\uff0c\u90a3\u4e48\u8fd9\u4e2a\u8fdb\u7a0b\u5c06\u4f1a\u6709\u66f4\u9ad8\u7684\u4f18\u5148\u7ea7\uff0c\u5f53 CPU \u8fdb\u884c\u4efb\u52a1\u8c03\u5ea6\u7684\u65f6\u5019\uff0c\u8fd9\u4e2a\u8fdb\u7a0b\u66f4\u6709\u53ef\u80fd\u88ab\u9009\u4e2d\u6267\u884c\u3002<br>\u53cd\u4e4b\uff0c\u5982\u679c\u4f60\u5c06 nice \u503c\u8bbe\u7f6e\u5f97\u8f83\u9ad8\uff08\u4f8b\u5982+19\uff09\uff0c\u90a3\u4e48\u8fd9\u4e2a\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u5c06\u4f1a\u964d\u4f4e\uff0c\u5b83\u88ab CPU \u9009\u4e2d\u6267\u884c\u7684\u673a\u4f1a\u5c31\u66f4\u5c0f\u4e86\u3002<br>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u53ea\u6709\u62e5\u6709\u9002\u5f53\u6743\u9650\uff08\u4f8b\u5982 root \u7528\u6237\uff09\u624d\u80fd\u591f\u5c06\u8fdb\u7a0b\u7684 nice \u503c\u8bbe\u7f6e\u4e3a\u8d1f\u6570\u3002\u8fd9\u662f\u4e3a\u4e86\u9632\u6b62\u666e\u901a\u7528\u6237\u901a\u8fc7\u589e\u5927\u67d0\u4e2a\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u4e0d\u516c\u5e73\u5730\u5360\u7528\u8fc7\u591a\u7684 CPU \u8d44\u6e90\u3002<br><br>linux\u4e2d\u65ad\uff1ahttps:\/\/www.cnblogs.com\/linhaifeng\/articles\/13916102.html<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/zhaoyanqi.cn\/wp-content\/uploads\/2024\/05\/image-5.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"909\" height=\"562\" data-original=\"https:\/\/zhaoyanqi.cn\/wp-content\/uploads\/2024\/05\/image-5.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-99\"  sizes=\"auto, (max-width: 909px) 100vw, 909px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/zhaoyanqi.cn\/wp-content\/uploads\/2024\/05\/image-6.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"380\" data-original=\"https:\/\/zhaoyanqi.cn\/wp-content\/uploads\/2024\/05\/image-6.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-100\"  sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"SL0Lo\">top\u5185\u90e8\u547d\u4ee4<\/h3>\n\n\n\n<p id=\"u68e7f43a\">l \u2013 \u5173\u95ed\u6216\u5f00\u542f\u7b2c\u4e00\u90e8\u5206\u7b2c\u4e00\u884c top \u4fe1\u606f\u7684\u8868\u793a<\/p>\n\n\n\n<p id=\"u46bd20ee\">t \u2013 \u5173\u95ed\u6216\u5f00\u542f\u7b2c\u4e00\u90e8\u5206\u7b2c\u4e8c\u884c Tasks \u548c\u7b2c\u4e09\u884c Cpus \u4fe1\u606f\u7684\u8868\u793a<\/p>\n\n\n\n<p id=\"u898b4cac\">m \u2013 \u5173\u95ed\u6216\u5f00\u542f\u7b2c\u4e00\u90e8\u5206\u7b2c\u56db\u884c Mem \u548c \u7b2c\u4e94\u884c Swap \u4fe1\u606f\u7684\u8868\u793a<\/p>\n\n\n\n<p id=\"ud1067a5e\">N \u2013 \u4ee5 PID \u7684\u5927\u5c0f\u7684\u987a\u5e8f\u6392\u5217\u8868\u793a\u8fdb\u7a0b\u5217\u8868<\/p>\n\n\n\n<p id=\"uc72add1f\">P \u2013 \u4ee5 CPU \u5360\u7528\u7387\u5927\u5c0f\u7684\u987a\u5e8f\u6392\u5217\u8fdb\u7a0b\u5217\u8868<\/p>\n\n\n\n<p id=\"u25bed19c\">M \u2013 \u4ee5\u5185\u5b58\u5360\u7528\u7387\u5927\u5c0f\u7684\u987a\u5e8f\u6392\u5217\u8fdb\u7a0b\u5217\u8868<\/p>\n\n\n\n<p id=\"ub3ef2119\">h \u2013 \u663e\u793a\u5e2e\u52a9<\/p>\n\n\n\n<p id=\"u46e836ee\">n \u2013 \u8bbe\u7f6e\u5728\u8fdb\u7a0b\u5217\u8868\u6240\u663e\u793a\u8fdb\u7a0b\u7684\u6570\u91cf<\/p>\n\n\n\n<p id=\"u76c07cd1\">q \u2013 \u9000\u51fa top<\/p>\n\n\n\n<p id=\"u02ef4756\">\u5e8f\u53f7 \u5217\u540d \u542b\u4e49<\/p>\n\n\n\n<p id=\"u3c8e9f0a\">a PID \u8fdb\u7a0bid<\/p>\n\n\n\n<p id=\"ubaa1c8fa\">b PPID \u7236\u8fdb\u7a0bid<\/p>\n\n\n\n<p id=\"u210b1fa7\">c RUSER Real user name<\/p>\n\n\n\n<p id=\"ufbf13e00\">d UID \u8fdb\u7a0b\u6240\u6709\u8005\u7684\u7528\u6237id<\/p>\n\n\n\n<p id=\"u9ab09e07\">e USER \u8fdb\u7a0b\u6240\u6709\u8005\u7684\u7528\u6237\u540d<\/p>\n\n\n\n<p id=\"u7541d1d9\">f GROUP \u8fdb\u7a0b\u6240\u6709\u8005\u7684\u7ec4\u540d<\/p>\n\n\n\n<p id=\"uaa1b3b32\">g TTY \u542f\u52a8\u8fdb\u7a0b\u7684\u7ec8\u7aef\u540d\u3002\u4e0d\u662f\u4ece\u7ec8\u7aef\u542f\u52a8\u7684\u8fdb\u7a0b\u5219\u663e\u793a\u4e3a ?<\/p>\n\n\n\n<p id=\"u8329742f\">h PR \u4f18\u5148\u7ea7<\/p>\n\n\n\n<p id=\"u050b6830\">i NI nice\u503c\u3002\u8d1f\u503c\u8868\u793a\u9ad8\u4f18\u5148\u7ea7\uff0c\u6b63\u503c\u8868\u793a\u4f4e\u4f18\u5148\u7ea7<\/p>\n\n\n\n<p id=\"u9a3272fb\">j P \u6700\u540e\u4f7f\u7528\u7684CPU\uff0c\u4ec5\u5728\u591aCPU\u73af\u5883\u4e0b\u6709\u610f\u4e49<\/p>\n\n\n\n<p id=\"uc03081ed\">k %CPU \u4e0a\u6b21\u66f4\u65b0\u5230\u73b0\u5728\u7684CPU\u65f6\u95f4\u5360\u7528\u767e\u5206\u6bd4<\/p>\n\n\n\n<p id=\"u06e607e7\">l TIME \u8fdb\u7a0b\u4f7f\u7528\u7684CPU\u65f6\u95f4\u603b\u8ba1\uff0c\u5355\u4f4d\u79d2<\/p>\n\n\n\n<p id=\"ue730574e\">m TIME+ 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\u53ef\u6267\u884c\u4ee3\u7801\u4ee5\u5916\u7684\u90e8\u5206(\u6570\u636e\u6bb5+\u6808)\u5360\u7528\u7684\u7269\u7406\u5185\u5b58\u5927\u5c0f\uff0c\u5355\u4f4dkb<\/p>\n\n\n\n<p id=\"u9e519deb\">t SHR \u5171\u4eab\u5185\u5b58\u5927\u5c0f\uff0c\u5355\u4f4dkb<\/p>\n\n\n\n<p id=\"ud67053d5\">u nFLT \u9875\u9762\u9519\u8bef\u6b21\u6570<\/p>\n\n\n\n<p id=\"u133f7b01\">v nDRT \u6700\u540e\u4e00\u6b21\u5199\u5165\u5230\u73b0\u5728\uff0c\u88ab\u4fee\u6539\u8fc7\u7684\u9875\u9762\u6570\u3002<\/p>\n\n\n\n<p id=\"u217efffc\">w S \u8fdb\u7a0b\u72b6\u6001\u3002\uff08D=\u4e0d\u53ef\u4e2d\u65ad\u7684\u7761\u7720\u72b6\u6001\uff0cR=\u8fd0\u884c\uff0cS=\u7761\u7720\uff0cT=\u8ddf\u8e2a\/\u505c\u6b62\uff0cZ=\u50f5\u5c38\u8fdb\u7a0b\uff09<\/p>\n\n\n\n<p id=\"u05380969\">x COMMAND \u547d\u4ee4\u540d\/\u547d\u4ee4\u884c<\/p>\n\n\n\n<p id=\"ue052351c\">y WCHAN \u82e5\u8be5\u8fdb\u7a0b\u5728\u7761\u7720\uff0c\u5219\u663e\u793a\u7761\u7720\u4e2d\u7684\u7cfb\u7edf\u51fd\u6570\u540d<\/p>\n\n\n\n<p id=\"uee56f999\">z Flags \u4efb\u52a1\u6807\u5fd7\uff0c\u53c2\u8003 sched.h<\/p>\n\n\n\n<p id=\"u499949d6\">\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u4ec5\u663e\u793a\u6bd4\u8f83\u91cd\u8981\u7684 PID\u3001USER\u3001PR\u3001NI\u3001VIRT\u3001RES\u3001SHR\u3001S\u3001%CPU\u3001%MEM\u3001TIME+\u3001COMMAND \u5217\u3002\u53ef\u4ee5\u901a\u8fc7\u4e0b\u9762\u7684\u5feb\u6377\u952e\u6765\u66f4\u6539\u663e\u793a\u5185\u5bb9\u3002<\/p>\n\n\n\n<p id=\"uafd8547a\">\u901a\u8fc7 f \u952e\u53ef\u4ee5\u9009\u62e9\u663e\u793a\u7684\u5185\u5bb9\u3002\u6309 f \u952e\u4e4b\u540e\u4f1a\u663e\u793a\u5217\u7684\u5217\u8868\uff0c\u6309 a-z \u5373\u53ef\u663e\u793a\u6216\u9690\u85cf\u5bf9\u5e94\u7684\u5217\uff0c\u6700\u540e\u6309\u56de\u8f66\u952e\u786e\u5b9a\u3002<\/p>\n\n\n\n<p id=\"u87ee7107\">\u6309 o \u952e\u53ef\u4ee5\u6539\u53d8\u5217\u7684\u663e\u793a\u987a\u5e8f\u3002\u6309\u5c0f\u5199\u7684 a-z \u53ef\u4ee5\u5c06\u76f8\u5e94\u7684\u5217\u5411\u53f3\u79fb\u52a8\uff0c\u800c\u5927\u5199\u7684 A-Z \u53ef\u4ee5\u5c06\u76f8\u5e94\u7684\u5217\u5411\u5de6\u79fb\u52a8\u3002\u6700\u540e\u6309\u56de\u8f66\u952e\u786e\u5b9a\u3002<\/p>\n\n\n\n<p id=\"ubbf9e6b3\">\u6309\u5927\u5199\u7684 F \u6216 O \u952e\uff0c\u7136\u540e\u6309 a-z \u53ef\u4ee5\u5c06\u8fdb\u7a0b\u6309\u7167\u76f8\u5e94\u7684\u5217\u8fdb\u884c\u6392\u5e8f\u3002\u800c\u5927\u5199\u7684 R \u952e\u53ef\u4ee5\u5c06\u5f53\u524d\u7684\u6392\u5e8f\u5012\u8f6c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"XkeVk\">\u4e94\u3001\u67e5\u770b\u8fdb\u7a0b\u6811\u7684\u547d\u4ee4<\/h2>\n\n\n\n<pre id=\"LOOkr\" class=\"wp-block-code\"><code>&#91;root@egon ~]# rpm -qf `which pstree`\npsmisc-22.20-16.el7.x86_64\n&#91;root@egon ~]# pstree\n&#91;root@egon ~]# pstree 104239\nbash\u2500\u2500\u2500bash\u2500\u2500\u2500bash\u2500\u2500\u2500bash\u2500\u2500\u2500pstree<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"jnj0K\">\u516d\u3001\u67e5\u770bPPID\uff0c\u4e5f\u5c31\u662f\u7236\u8fdb\u7a0bID<\/h2>\n\n\n\n<pre id=\"eB3zB\" class=\"wp-block-code\"><code>&#91;root@egon ~]# ps -elf | head -10\nUID         PID   PPID  C STIME TTY          TIME CMD\nroot          1      0  0 11\u670801 ?      00:00:07 \/usr\/lib\/systemd\/systemd --system --deserialize 20\nroot          2      0  0 11\u670801 ?      00:00:00 &#91;kthreadd]\nroot          4      2  0 11\u670801 ?      00:00:00 &#91;kworker\/0:0H]\nroot          6      2  0 11\u670801 ?      00:00:06 &#91;ksoftirqd\/0]\nroot          7      2  0 11\u670801 ?      00:00:00 &#91;migration\/0]\nroot          8      2  0 11\u670801 ?      00:00:00 &#91;rcu_bh]\nroot          9      2  0 11\u670801 ?      00:00:03 &#91;rcu_sched]\nroot         10      2  0 11\u670801 ?      00:00:00 &#91;lru-add-drain]\nroot         11      2  0 11\u670801 ?      00:00:01 &#91;watchdog\/0]<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u6e29\u6545\u77e5\u65b0\uff1a \u591a\u9053\u6280\u672f\uff1a 1.\u4ea7\u751f\u80cc\u666f\uff1a\u9488\u5bf9\u5355\u6838\uff0c\u5b9e\u73b0\u5e76\u53d1 ps\uff1a \u73b0\u5728\u7684\u4e3b\u673a\u4e00\u822c\u662f\u591a\u6838\uff0c\u90a3\u4e48\u6bcf\u4e2a\u6838\u90fd\u4f1a\u5229\u7528\u591a\u9053 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-97","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=\/wp\/v2\/posts\/97","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=97"}],"version-history":[{"count":1,"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=\/wp\/v2\/posts\/97\/revisions"}],"predecessor-version":[{"id":101,"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=\/wp\/v2\/posts\/97\/revisions\/101"}],"wp:attachment":[{"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=97"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=97"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zhaoyanqi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=97"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}