{"id":33005,"date":"2025-04-26T10:26:50","date_gmt":"2025-04-26T02:26:50","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/33005.html"},"modified":"2025-04-26T10:26:50","modified_gmt":"2025-04-26T02:26:50","slug":"linux%e8%bf%9b%e7%a8%8b%e5%ad%a6%e4%b9%a0%e3%80%90%e8%bf%9b%e7%a8%8b%e7%8a%b6%e6%80%81%e3%80%91","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/33005.html","title":{"rendered":"Linux\u8fdb\u7a0b\u5b66\u4e60\u3010\u8fdb\u7a0b\u72b6\u6001\u3011"},"content":{"rendered":"<p>&#x1f33c;&#x1f33c;\u524d\u8a00&#xff1a;\u5728\u64cd\u4f5c\u7cfb\u7edf\u4e2d&#xff0c;\u8fdb\u7a0b\u662f\u6700\u57fa\u672c\u7684\u8d44\u6e90\u7ba1\u7406\u5355\u4f4d&#xff0c;\u800c\u64cd\u4f5c\u7cfb\u7edf\u901a\u8fc7\u7cbe\u786e\u7ba1\u7406\u8fd9\u4e9b\u8fdb\u7a0b\u7684\u72b6\u6001\u6765\u786e\u4fdd\u7cfb\u7edf\u80fd\u591f\u9ad8\u6548\u8fd0\u884c\u3002\u8fdb\u7a0b\u7684\u72b6\u6001\u4e0d\u4ec5\u4ec5\u662f\u64cd\u4f5c\u7cfb\u7edf\u8bbe\u8ba1\u7684\u4e00\u90e8\u5206&#xff0c;\u5b83\u5bf9\u7cfb\u7edf\u7684\u6027\u80fd\u3001\u7a33\u5b9a\u6027\u4ee5\u53ca\u8d44\u6e90\u7684\u5206\u914d\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u672c\u6587\u5c06\u5e26\u4f60\u5168\u9762\u4e86\u89e3Linux\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u7684\u5e38\u89c1\u8fdb\u7a0b\u72b6\u6001&#xff0c;\u5e76\u7ed3\u5408\u5b9e\u9645\u573a\u666f\u63a2\u8ba8\u6bcf\u79cd\u72b6\u6001\u7684\u5371\u5bb3\u4e0e\u597d\u5904\u3002\u6211\u4eec\u8fd8\u5c06\u5206\u4eab\u4e00\u4e9b\u4e2a\u4eba\u601d\u8003&#xff0c;\u5e2e\u52a9\u5927\u5bb6\u66f4\u597d\u5730\u7406\u89e3\u64cd\u4f5c\u7cfb\u7edf\u5728\u7ba1\u7406\u8fd9\u4e9b\u72b6\u6001\u65f6\u7684\u51b3\u7b56\u8fc7\u7a0b\u3002<\/p>\n<p>\u8fdb\u7a0b\u00a0\u53ea\u6709\u88abOS\u7ba1\u7406\u597d\u4e86&#xff0c;\u624d\u80fd\u53d1\u6325\u5b83\u7684\u5168\u90e8\u529f\u6548&#xff0c;\u800c\u7cfb\u7edf\u4e2d\u5b58\u5728\u591a\u4e2a\u00a0\u8fdb\u7a0b&#xff0c;OS\u65e0\u6cd5\u505a\u5230\u9762\u9762\u4ff1\u5230&#xff0c;\u56e0\u6b64\u4e3a\u4e86\u66f4\u597d\u7684\u7ba1\u7406\u8fdb\u7a0b&#xff0c;OS\u628a\u00a0\u8fdb\u7a0b\u00a0\u5206\u6210\u4e86\u51e0\u79cd\u72b6\u6001&#xff1a;\u963b\u585e\u3001\u6302\u8d77\u3001\u8fd0\u884c\u3001\u4f11\u7720\u7b49\u7b49&#xff0c;\u81f3\u4e8e\u6bcf\u79cd\u72b6\u6001\u7684\u5e94\u7528\u573a\u666f\u662f\u4ec0\u4e48\u3001\u6709\u4ec0\u4e48\u7528&#xff1f;\u672c\u6587\u5c06\u4f1a\u5e26\u7740\u5927\u5bb6\u8ba4\u8bc6\u7684\u5404\u79cd\u00a0\u8fdb\u7a0b\u00a0\u72b6\u6001\u00a0\u3002<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"476\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250426022647-680c446764139.png\" width=\"1267\" \/><\/p>\n<h4>&#x1f58b;\ufe0f 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\/>\nusing namespace std;<\/p>\n<p>#include&lt;unistd.h&gt;<br \/>\n#include&lt;sys\/types.h&gt;<\/p>\n<p>int main()<br \/>\n{<br \/>\n  while(1)<br \/>\n  {<br \/>\n    cout &lt;&lt; &#034;I&#039;m a process, my PID is:&#034; &lt;&lt; getpid() &lt;&lt; endl;<br \/>\n    sleep(1);<br \/>\n  }<br \/>\n  return 0;<br \/>\n}<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"193\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250426022647-680c4467b5475.png\" width=\"1005\" \/><\/p>\n<ul>\n<li><span style=\"color:#be191c\">\u53ea\u8981\u4f60\u7684\u7a0b\u5e8f\u51fa\u73b0&#xff0c;\u8f93\u51fa&#xff0c;\u8f93\u5165&#xff08;\u53ea\u8981\u6709\u8f93\u5165\u8f93\u51fa&#xff08;I\/O&#xff09;\u64cd\u4f5c&#xff0c;\u4f60\u901a\u5e38\u4e0d\u4f1a\u770b\u5230\u8fdb\u7a0b\u5904\u4e8e R&#043; \u72b6\u6001<\/span>&#xff09; \u56e0\u4e3a\u5f88\u591a\u7a0b\u5e8f\u90fd\u8981\u7528&#xff08;I\/O&#xff09; &#xff0c;\u6240\u4ee5\u5927\u5bb6\u8981\u6392\u961f\u3002\u6253\u5370\u4e00\u53e5\u8f93\u51fa\u8bed\u53e5\u5bf9\u4e8eCPU\u5c31\u51e0\u5fae\u79d2&#xff0c;CPU\u5728\u8fd9\u4e2a\u65f6\u95f4\u91cc\u53c8\u53bb\u8fd0\u884c\u5176\u4ed6\u7684\u8fdb\u7a0b\u4e86\u3002\u7b49\u5230\u65f6\u95f4\u7247\u8f6e\u8f6c\u4e0b\u4e00\u6b21\u5728\u8fd0\u884c\u5230\u5f53\u524d\u7684\u7a0b\u5e8f\u65f6&#xff0c;\u4e2d\u95f4\u7684\u65f6\u95f4&#xff0c;\u8fdb\u7a0b \u90fd\u5728\u5916\u8bbe<span style=\"color:#be191c\">\u7b49\u5f85\u961f\u5217\u4e2d \u6392\u961f\u3002<\/span><\/li>\n<\/ul>\n<p>\u5177\u4f53\u6d41\u7a0b&#xff1a;<\/p>\n<li>\n<p>I\/O \u64cd\u4f5c&#xff1a;\u6bd4\u5982\u6253\u5370\u4e00\u884c\u4fe1\u606f\u5230\u5c4f\u5e55&#xff0c;\u8fd9\u4e2a\u64cd\u4f5c\u672c\u8eab\u53ef\u80fd\u975e\u5e38\u5feb\u901f&#xff0c;\u51e0\u5fae\u79d2\u5185\u5c31\u5b8c\u6210\u3002\u7136\u800c&#xff0c;\u6253\u5370\u8f93\u51fa\u5230\u5c4f\u5e55\u7684\u8fc7\u7a0b\u5e76\u4e0d\u4ec5\u4ec5\u662f CPU \u8ba1\u7b97&#xff0c;\u5b83\u8fd8\u6d89\u53ca\u663e\u793a\u5668\u7684\u54cd\u5e94\u548c\u7cfb\u7edf\u7684\u8f93\u51fa\u64cd\u4f5c\u3002\u8fdb\u7a0b\u9700\u8981\u7b49\u5f85 I\/O \u64cd\u4f5c\u5b8c\u6210\u3002<\/p>\n<\/li>\n<li>\n<p>\u65f6\u95f4\u7247\u8f6e\u8f6c&#xff1a;\u8fdb\u7a0b\u901a\u5e38\u662f\u5206\u65f6\u6267\u884c\u7684&#xff0c;\u4e5f\u5c31\u662f\u8bf4&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u5c06 CPU \u7684\u65f6\u95f4\u7247\u5206\u914d\u7ed9\u591a\u4e2a\u8fdb\u7a0b\u8fd0\u884c\u3002\u5f53\u5f53\u524d\u8fdb\u7a0b\u5728\u8fdb\u884c I\/O \u64cd\u4f5c\u65f6&#xff08;\u6bd4\u5982\u8f93\u51fa\u5230\u5c4f\u5e55&#xff09;&#xff0c;\u5b83\u53ef\u80fd\u4f1a\u88ab\u6302\u8d77&#xff0c;\u7b49\u5f85 I\/O \u5b8c\u6210&#xff0c;\u800c\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u5c06 CPU \u65f6\u95f4\u7247\u5206\u914d\u7ed9\u5176\u4ed6\u8fdb\u7a0b\u3002\u56e0\u6b64&#xff0c;<span style=\"color:#be191c\">\u5f53\u524d\u8fdb\u7a0b\u77ed\u6682\u5730\u5931\u53bb CPU \u7684\u63a7\u5236\u6743&#xff0c;\u88ab\u653e\u5230 \u7b49\u5f85\u961f\u5217\u4e2d&#xff0c;\u7b49\u5f85 I\/O \u5b8c\u6210\u3002<\/span><\/p>\n<\/li>\n<li>\n<p>\u8fdb\u5165\u7b49\u5f85\u961f\u5217&#xff1a;\u8fdb\u7a0b\u8fdb\u884c I\/O \u64cd\u4f5c\u65f6&#xff0c;<span style=\"color:#be191c\">\u901a\u5e38\u4f1a\u8fdb\u5165 S \u72b6\u6001&#xff0c;\u4e5f\u5c31\u662f\u201c\u7761\u7720\u72b6\u6001\u201d&#xff0c;\u8868\u793a\u5b83\u5728\u7b49\u5f85 I\/O \u8d44\u6e90&#xff08;\u5982\u7b49\u5f85\u6570\u636e\u4ece\u78c1\u76d8\u8bfb\u53d6\u3001\u7b49\u5f85\u7f51\u7edc\u5305\u5230\u8fbe\u7b49&#xff09;<\/span>\u3002\u4e00\u65e6\u64cd\u4f5c\u7cfb\u7edf\u53d1\u73b0\u8fdb\u7a0b\u9700\u8981\u7b49\u5f85\u8d44\u6e90&#xff0c;\u5b83\u5c31\u4f1a\u5c06\u8be5\u8fdb\u7a0b\u4ece CPU \u4e0a\u79fb\u9664&#xff0c;\u6362\u5176\u4ed6\u8fdb\u7a0b\u6267\u884c\u3002<\/p>\n<\/li>\n<li>\n<p>R&#043; \u72b6\u6001\u7684\u6d88\u5931&#xff1a;\u53ea\u6709\u5f53\u8fdb\u7a0b\u4e0d\u9700\u8981\u7b49\u5f85\u5916\u90e8\u8d44\u6e90&#xff0c;\u5e76\u4e14\u80fd\u591f\u6301\u7eed\u5360\u7528 CPU \u6267\u884c\u8ba1\u7b97\u4efb\u52a1\u65f6&#xff0c;\u5b83\u624d\u4f1a\u7ef4\u6301 R&#043; \u72b6\u6001\u3002\u4e00\u65e6\u8fdb\u7a0b\u8fdb\u884c I\/O \u64cd\u4f5c&#xff0c;\u5b83\u5c31\u4f1a\u8fdb\u5165 S \u72b6\u6001&#xff0c;\u56e0\u6b64\u4f60\u901a\u5e38\u770b\u4e0d\u5230\u8fdb\u7a0b\u6301\u7eed\u5904\u4e8e R&#043; \u72b6\u6001&#xff0c;\u9664\u975e\u5b83\u771f\u7684\u4e0d\u6d89\u53ca I\/O \u64cd\u4f5c\u3002\u00a0<\/p>\n<\/li>\n<p>\u5f53\u6211\u4eec\u5c06\u6253\u5370\u8bed\u53e5\u548c\u7761\u7720\u8bed\u53e5\u5c4f\u853d\u540e&#xff0c;\u8fdb\u7a0b \u4e0d\u7528\u5728\u7b49\u5f85\u961f\u5217\u4e2d \u6392\u961f&#xff0c; CPU \u5c31\u4e00\u76f4\u5728\u5904\u7406\u6b7b\u5faa\u73af&#xff0c;\u6b64\u65f6\u53ef\u4ee5\u89c2\u5bdf\u5230 \u8fd0\u884c R \u72b6\u6001\u3002<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"173\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250426022647-680c4467e90dc.png\" width=\"999\" \/> \u00a0<\/p>\n<h4>&#x1f58b;\ufe0f \u7761\u7720\u72b6\u6001&#xff08;S&#xff09;<\/h4>\n<h6>\u5e94\u7528\u573a\u666f&#xff1a;<\/h6>\n<p>\u8fdb\u7a0b\u8fdb\u5165\u7761\u7720\u72b6\u6001\u901a\u5e38\u662f\u56e0\u4e3a\u7b49\u5f85\u67d0\u4e9b\u5916\u90e8\u8d44\u6e90\u7684\u5230\u6765\u3002\u8fd9\u4e9b\u8d44\u6e90\u5305\u62ecI\/O\u8bbe\u5907\u3001\u7f51\u7edc\u8fde\u63a5\u3001\u6587\u4ef6\u8bfb\u53d6\u7b49\u3002\u5f53\u4e00\u4e2a\u8fdb\u7a0b\u53d1\u8d77\u4e86I\/O\u8bf7\u6c42\u540e&#xff0c;\u901a\u5e38\u4f1a\u8fdb\u5165\u7761\u7720\u72b6\u6001&#xff0c;\u7b49\u5f85\u8bbe\u5907\u54cd\u5e94\u3002\u4f1a\u4eceCPU\u4e0a\u9762\u62ff\u4e0b\u6765\u3002<\/p>\n<p>\u6bd4\u5982&#xff0c;\u4f60\u5728Linux\u7cfb\u7edf\u4e0a\u6267\u884c\u4e00\u4e2a\u7a0b\u5e8f&#xff0c;\u5b83\u9700\u8981\u4ece\u78c1\u76d8\u8bfb\u53d6\u6570\u636e\u3002\u5728\u6570\u636e\u88ab\u8bfb\u53d6\u4e4b\u524d&#xff0c;\u8fdb\u7a0b\u4f1a\u8fdb\u5165\u7761\u7720\u72b6\u6001&#xff0c;\u76f4\u5230\u78c1\u76d8I\/O\u64cd\u4f5c\u5b8c\u6210&#xff0c;\u8fdb\u7a0b\u624d\u4f1a\u88ab\u5524\u9192\u5e76\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n<p>\u597d\u5904&#xff1a;<\/p>\n<li>\n<p>\u8d44\u6e90\u9ad8\u6548\u5229\u7528&#xff1a;\u5728\u7b49\u5f85\u67d0\u4e9b\u8d44\u6e90\u65f6&#xff0c;\u8fdb\u7a0b\u4f1a\u8fdb\u5165\u7761\u7720\u72b6\u6001&#xff0c;\u8fd9\u6837\u53ef\u4ee5\u91ca\u653eCPU&#xff0c;\u8ba9\u5176\u4ed6\u6709\u4efb\u52a1\u7684\u8fdb\u7a0b\u80fd\u591f\u7ee7\u7eed\u8fd0\u884c\u3002\u8fd9\u4f7f\u5f97CPU\u7684\u4f7f\u7528\u66f4\u52a0\u9ad8\u6548&#xff0c;\u907f\u514d\u65e0\u8c13\u7684\u7a7a\u8f6c\u3002<\/p>\n<\/li>\n<li>\n<p>\u964d\u4f4e\u7cfb\u7edf\u8d1f\u8f7d&#xff1a;\u8fdb\u7a0b\u5728\u7761\u7720\u72b6\u6001\u65f6\u4e0d\u4f1a\u5360\u7528CPU&#xff0c;\u80fd\u591f\u964d\u4f4e\u7cfb\u7edf\u7684\u8d1f\u8f7d&#xff0c;\u5e76\u786e\u4fdd\u5176\u4ed6\u8fdb\u7a0b\u80fd\u591f\u987a\u5229\u6267\u884c\u3002<\/p>\n<\/li>\n<h5><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"321\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250426022648-680c446826eb1.png\" width=\"1058\" \/><\/h5>\n<p>\u64cd\u4f5c\u7cfb\u7edf\u901a\u8fc7\u5f02\u6b65I\/O\u5904\u7406\u673a\u5236&#xff08;\u4f8b\u5982&#xff0c;\u4f7f\u7528\u4e8b\u4ef6\u9a71\u52a8\u6846\u67b6&#xff09;\u80fd\u591f\u66f4\u597d\u5730\u7ba1\u7406\u8fdb\u7a0b\u7684\u7761\u7720\u72b6\u6001&#xff0c;\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u7b49\u5f85\u65f6\u95f4&#xff0c;\u63d0\u9ad8\u7cfb\u7edf\u7684\u5e76\u53d1\u6027\u3002\u8fdb\u4e00\u6b65\u7684\u4f18\u5316\u53ef\u4ee5\u5e2e\u52a9\u51cf\u5c11I\/O\u7b49\u5f85\u7684\u5f71\u54cd&#xff0c;\u63d0\u9ad8\u7cfb\u7edf\u54cd\u5e94\u80fd\u529b\u3002<\/p>\n<h4>&#x1f58b;\ufe0f \u4f11\u7720\u72b6\u6001&#xff08;D&#xff09;<\/h4>\n<h6>\u5e94\u7528\u573a\u666f&#xff1a;<\/h6>\n<p>\u4f11\u7720\u72b6\u6001\u662f\u6307\u8fdb\u7a0b\u56e0\u7b49\u5f85<span style=\"color:#be191c\">\u4e0d\u53ef\u4e2d\u65ad\u7684<\/span>\u8d44\u6e90\u800c\u8fdb\u5165\u7684\u4e00\u79cd\u7279\u6b8a\u72b6\u6001\u3002\u901a\u5e38&#xff0c;\u8fdb\u7a0b\u4f1a\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u662f\u56e0\u4e3a\u5b83\u9700\u8981\u8fdb\u884cI\/O\u64cd\u4f5c\u6216\u7b49\u5f85\u786c\u4ef6\u8bbe\u5907\u7684\u54cd\u5e94\u3002\u8fd9\u79cd\u72b6\u6001\u4e0e\u7761\u7720\u72b6\u6001&#xff08;S\u53ef\u4e2d\u65ad\u4f11\u7720&#xff09;\u4e0d\u540c&#xff0c;\u4f11\u7720\u72b6\u6001\u4e0b\u7684\u8fdb\u7a0b\u65e0\u6cd5\u901a\u8fc7\u5e38\u89c4\u4fe1\u53f7\u4e2d\u65ad\u3002Kill -9 \u6307\u4ee4\u65e0\u6cd5\u4e2d\u65ad\u8fd9\u79cd\u72b6\u6001\u3002<\/p>\n<p>\u4f8b\u5982&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u5728\u8bbf\u95ee\u78c1\u76d8\u65f6&#xff0c;\u5982\u679c\u78c1\u76d8I\/O\u64cd\u4f5c\u6ca1\u6709\u5b8c\u6210&#xff0c;\u8fdb\u7a0b\u5c31\u4f1a\u8fdb\u5165\u4f11\u7720\u72b6\u6001&#xff0c;\u76f4\u5230\u786c\u4ef6\u8bbe\u5907\u51c6\u5907\u597d\u6216I\/O\u64cd\u4f5c\u5b8c\u6210\u3002<\/p>\n<p>\u597d\u5904&#xff1a;<\/p>\n<li>\n<p>\u907f\u514d\u6d6a\u8d39CPU\u8d44\u6e90&#xff1a;\u5728\u8fdb\u7a0b\u7b49\u5f85\u786c\u4ef6\u8bbe\u5907\u54cd\u5e94\u65f6&#xff0c;\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u53ef\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684CPU\u6d88\u8017\u3002\u8fd9\u6709\u52a9\u4e8e\u7cfb\u7edf\u4f18\u5316\u8d44\u6e90\u4f7f\u7528&#xff0c;\u907f\u514d\u8fc7\u5ea6\u7684CPU\u5360\u7528\u3002<\/p>\n<\/li>\n<li>\n<p>\u4fdd\u8bc1I\/O\u64cd\u4f5c\u7a33\u5b9a\u6027&#xff1a;\u4f11\u7720\u72b6\u6001\u901a\u5e38\u51fa\u73b0\u5728I\/O\u64cd\u4f5c\u671f\u95f4&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\u786e\u4fddI\/O\u64cd\u4f5c\u80fd\u591f\u987a\u5229\u5b8c\u6210&#xff0c;\u800c\u4e0d\u81f3\u4e8e\u53d7\u5230\u5176\u4ed6\u8fdb\u7a0b\u7684\u5f71\u54cd\u3002<\/p>\n<\/li>\n<p>\u5371\u5bb3&#xff1a;<\/p>\n<li>\n<p>\u8fdb\u7a0b\u5361\u4f4f&#xff1a;\u4e00\u65e6\u8fdb\u7a0b\u8fdb\u5165\u4f11\u7720\u72b6\u6001&#xff0c;\u5982\u679c\u957f\u65f6\u95f4\u6ca1\u6709\u786c\u4ef6\u8bbe\u5907\u54cd\u5e94&#xff0c;\u53ef\u80fd\u4f1a\u5bfc\u81f4\u8fdb\u7a0b\u201c\u5361\u4f4f\u201d&#xff0c;\u4ece\u800c\u62d6\u6162\u6574\u4e2a\u7cfb\u7edf\u7684\u6548\u7387\u3002<\/p>\n<\/li>\n<li>\n<p>\u7cfb\u7edf\u54cd\u5e94\u7f13\u6162&#xff1a;\u5982\u679c\u7cfb\u7edf\u4e2d\u5927\u91cf\u8fdb\u7a0b\u90fd\u8fdb\u5165\u4f11\u7720\u72b6\u6001&#xff0c;\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6574\u4f53\u7cfb\u7edf\u7684\u54cd\u5e94\u53d8\u6162&#xff0c;\u7528\u6237\u53ef\u80fd\u4f1a\u611f\u89c9\u5230\u7cfb\u7edf\u7684\u4e0d\u6d41\u7545\u3002<\/p>\n<\/li>\n<li>\n<p>\u53ef\u80fd\u5bfc\u81f4\u6b7b\u9501\u6216\u7cfb\u7edf\u4e0d\u54cd\u5e94&#xff1a;\u5982\u679c\u591a\u4e2a\u8fdb\u7a0b\u56e0\u4e3a\u7b49\u5f85\u540c\u4e00\u8d44\u6e90\u800c\u8fdb\u5165D\u72b6\u6001&#xff0c;\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6b7b\u9501&#xff0c;\u8fd9\u65f6\u5019\u7cfb\u7edf\u53ef\u80fd\u4f1a\u51fa\u73b0\u4e0d\u54cd\u5e94\u7684\u73b0\u8c61&#xff0c;\u7279\u522b\u662f\u5728\u6ca1\u6709\u6b63\u786e\u7684\u8d44\u6e90\u7ba1\u7406\u673a\u5236\u65f6\u3002<\/p>\n<\/li>\n<p>\u4f11\u7720\u72b6\u6001\u867d\u7136\u80fd\u591f\u51cf\u5c11CPU\u8d44\u6e90\u7684\u6d6a\u8d39&#xff0c;\u4f46\u5b83\u4e5f\u53ef\u80fd\u6210\u4e3a\u7cfb\u7edf\u6027\u80fd\u74f6\u9888\u7684\u4e00\u90e8\u5206\u3002\u968f\u7740\u786c\u4ef6\u7684\u8fdb\u6b65&#xff08;\u5982\u66f4\u5feb\u7684SSD\u3001\u6539\u8fdb\u7684\u7f51\u7edc\u786c\u4ef6\u7b49&#xff09;&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u53ef\u4ee5\u901a\u8fc7\u66f4\u9ad8\u6548\u7684\u786c\u4ef6\u652f\u6301\u6765\u51cf\u5c11\u8fdb\u7a0b\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u7684\u65f6\u95f4&#xff0c;\u4ece\u800c\u63d0\u5347\u6574\u4f53\u7cfb\u7edf\u54cd\u5e94\u901f\u5ea6\u3002<\/p>\n<p>\u00a0\u5178\u578b\u573a\u666f&#xff1a;<\/p>\n<ul>\n<li>\n<p>S\u6001&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u7b49\u5f85\u78c1\u76d8\u6587\u4ef6\u8bfb\u53d6\u65f6&#xff0c;\u8fdb\u7a0b\u5904\u4e8eS\u6001&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u5141\u8bb8\u8fdb\u7a0b\u54cd\u5e94\u4fe1\u53f7\u548c\u4e2d\u65ad\u3002\u8fd9\u610f\u5473\u7740\u8fdb\u7a0b\u5728\u7b49\u5f85\u78c1\u76d8I\/O\u7684\u540c\u65f6&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u53ef\u4ee5\u8c03\u5ea6\u5176\u4ed6\u8fdb\u7a0b\u6267\u884c&#xff0c;\u751a\u81f3\u53ef\u80fd\u4f1a\u5524\u9192\u8be5\u8fdb\u7a0b\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n<\/li>\n<li>\n<p>\u8fdb\u7a0b\u7b49\u5f85\u7528\u6237\u8f93\u5165\u65f6&#xff0c;\u8fdb\u7a0b\u4f1a\u8fdb\u5165S\u6001&#xff0c;\u6b64\u65f6\u7b49\u5f85\u53ef\u4ee5\u88ab\u5916\u90e8\u4e2d\u65ad&#xff0c;\u4f8b\u5982\u7528\u6237\u53ef\u4ee5\u6309 Ctrl&#043;C \u4e2d\u65ad\u64cd\u4f5c\u3002<\/p>\n<\/li>\n<li>\n<p>\u573a\u666f\u793a\u4f8b&#xff1a;\u5f53\u4f60\u8fd0\u884c cat \u547d\u4ee4\u8bfb\u53d6\u4e00\u4e2a\u6587\u4ef6\u65f6&#xff0c;\u8fdb\u7a0b\u4f1a\u8fdb\u5165 S\u6001&#xff0c;\u76f4\u5230\u64cd\u4f5c\u7cfb\u7edf\u5b8c\u6210\u78c1\u76d8I\/O\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>D\u6001&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u7b49\u5f85\u786c\u76d8\u8bbe\u5907I\/O\u64cd\u4f5c\u5b8c\u6210\u65f6&#xff0c;\u8fdb\u7a0b\u53ef\u80fd\u8fdb\u5165D\u6001\u3002\u4f8b\u5982&#xff0c;\u5f53\u7a0b\u5e8f\u7b49\u5f85\u786c\u76d8\u8bfb\u53d6\u6570\u636e\u65f6&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u65e0\u6cd5\u4e2d\u65ad\u8fd9\u4e00\u8fc7\u7a0b&#xff0c;\u76f4\u5230\u786c\u76d8\u5b8c\u6210\u6570\u636e\u4f20\u8f93\u3002<\/p>\n<\/li>\n<li>\n<p>\u7cfb\u7edf\u5185\u6838\u7684\u67d0\u4e9b\u64cd\u4f5c&#xff08;\u5982\u8bbf\u95ee\u786c\u4ef6\u3001\u7b49\u5f85\u9a71\u52a8\u7a0b\u5e8f\u54cd\u5e94\u7b49&#xff09;\u53ef\u80fd\u4f1a\u4f7f\u8fdb\u7a0b\u8fdb\u5165D\u6001\u3002\u6b64\u65f6&#xff0c;\u5373\u4f7f\u4f60\u53d1\u9001 kill \u4fe1\u53f7&#xff0c;\u8fdb\u7a0b\u4e5f\u65e0\u6cd5\u54cd\u5e94&#xff0c;\u53ea\u80fd\u7b49\u5230\u786c\u4ef6\u64cd\u4f5c\u5b8c\u6210\u3002<\/p>\n<\/li>\n<li>\n<p>\u573a\u666f\u793a\u4f8b&#xff1a;\u8fdb\u7a0b\u5728\u8fdb\u884c\u78c1\u76d8\u7684\u6df1\u5ea6\u8bfb\u53d6&#xff08;\u5982\u6587\u4ef6\u7cfb\u7edf\u64cd\u4f5c&#xff09;\u65f6&#xff0c;\u53ef\u80fd\u4f1a\u8fdb\u5165D\u6001&#xff0c;\u5982\u679c\u786c\u76d8\u5728\u6267\u884c\u64cd\u4f5c\u65f6\u975e\u5e38\u6162&#xff0c;\u8fdb\u7a0b\u53ef\u80fd\u4f1a\u957f\u65f6\u95f4\u5904\u4e8e\u6b64\u72b6\u6001\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>&#x1f58b;\ufe0f \u8fdb\u7a0b\u6682\u505c T \u72b6\u6001<\/h4>\n<p>\u8fdb\u7a0b\u7684**\u6682\u505c\u72b6\u6001&#xff08;T\u72b6\u6001&#xff09;**\u662f\u901a\u8fc7\u64cd\u4f5c\u7cfb\u7edf\u53d1\u51fa\u7684\u6682\u505c\u4fe1\u53f7\u8ba9\u8fdb\u7a0b\u6682\u65f6\u505c\u6b62\u8fd0\u884c\u7684\u72b6\u6001&#xff0c;\u901a\u5e38\u662f\u51fa\u4e8e\u8c03\u8bd5\u6216\u8005\u9700\u8981\u4e34\u65f6\u505c\u6b62\u8fdb\u7a0b\u7684\u76ee\u7684\u3002<\/p>\n<p>\u5982\u4f55\u8fdb\u5165T\u72b6\u6001&#xff1a;<\/p>\n<p>\u4f60\u63d0\u5230\u7684\u547d\u4ee4&#xff1a;<\/p>\n<ul>\n<li>\n<p>kill -19 PID \u53d1\u9001 SIGSTOP \u4fe1\u53f7&#xff0c;\u8be5\u4fe1\u53f7\u5c06\u4f7f\u8fdb\u7a0b\u8fdb\u5165\u6682\u505c\u72b6\u6001&#xff08;T\u72b6\u6001&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>kill -18 PID \u53d1\u9001 SIGCONT \u4fe1\u53f7&#xff0c;\u8be5\u4fe1\u53f7\u4f1a\u8ba9\u6682\u505c\u7684\u8fdb\u7a0b\u6062\u590d\u6267\u884c\u3002<\/p>\n<\/li>\n<\/ul>\n<p>T \u72b6\u6001\u7684\u5de5\u4f5c\u539f\u7406&#xff1a;<\/p>\n<li>\n<p>\u8fdb\u5165 T \u72b6\u6001&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u5f53\u6211\u4eec\u4f7f\u7528 kill -19 PID \u547d\u4ee4\u65f6&#xff0c;\u5b9e\u9645\u4e0a\u662f\u5411\u6307\u5b9a\u8fdb\u7a0b\u53d1\u9001\u4e86 SIGSTOP \u4fe1\u53f7&#xff0c;\u544a\u8bc9\u64cd\u4f5c\u7cfb\u7edf\u5c06\u8be5\u8fdb\u7a0b\u6682\u505c\u3002\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u5c06\u8be5\u8fdb\u7a0b\u7684\u72b6\u6001\u4ece\u8fd0\u884c\u4e2d&#xff08;R&#xff0c;<span style=\"color:#be191c\">R\u770b\u4e0d\u5230\u4e00\u822c\u662fS&#043;<\/span>&#xff09;\u8f6c\u6362\u4e3a\u6682\u505c&#xff08;T&#xff09;\u3002\u6682\u505c\u72b6\u6001\u7684\u8fdb\u7a0b\u4e0d\u4f1a\u5360\u7528 CPU \u8d44\u6e90&#xff0c;\u4f46\u5b83\u7684\u6240\u6709\u8d44\u6e90&#xff08;\u5185\u5b58\u3001\u6587\u4ef6\u63cf\u8ff0\u7b26\u7b49&#xff09;\u4f9d\u7136\u4fdd\u6301&#xff0c;\u76f4\u5230\u5b83\u88ab\u6062\u590d\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6062\u590d\u8fdb\u7a0b&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u4f7f\u7528 kill -18 PID \u547d\u4ee4\u53d1\u9001 SIGCONT \u4fe1\u53f7&#xff0c;\u53ef\u4ee5\u8ba9\u6682\u505c\u7684\u8fdb\u7a0b\u6062\u590d\u6267\u884c\u3002\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u5c06\u6682\u505c\u72b6\u6001\u7684\u8fdb\u7a0b\u91cd\u65b0\u8c03\u5ea6&#xff0c;\u4f7f\u5176\u7ee7\u7eed\u4ece\u4e2d\u65ad\u7684\u5730\u65b9\u6267\u884c\u3002\u6062\u590d\u540e&#xff0c;\u8fdb\u7a0b\u7684\u72b6\u6001\u901a\u5e38\u4f1a\u53d8\u4e3a\u8fd0\u884c\u72b6\u6001&#xff08;R&#xff09;\u3002<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"625\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250426022648-680c44686dd41.png\" width=\"1001\" \/><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<p>\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u00a0kill -18 PID\u00a0\u4f7f\u00a0\u8fdb\u7a0b\u00a0\u6062\u590d\u8fd0\u884c&#xff0c;\u6062\u590d\u540e\u7684\u00a0\u8fdb\u7a0b\u00a0\u5728\u540e\u53f0\u8fd0\u884c<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"295\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250426022648-680c4468b857b.png\" width=\"1002\" \/><span style=\"color:#b95514\">\u00a0\u6ce8\u610f&#xff1a;\u00a0\u8fdb\u7a0b\u00a0\u5728\u540e\u53f0\u8fd0\u884c\u65f6&#xff0c;\u662f\u65e0\u6cd5\u901a\u8fc7\u00a0ctrl&#043;c\u00a0\u6307\u4ee4\u7ec8\u6b62\u7684&#xff0c;\u53ea\u80fd\u901a\u8fc7\u00a0kill -9 PID\u00a0\u7ec8\u6b62\u3002<\/span><\/p>\n<p><span style=\"color:#b95514\">S&#043;\u662f\u5728\u524d\u53f0\u8fd0\u884c\u7684&#xff0c;\u53ef\u4ee5\u7528<\/span>ctrl&#043;c&#xff0c;\u800cS\u5728\u540e\u53f0\u8fd0\u884c\u53ea\u80fd\u7528Kill -9 PID \u6740\u6b7b\u3002<\/p>\n<h5>\u4f7f\u7528\u573a\u666f&#xff1a;<\/h5>\n<ul>\n<li>\n<p>\u8c03\u8bd5&#xff1a; \u5728\u8c03\u8bd5\u7a0b\u5e8f\u65f6&#xff0c;\u53ef\u80fd\u9700\u8981\u6682\u505c\u8fdb\u7a0b\u7684\u6267\u884c&#xff0c;\u4ee5\u4fbf\u68c0\u67e5\u5f53\u524d\u7684\u7a0b\u5e8f\u72b6\u6001\u6216\u4fee\u6539\u67d0\u4e9b\u53d8\u91cf\u3002\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u901a\u8fc7 kill -19 \u6682\u505c\u8fdb\u7a0b&#xff0c;\u7136\u540e\u4f7f\u7528\u8c03\u8bd5\u5de5\u5177&#xff08;\u5982 GDB&#xff09;\u67e5\u770b\u7a0b\u5e8f\u7684\u5f53\u524d\u5806\u6808\u3001\u5185\u5b58\u3001\u53d8\u91cf\u7b49\u72b6\u6001\u3002<\/p>\n<\/li>\n<li>\n<p>\u7cfb\u7edf\u8d44\u6e90\u7ba1\u7406&#xff1a; \u5728\u7cfb\u7edf\u8d1f\u8f7d\u8fc7\u9ad8\u65f6&#xff0c;\u7ba1\u7406\u5458\u53ef\u80fd\u4f1a\u9009\u62e9\u6682\u505c\u67d0\u4e9b\u4e0d\u91cd\u8981\u7684\u8fdb\u7a0b&#xff0c;\u4ee5\u91ca\u653e CPU \u65f6\u95f4\u7ed9\u9ad8\u4f18\u5148\u7ea7\u4efb\u52a1\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b&#xff0c;\u6682\u505c\u67d0\u4e9b\u8fdb\u7a0b\u540e\u53ef\u4ee5\u6062\u590d\u5b83\u4eec&#xff0c;\u907f\u514d\u7cfb\u7edf\u51fa\u73b0\u6027\u80fd\u74f6\u9888\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e34\u65f6\u505c\u6b62\u67d0\u4e9b\u8fdb\u7a0b&#xff1a; \u6709\u65f6\u5019\u6211\u4eec\u9700\u8981\u4e34\u65f6\u505c\u6b62\u67d0\u4e9b\u8fdb\u7a0b&#xff08;\u4f8b\u5982\u957f\u65f6\u95f4\u8fd0\u884c\u7684\u670d\u52a1\u3001\u540e\u53f0\u4efb\u52a1\u7b49&#xff09;&#xff0c;\u4f46\u53c8\u4e0d\u60f3\u5b8c\u5168\u7ec8\u6b62\u5b83\u4eec&#xff0c;\u907f\u514d\u4ee5\u540e\u518d\u91cd\u542f\u6216\u8005\u91cd\u65b0\u521b\u5efa\u65f6\u6d6a\u8d39\u65f6\u95f4\u3002\u6682\u505c\u8fdb\u7a0b\u4f1a\u8282\u7701\u7cfb\u7edf\u8d44\u6e90&#xff0c;\u76f4\u5230\u6062\u590d\u65f6\u5b83\u4eec\u4f1a\u7ee7\u7eed\u8fd0\u884c\u3002<\/p>\n<\/li>\n<\/ul>\n<p>T \u72b6\u6001\u7684\u5f71\u54cd\u548c\u98ce\u9669&#xff1a;<\/p>\n<li>\n<p>\u4f18\u70b9&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u7075\u6d3b\u6027&#xff1a; \u8fdb\u7a0b\u6682\u505c\u5e76\u4e0d\u610f\u5473\u7740\u8fdb\u7a0b\u5b8c\u5168\u7ec8\u6b62&#xff0c;\u6240\u6709\u8d44\u6e90&#xff08;\u5982\u5185\u5b58&#xff09;\u4ecd\u7136\u4fdd\u7559\u3002\u8fd9\u6837\u505a\u53ef\u4ee5\u907f\u514d\u8fdb\u7a0b\u7684\u91cd\u65b0\u521d\u59cb\u5316\u6216\u91cd\u542f&#xff0c;\u63d0\u9ad8\u7cfb\u7edf\u8fd0\u884c\u6548\u7387\u3002<\/p>\n<\/li>\n<li>\n<p>\u8c03\u8bd5\u4fbf\u5229&#xff1a; \u5728\u8c03\u8bd5\u671f\u95f4&#xff0c;\u6211\u4eec\u53ef\u4ee5\u6682\u505c\u8fdb\u7a0b&#xff0c;\u68c0\u67e5\u7a0b\u5e8f\u7684\u72b6\u6001&#xff0c;\u7136\u540e\u7ee7\u7eed\u6267\u884c\u7a0b\u5e8f&#xff0c;\u8fd9\u5bf9\u4e8e\u6392\u67e5\u95ee\u9898\u6216\u9519\u8bef\u975e\u5e38\u6709\u5e2e\u52a9\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u7f3a\u70b9&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u65e0\u54cd\u5e94&#xff1a; \u4e00\u65e6\u8fdb\u7a0b\u8fdb\u5165\u6682\u505c\u72b6\u6001&#xff0c;\u5b83\u5c31\u4e0d\u518d\u54cd\u5e94\u4efb\u4f55\u8f93\u5165\u6216\u6267\u884c\u4efb\u4f55\u4efb\u52a1&#xff0c;\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u7684\u67d0\u4e9b\u529f\u80fd\u6682\u505c\u6216\u5931\u6548\u3002\u5982\u679c\u6709\u591a\u4e2a\u8fdb\u7a0b\u88ab\u6682\u505c&#xff0c;\u4f1a\u5f71\u54cd\u5230\u6574\u4e2a\u7cfb\u7edf\u7684\u54cd\u5e94\u901f\u5ea6\u3002<\/p>\n<\/li>\n<li>\n<p>\u8d44\u6e90\u5360\u7528&#xff1a; \u867d\u7136\u6682\u505c\u72b6\u6001\u7684\u8fdb\u7a0b\u4e0d\u6d88\u8017 CPU&#xff0c;\u4f46\u5b83\u4ecd\u7136\u5360\u7528\u7cfb\u7edf\u7684\u5176\u4ed6\u8d44\u6e90&#xff08;\u5982\u5185\u5b58\u3001\u6587\u4ef6\u53e5\u67c4\u7b49&#xff09;\u3002\u5982\u679c\u5927\u91cf\u8fdb\u7a0b\u90fd\u5904\u4e8e\u6682\u505c\u72b6\u6001&#xff0c;\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u8d44\u6e90\u7d27\u5f20\u3002<\/p>\n<\/li>\n<li>\n<p>\u53ef\u80fd\u5f71\u54cd\u7528\u6237\u4f53\u9a8c&#xff1a; \u5982\u679c\u4f60\u6682\u505c\u7684\u662f\u4e00\u4e2a\u7528\u6237\u4ea4\u4e92\u7684\u8fdb\u7a0b&#xff08;\u6bd4\u5982\u670d\u52a1\u7a0b\u5e8f\u3001\u540e\u53f0\u5904\u7406\u4efb\u52a1\u7b49&#xff09;&#xff0c;\u53ef\u80fd\u4f1a\u9020\u6210\u7528\u6237\u65e0\u6cd5\u83b7\u5f97\u5b9e\u65f6\u53cd\u9988&#xff0c;\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<p>\u4e3e\u4e2a\u4f8b\u5b50&#xff1a;<\/p>\n<p>\u5047\u8bbe\u4f60\u6b63\u5728\u8fd0\u884c\u4e00\u4e2a\u8ba1\u7b97\u5bc6\u96c6\u578b\u7684\u7a0b\u5e8f&#xff0c;\u800c\u4f60\u7684\u670d\u52a1\u5668\u7684CPU\u4f7f\u7528\u7387\u5df2\u7ecf\u5f88\u9ad8&#xff0c;\u4f60\u5e0c\u671b\u6682\u65f6\u8ba9\u5b83\u505c\u6b62&#xff0c;\u91ca\u653eCPU\u7ed9\u5176\u4ed6\u4efb\u52a1\u5904\u7406\u3002\u6b64\u65f6&#xff0c;\u4f60\u53ef\u4ee5\u901a\u8fc7 kill -19 &lt;pid&gt; \u547d\u4ee4\u6682\u505c\u5b83&#xff0c;\u7b49\u5230CPU\u8d1f\u8f7d\u4e0b\u964d\u540e&#xff0c;\u518d\u901a\u8fc7 kill -18 &lt;pid&gt; \u6062\u590d\u8be5\u8fdb\u7a0b\u3002<\/p>\n<p>\u53e6\u4e00\u79cd\u60c5\u51b5\u662f\u5728\u8c03\u8bd5\u4e00\u4e2a\u7a0b\u5e8f\u65f6&#xff0c;\u4f60\u53ef\u80fd\u5e0c\u671b\u5728\u67d0\u4e2a\u7279\u5b9a\u7684\u5730\u65b9\u6682\u505c\u6267\u884c&#xff08;\u4f8b\u5982\u67d0\u4e2a\u51fd\u6570\u6216\u67d0\u4e2a\u5faa\u73af&#xff09;&#xff0c;\u800c\u901a\u8fc7\u6682\u505c\u548c\u6062\u590d\u8fdb\u7a0b&#xff0c;\u4f60\u53ef\u4ee5\u68c0\u67e5\u7a0b\u5e8f\u72b6\u6001\u6216\u53d8\u91cf&#xff0c;\u8fdb\u884c\u6545\u969c\u6392\u67e5<\/p>\n<h4>&#x1f58b;\ufe0f \u50f5\u5c38\u8fdb\u7a0b&#xff08;Zombie&#xff09;<\/h4>\n<h6>\u5e94\u7528\u573a\u666f&#xff1a;<\/h6>\n<p>\u50f5\u5c38\u8fdb\u7a0b\u662f\u5728\u8fdb\u7a0b\u7ec8\u6b62\u540e&#xff0c;\u7236\u8fdb\u7a0b\u5c1a\u672a\u56de\u6536\u5176\u9000\u51fa\u72b6\u6001\u800c\u7559\u4e0b\u7684\u8fdb\u7a0b\u3002\u50f5\u5c38\u8fdb\u7a0b\u6ca1\u6709\u5b9e\u9645\u7684\u6267\u884c\u4efb\u52a1&#xff0c;\u5b83\u4eec\u53ea\u662f\u5360\u7528\u4e86\u7cfb\u7edf\u7684PID\u548c\u8d44\u6e90&#xff0c;\u7b49\u5f85\u7236\u8fdb\u7a0b\u8bfb\u53d6\u5b83\u4eec\u7684\u9000\u51fa\u72b6\u6001\u5e76\u56de\u6536\u8d44\u6e90\u3002<\/p>\n<p>\u5f53\u4e00\u4e2a\u5b50\u8fdb\u7a0b\u7ec8\u6b62\u65f6&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u5c06\u5b83\u7684\u9000\u51fa\u72b6\u6001\u4fdd\u7559\u5728\u8fdb\u7a0b\u8868\u4e2d&#xff0c;<span style=\"color:#be191c\">\u76f4\u5230\u7236\u8fdb\u7a0b\u901a\u8fc7 wait() \u6216 waitpid() \u6765\u8bfb\u53d6\u8be5\u72b6\u6001<\/span>\u3002\u5982\u679c\u7236\u8fdb\u7a0b\u6ca1\u6709\u53ca\u65f6\u56de\u6536&#xff0c;\u5b50\u8fdb\u7a0b\u5c31\u4f1a\u6210\u4e3a\u50f5\u5c38\u8fdb\u7a0b\u3002<\/p>\n<p>\u00a0\u6211\u4eec\u53ef\u4ee5\u5229\u7528\u00a0fork()\u00a0\u51fd\u6570\u81ea\u5df1\u521b\u5efa\u00a0\u7236\u5b50\u8fdb\u7a0b\u00a0\u5173\u7cfb&#xff0c;\u89c2\u5bdf\u5230\u8fd9\u4e00\u73b0\u8c61&#xff1a;<\/p>\n<p>#include&lt;iostream&gt;<br \/>\nusing namespace std;<\/p>\n<p>#include&lt;unistd.h&gt;<br \/>\n#include&lt;sys\/types.h&gt;<\/p>\n<p>int main()<br \/>\n{<br \/>\n  pid_t ret &#061; fork();<br \/>\n  if(ret &#061;&#061; 0)<br \/>\n  {<br \/>\n    while(1)<br \/>\n    {<br \/>\n      cout &lt;&lt; &#034;I&#039;m son process, my PID: &#034; &lt;&lt; getpid() &lt;&lt; &#034; PPID: &#034; &lt;&lt; getppid() &lt;&lt; endl;<br \/>\n      sleep(1);<br \/>\n    }<br \/>\n  }<br \/>\n  else if(ret &gt; 0)<br \/>\n  {<br \/>\n    while(1)<br \/>\n    {<br \/>\n      cout &lt;&lt; &#034;I&#039;m father process, my PID: &#034; &lt;&lt; getpid() &lt;&lt; &#034; PPID: &#034; &lt;&lt; getppid() &lt;&lt; endl;<br \/>\n      sleep(1);<br \/>\n    }<br \/>\n  }<br \/>\n  else<br \/>\n  {<br \/>\n    while(1)<br \/>\n    {<br \/>\n      cout &lt;&lt; &#034;Make son process fail!&#034; &lt;&lt; endl;<br \/>\n      sleep(1);<br \/>\n    }<br \/>\n  }<\/p>\n<p>  return 0;<br \/>\n}<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"712\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250426022648-680c4468f0387.png\" width=\"876\" \/><\/p>\n<p>\u6b64\u65f6\u8f93\u5165\u6307\u4ee4\u00a0kill -9 PID\u00a0\u5373\u00a0kill -9 28315\u00a0\u7ec8\u6b62\u00a0\u5b50\u8fdb\u7a0b \u518d\u6b21\u67e5\u770b\u8fdb\u7a0b\u72b6\u6001&#xff1a;<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"330\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250426022649-680c44694b198.png\" width=\"1012\" \/>\u00a0\u5371\u5bb3&#xff1a;<\/p>\n<li>\n<p>\u8d44\u6e90\u5360\u7528&#xff1a;\u5c3d\u7ba1\u50f5\u5c38\u8fdb\u7a0b\u4e0d\u518d\u6267\u884c\u4efb\u52a1&#xff0c;\u4f46\u5b83\u4eec\u4ecd\u7136\u5360\u636e\u7740PID\u7b49\u8d44\u6e90\u3002\u5982\u679c\u7cfb\u7edf\u4e2d\u5b58\u5728\u5927\u91cf\u50f5\u5c38\u8fdb\u7a0b&#xff0c;\u5b83\u4eec\u4f1a\u5bfc\u81f4\u8fdb\u7a0b\u8868\u7684\u8d44\u6e90\u88ab\u5360\u6ee1&#xff0c;\u5f71\u54cd\u7cfb\u7edf\u7684\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n<\/li>\n<li>\n<p>\u5185\u5b58\u6cc4\u6f0f&#xff1a;\u672a\u53ca\u65f6\u56de\u6536\u7684\u50f5\u5c38\u8fdb\u7a0b\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f&#xff0c;\u589e\u52a0\u7cfb\u7edf\u7684\u8d1f\u62c5&#xff0c;\u5f71\u54cd\u7cfb\u7edf\u7a33\u5b9a\u6027\u3002<\/p>\n<\/li>\n<p>\u00a0\u4e2a\u4eba\u601d\u8003&#xff1a;<\/p>\n<p>\u64cd\u4f5c\u7cfb\u7edf\u901a\u8fc7\u5728\u8fdb\u7a0b\u7ec8\u6b62\u65f6\u81ea\u52a8\u56de\u6536\u8d44\u6e90\u6216\u901a\u8fc7\u7236\u8fdb\u7a0b\u7684 wait() \u7cfb\u7edf\u8c03\u7528\u56de\u6536\u50f5\u5c38\u8fdb\u7a0b&#xff0c;\u80fd\u591f\u6709\u6548\u5730\u51cf\u5c11\u50f5\u5c38\u8fdb\u7a0b\u7684\u51fa\u73b0\u3002\u7136\u800c&#xff0c;\u5982\u679c\u7236\u8fdb\u7a0b\u957f\u65f6\u95f4\u4e0d\u56de\u6536\u5b50\u8fdb\u7a0b\u7684\u9000\u51fa\u72b6\u6001&#xff0c;\u5c31\u4f1a\u5bfc\u81f4\u8d44\u6e90\u7684\u6d6a\u8d39\u3002\u56e0\u6b64&#xff0c;\u8bbe\u8ba1\u5408\u7406\u7684\u8fdb\u7a0b\u7ba1\u7406\u673a\u5236\u53ef\u4ee5\u5e2e\u52a9\u7cfb\u7edf\u907f\u514d\u50f5\u5c38\u8fdb\u7a0b\u7684\u79ef\u7d2f\u3002<\/p>\n<h4>&#x1f58b;\ufe0f\u5b64\u513f\u8fdb\u7a0b<\/h4>\n<p>\u5b64\u513f\u8fdb\u7a0b\u662f\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u7684\u4e00\u79cd\u7279\u6b8a\u8fdb\u7a0b\u72b6\u6001&#xff0c;<span style=\"color:#b95514\">\u6307\u7684\u662f\u7236\u8fdb\u7a0b\u5728\u5b50\u8fdb\u7a0b\u8fd0\u884c\u671f\u95f4\u9000\u51fa\u6216\u7ec8\u6b62&#xff0c;\u5bfc\u81f4\u8be5\u5b50\u8fdb\u7a0b\u6ca1\u6709\u7236\u8fdb\u7a0b\u7684\u72b6\u6001\u3002<\/span>\u6b64\u65f6&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u81ea\u52a8\u5c06\u8fd9\u4e2a\u5b50\u8fdb\u7a0b\u201c\u9886\u517b\u201d&#xff0c;<span style=\"color:#ed7976\">\u5e76\u5c06\u5b83\u7684\u7236\u8fdb\u7a0b ID&#xff08;PID&#xff09;\u4fee\u6539\u4e3a 1&#xff0c;\u5373 init \u8fdb\u7a0b&#xff08;\u5728 Linux \u4e2d\u4e3a\u7cfb\u7edf\u7684\u7b2c\u4e00\u4e2a\u8fdb\u7a0b&#xff09;\u3002<\/span><\/p>\n<p>\u5b64\u513f\u8fdb\u7a0b\u7684\u5f62\u6210&#xff1a;<\/p>\n<p>\u5b64\u513f\u8fdb\u7a0b\u7684\u5f62\u6210\u901a\u5e38\u662f\u5728\u4ee5\u4e0b\u4e24\u79cd\u60c5\u51b5\u53d1\u751f\u65f6&#xff1a;<\/p>\n<li>\n<p>\u7236\u8fdb\u7a0b\u63d0\u524d\u7ec8\u6b62&#xff1a;\u7236\u8fdb\u7a0b\u5728\u5b50\u8fdb\u7a0b\u8fd8\u5728\u8fd0\u884c\u65f6\u7ed3\u675f&#xff0c;\u5bfc\u81f4\u5b50\u8fdb\u7a0b\u5931\u53bb\u4e86\u539f\u672c\u7684\u7236\u8fdb\u7a0b\u3002<\/p>\n<\/li>\n<li>\n<p>\u7236\u8fdb\u7a0b\u4e0d\u518d\u7ba1\u7406\u5b50\u8fdb\u7a0b&#xff1a;\u7236\u8fdb\u7a0b\u867d\u7136\u672a\u7ec8\u6b62&#xff0c;\u4f46\u53ef\u80fd\u9000\u51fa\u4e86\u67d0\u4e9b\u5de5\u4f5c\u8303\u56f4&#xff0c;\u6216\u8005\u672a\u80fd\u5904\u7406\u5b50\u8fdb\u7a0b\u7684\u9000\u51fa&#xff0c;\u5bfc\u81f4\u7cfb\u7edf\u5c06\u5b50\u8fdb\u7a0b\u91cd\u65b0\u5206\u914d\u7ed9 init&#xff08;PID &#061; 1&#xff09;\u8fdb\u7a0b\u3002<\/p>\n<\/li>\n<p>\u5b64\u513f\u8fdb\u7a0b\u7684\u5904\u7406\u65b9\u5f0f&#xff1a;<\/p>\n<ul>\n<li>\n<p>OS\u7684\u5904\u7406&#xff1a;\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u901a\u8fc7\u5c06\u5b64\u513f\u8fdb\u7a0b\u7684\u7236\u8fdb\u7a0b\u8bbe\u4e3a init \u8fdb\u7a0b\u6765\u201c\u9886\u517b\u201d\u5b83\u3002\u8fd9\u662f\u56e0\u4e3a init \u8fdb\u7a0b\u662f\u64cd\u4f5c\u7cfb\u7edf\u7684\u6839\u8fdb\u7a0b&#xff0c;\u8d1f\u8d23\u7ba1\u7406\u6240\u6709\u7684\u5b50\u8fdb\u7a0b\u3002init \u8fdb\u7a0b\u8d1f\u8d23\u56de\u6536\u5b64\u513f\u8fdb\u7a0b&#xff0c;\u786e\u4fdd\u5b83\u4eec\u6700\u7ec8\u80fd\u591f\u88ab\u6e05\u7406&#xff0c;\u907f\u514d\u5185\u5b58\u6cc4\u6f0f\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b50\u8fdb\u7a0b\u7684\u72b6\u6001&#xff1a;\u4e00\u65e6\u7236\u8fdb\u7a0b\u9000\u51fa&#xff0c;\u5b50\u8fdb\u7a0b\u8fdb\u5165\u5b64\u513f\u72b6\u6001&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u91cd\u65b0\u5b89\u6392\u8be5\u8fdb\u7a0b\u7684\u7236\u8fdb\u7a0b\u4e3a init \u8fdb\u7a0b\u3002\u5373\u4fbf\u6ca1\u6709\u539f\u7236\u8fdb\u7a0b&#xff0c;\u5b64\u513f\u8fdb\u7a0b\u4f9d\u7136\u53ef\u4ee5\u6b63\u5e38\u8fd0\u884c&#xff0c;\u76f4\u5230\u7ed3\u675f\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u00a0\u5b64\u513f\u8fdb\u7a0b\u7684\u4f8b\u5b50&#xff1a;<\/p>\n<p>\u5047\u8bbe\u6709\u4ee5\u4e0b\u7684\u7a0b\u5e8f\u903b\u8f91&#xff1a;<\/p>\n<li>\n<p>\u7236\u8fdb\u7a0b\u521b\u5efa\u4e00\u4e2a\u5b50\u8fdb\u7a0b\u3002<\/p>\n<\/li>\n<li>\n<p>\u7236\u8fdb\u7a0b\u5728\u5b50\u8fdb\u7a0b\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u9000\u51fa\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b50\u8fdb\u7a0b\u7ee7\u7eed\u6267\u884c&#xff0c;\u4f46\u7531\u4e8e\u7236\u8fdb\u7a0b\u5df2\u7ecf\u7ed3\u675f&#xff0c;\u5b83\u5c31\u53d8\u6210\u4e86\u5b64\u513f\u8fdb\u7a0b&#xff0c;\u7236\u8fdb\u7a0b ID \u88ab\u8bbe\u7f6e\u4e3a 1&#xff08;\u5373 init&#xff09;\u3002<\/p>\n<p> #include &lt;iostream&gt;<br \/>\n#include &lt;unistd.h&gt;<\/p>\n<p>int main() {<br \/>\n    pid_t pid &#061; fork();<\/p>\n<p>    if (pid &gt; 0) {<br \/>\n        \/\/ \u7236\u8fdb\u7a0b<br \/>\n        std::cout &lt;&lt; &#034;Parent process is terminating. PID: &#034; &lt;&lt; getpid() &lt;&lt; std::endl;<br \/>\n        sleep(2);  \/\/ \u7b49\u5f85\u5b50\u8fdb\u7a0b<br \/>\n        std::cout &lt;&lt; &#034;Parent process exited.&#034; &lt;&lt; std::endl;<br \/>\n    } else if (pid &#061;&#061; 0) {<br \/>\n        \/\/ \u5b50\u8fdb\u7a0b<br \/>\n        std::cout &lt;&lt; &#034;Child process is running. PID: &#034; &lt;&lt; getpid() &lt;&lt; &#034; Parent PID: &#034; &lt;&lt; getppid() &lt;&lt; std::endl;<br \/>\n        sleep(5);  \/\/ \u5047\u88c5\u5b50\u8fdb\u7a0b\u5728\u505a\u67d0\u4e9b\u64cd\u4f5c<br \/>\n        std::cout &lt;&lt; &#034;Child process finished. PID: &#034; &lt;&lt; getpid() &lt;&lt; &#034; Parent PID: &#034; &lt;&lt; getppid() &lt;&lt; std::endl;<br \/>\n    } else {<br \/>\n        std::cout &lt;&lt; &#034;Fork failed!&#034; &lt;&lt; std::endl;<br \/>\n    }<\/p>\n<p>    return 0;<br \/>\n}<\/p>\n<p>\u5b64\u513f\u8fdb\u7a0b\u7684\u5371\u5bb3&#xff1a;<\/p>\n<p>\u5b64\u513f\u8fdb\u7a0b\u672c\u8eab\u5e76\u4e0d\u4f1a\u76f4\u63a5\u9020\u6210\u8d44\u6e90\u6cc4\u6f0f&#xff0c;\u56e0\u4e3a\u5b83\u4f1a\u88ab init \u8fdb\u7a0b\u9886\u517b\u5e76\u6700\u7ec8\u6e05\u7406\u3002\u4f46\u5982\u679c\u7cfb\u7edf\u4e2d\u9891\u7e41\u4ea7\u751f\u5b64\u513f\u8fdb\u7a0b\u4e14\u6ca1\u6709\u53ca\u65f6\u56de\u6536&#xff0c;\u5b83\u4eec\u53ef\u80fd\u4f1a\u6210\u4e3a\u7cfb\u7edf\u4e2d\u50f5\u5c38\u8fdb\u7a0b\u7684\u6765\u6e90&#xff0c;\u5bfc\u81f4\u7cfb\u7edf\u7684 PID \u7a7a\u95f4\u88ab\u5360\u6ee1&#xff0c;\u4ece\u800c\u5f71\u54cd\u65b0\u8fdb\u7a0b\u7684\u521b\u5efa\u3002<\/p>\n<\/li>\n<h4>&#x1f58b;\ufe0f \u5b88\u62a4\u8fdb\u7a0b&#xff08;Daemon&#xff09;<\/h4>\n<h5>\u5e94\u7528\u573a\u666f&#xff1a;<\/h5>\n<p>\u5b88\u62a4\u8fdb\u7a0b\u662f\u90a3\u4e9b\u5728\u540e\u53f0\u8fd0\u884c&#xff0c;\u901a\u5e38\u4e0d\u4e0e\u7528\u6237\u76f4\u63a5\u4ea4\u4e92\u7684\u8fdb\u7a0b\u3002\u5b83\u4eec\u901a\u5e38\u8d1f\u8d23\u5904\u7406\u957f\u671f\u8fd0\u884c\u7684\u4efb\u52a1&#xff0c;\u5982\u5b9a\u65f6\u4efb\u52a1\u3001\u65e5\u5fd7\u8bb0\u5f55\u3001\u7cfb\u7edf\u76d1\u63a7\u7b49\u3002\u4f8b\u5982&#xff0c;cron \u7528\u4e8e\u6267\u884c\u5b9a\u65f6\u4efb\u52a1&#xff0c;syslog \u8d1f\u8d23\u7cfb\u7edf\u65e5\u5fd7\u7ba1\u7406\u3002<\/p>\n<p>\u5b88\u62a4\u8fdb\u7a0b\u4f1a\u5728\u7cfb\u7edf\u542f\u52a8\u65f6\u542f\u52a8&#xff0c;\u5e76\u4f1a\u4e00\u76f4\u4fdd\u6301\u8fd0\u884c&#xff0c;\u76f4\u5230\u7cfb\u7edf\u5173\u95ed\u6216\u8fdb\u7a0b\u88ab\u663e\u5f0f\u7ec8\u6b62\u3002\u5b83\u4eec\u4e0d\u4f1a\u88ab\u7ec8\u7aef\u5173\u95ed\u6216\u63a7\u5236&#xff0c;\u56e0\u6b64\u5e38\u5e38\u5728\u540e\u53f0\u6084\u65e0\u58f0\u606f\u5730\u5de5\u4f5c\u3002<\/p>\n<p>\u597d\u5904&#xff1a;<\/p>\n<li>\n<p>\u540e\u53f0\u670d\u52a1\u652f\u6301&#xff1a;\u5b88\u62a4\u8fdb\u7a0b\u80fd\u591f\u786e\u4fdd\u540e\u53f0\u4efb\u52a1\u7684\u6301\u7eed\u8fd0\u884c&#xff0c;\u4fdd\u8bc1\u7cfb\u7edf\u6b63\u5e38\u8fd0\u884c\u3002\u4f8b\u5982&#xff0c;\u5b9a\u65f6\u5907\u4efd\u3001\u7cfb\u7edf\u65e5\u5fd7\u6536\u96c6\u3001\u76d1\u63a7\u4efb\u52a1\u7b49\u90fd\u4f9d\u8d56\u5b88\u62a4\u8fdb\u7a0b\u3002<\/p>\n<\/li>\n<li>\n<p>\u63d0\u9ad8\u7cfb\u7edf\u7a33\u5b9a\u6027&#xff1a;\u5b88\u62a4\u8fdb\u7a0b\u901a\u5e38\u8d1f\u8d23\u5173\u952e\u4efb\u52a1\u7684\u6267\u884c&#xff0c;\u786e\u4fdd\u7cfb\u7edf\u8d44\u6e90\u7684\u6301\u7eed\u7ba1\u7406\u548c\u670d\u52a1\u7684\u6b63\u5e38\u63d0\u4f9b\u3002<\/p>\n<\/li>\n<p>\u5371\u5bb3&#xff1a;<\/p>\n<li>\n<p>\u8d44\u6e90\u6d88\u8017&#xff1a;\u5b88\u62a4\u8fdb\u7a0b\u901a\u5e38\u4f1a\u6301\u7eed\u8fd0\u884c&#xff0c;\u5360\u7528\u7cfb\u7edf\u8d44\u6e90\u3002\u5982\u679c\u5b88\u62a4\u8fdb\u7a0b\u8bbe\u8ba1\u4e0d\u5f53&#xff0c;\u53ef\u80fd\u4f1a\u5bfc\u81f4\u8d44\u6e90\u6d6a\u8d39\u6216\u7cfb\u7edf\u8d1f\u8f7d\u8fc7\u9ad8\u3002<\/p>\n<\/li>\n<li>\n<p>\u8c03\u8bd5\u56f0\u96be&#xff1a;\u5b88\u62a4\u8fdb\u7a0b\u901a\u5e38\u6ca1\u6709\u7528\u6237\u754c\u9762&#xff0c;\u96be\u4ee5\u8fdb\u884c\u8c03\u8bd5\u3002\u5982\u679c\u5b88\u62a4\u8fdb\u7a0b\u51fa\u73b0\u95ee\u9898&#xff0c;\u53ef\u80fd\u9700\u8981\u901a\u8fc7\u65e5\u5fd7\u6216\u5176\u4ed6\u76d1\u63a7\u5de5\u5177\u624d\u80fd\u53d1\u73b0\u3002<\/p>\n<\/li>\n<p>\u4e2a\u4eba\u601d\u8003&#xff1a;<\/p>\n<p>\u5b88\u62a4\u8fdb\u7a0b\u5728\u7cfb\u7edf\u4e2d\u626e\u6f14\u7740\u6781\u5176\u91cd\u8981\u7684\u89d2\u8272&#xff0c;\u5c24\u5176\u662f\u5728\u670d\u52a1\u578b\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u3002\u5408\u7406\u8bbe\u8ba1\u548c\u7ba1\u7406\u5b88\u62a4\u8fdb\u7a0b\u7684\u8d44\u6e90\u6d88\u8017\u3001\u6027\u80fd\u76d1\u63a7&#xff0c;\u4ee5\u53ca\u65e5\u5fd7\u7ba1\u7406\u81f3\u5173\u91cd\u8981\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d&#xff0c;\u5f00\u53d1\u8005\u9700\u8981\u786e\u4fdd\u5b88\u62a4\u8fdb\u7a0b\u7684\u8d44\u6e90\u5229\u7528\u9ad8\u6548&#xff0c;\u907f\u514d\u51fa\u73b0\u65e0\u9650\u5faa\u73af\u3001\u5185\u5b58\u6cc4\u6f0f\u7b49\u95ee\u9898\u3002<\/p>\n<hr \/>\n<h4>1. \u963b\u585e&#xff08;Blocked&#xff09;\u72b6\u6001&#xff1a;<\/h4>\n<p>\u8fdb\u7a0b\u5728\u963b\u585e\u72b6\u6001\u4e0b&#xff0c;\u901a\u5e38\u662f\u56e0\u4e3a\u5b83\u6b63\u5728\u7b49\u5f85\u67d0\u4e9b\u8d44\u6e90\u7684\u5c31\u7eea&#xff0c;\u6bd4\u5982\u7b49\u5f85 I\/O \u64cd\u4f5c\u5b8c\u6210\u3001\u7b49\u5f85\u6587\u4ef6\u9501\u5b9a\u3001\u7b49\u5f85\u7f51\u7edc\u54cd\u5e94\u7b49\u3002\u8fdb\u7a0b\u5728\u8fd9\u4e2a\u72b6\u6001\u4e0b\u5e76\u4e0d\u4f1a\u5360\u7528 CPU \u65f6\u95f4&#xff0c;\u800c\u662f\u8fdb\u5165\u7b49\u5f85\u961f\u5217&#xff0c;\u76f4\u5230\u6240\u9700\u7684\u8d44\u6e90\u53d8\u5f97\u53ef\u7528&#xff0c;\u624d\u4f1a\u88ab\u64cd\u4f5c\u7cfb\u7edf\u91cd\u65b0\u8c03\u5ea6\u6267\u884c\u3002\u5305\u62ec&#xff08;S&#xff0c;D&#xff09;\u72b6\u6001\u3002<\/p>\n<h5>\u963b\u585e\u7684\u539f\u56e0&#xff1a;<\/h5>\n<ul>\n<li>\n<p>I\/O \u64cd\u4f5c&#xff1a;\u4f8b\u5982&#xff0c;\u8bfb\u53d6\u6587\u4ef6\u3001\u7f51\u7edc\u8bf7\u6c42\u3001\u786c\u76d8\u8bbf\u95ee\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p>\u8d44\u6e90\u7b49\u5f85&#xff1a;\u4f8b\u5982&#xff0c;\u7b49\u5f85 CPU \u65f6\u95f4\u7247\u3001\u5185\u5b58\u3001\u9501\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p>\u540c\u6b65\u7b49\u5f85&#xff1a;\u4f8b\u5982&#xff0c;\u7b49\u5f85\u5176\u4ed6\u8fdb\u7a0b\u7684\u4fe1\u53f7\u6216\u6d88\u606f\u3002<\/p>\n<\/li>\n<\/ul>\n<h5>\u963b\u585e\u72b6\u6001\u7684\u8868\u73b0&#xff1a;<\/h5>\n<ul>\n<li>\n<p>\u963b\u585e\u72b6\u6001\u7684\u8fdb\u7a0b\u4e0d\u80fd\u7ee7\u7eed\u6267\u884c&#xff0c;\u76f4\u5230\u5b83\u6240\u7b49\u5f85\u7684\u8d44\u6e90\u6216\u4e8b\u4ef6\u53d1\u751f\u3002<\/p>\n<\/li>\n<li>\n<p>\u963b\u585e\u7684\u8fdb\u7a0b\u8fdb\u5165\u64cd\u4f5c\u7cfb\u7edf\u7684\u7b49\u5f85\u961f\u5217&#xff0c;\u5e76\u4e0d\u5360\u7528 CPU \u8d44\u6e90\u3002<\/p>\n<\/li>\n<li>\n<p>\u64cd\u4f5c\u7cfb\u7edf\u6839\u636e\u4e0d\u540c\u7684\u7b49\u5f85\u7c7b\u578b&#xff08;I\/O\u3001\u9501\u7b49&#xff09;\u5c06\u8fdb\u7a0b\u6392\u5165\u4e0d\u540c\u7684\u961f\u5217\u3002<\/p>\n<\/li>\n<\/ul>\n<h5>\u4f8b\u5b50&#xff1a;<\/h5>\n<p>\u5047\u8bbe\u4f60\u5728\u4f7f\u7528\u67d0\u4e2a\u5e94\u7528\u7a0b\u5e8f&#xff0c;\u5b83\u9700\u8981\u4ece\u7f51\u7edc\u83b7\u53d6\u6570\u636e\u3002\u5728\u7b49\u5f85\u6570\u636e\u4ece\u670d\u52a1\u5668\u8fd4\u56de\u4e4b\u524d&#xff0c;\u8fdb\u7a0b\u5c31\u4f1a\u8fdb\u5165\u963b\u585e\u72b6\u6001\u3002\u5728\u6b64\u671f\u95f4&#xff0c;\u5b83\u4e0d\u4f1a\u5360\u7528 CPU&#xff0c;\u800c\u662f\u7b49\u5f85\u6570\u636e\u8fd4\u56de\u3002\u00a0<\/p>\n<h4>2. \u6302\u8d77&#xff08;Suspended&#xff09;\u72b6\u6001&#xff1a;<\/h4>\n<p>\u6302\u8d77\u72b6\u6001&#xff08;\u4e5f\u79f0\u4e3a\u4ea4\u6362\u81f3\u78c1\u76d8\u72b6\u6001&#xff09;\u662f\u6307\u8fdb\u7a0b\u6682\u65f6\u88ab\u79fb\u51fa\u5185\u5b58&#xff0c;\u6302\u8d77\u7b49\u5f85\u6062\u590d\u3002\u8fd9\u79cd\u72b6\u6001\u901a\u5e38\u53d1\u751f\u5728\u7cfb\u7edf\u5185\u5b58\u7d27\u5f20\u65f6&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u9009\u62e9\u5c06\u67d0\u4e9b\u8fdb\u7a0b\u7684\u72b6\u6001\u4fdd\u5b58\u5728\u78c1\u76d8\u4e0a&#xff0c;\u800c\u975e\u7ee7\u7eed\u5360\u7528\u5185\u5b58\u8d44\u6e90\u3002\u6302\u8d77\u7684\u8fdb\u7a0b\u5904\u4e8e\u201c\u975e\u6d3b\u52a8\u201d\u72b6\u6001&#xff0c;\u5b83\u6ca1\u6709\u88ab\u8c03\u5ea6\u6267\u884c&#xff0c;\u76f4\u5230\u64cd\u4f5c\u7cfb\u7edf\u5c06\u5176\u4ece\u78c1\u76d8\u4e2d\u6062\u590d\u5230\u5185\u5b58\u4e2d&#xff0c;\u624d\u4f1a\u91cd\u65b0\u8fdb\u5165\u5c31\u7eea\u72b6\u6001\u3002<\/p>\n<h5>\u6302\u8d77\u7684\u539f\u56e0&#xff1a;<\/h5>\n<ul>\n<li>\n<p><span style=\"color:#be191c\">\u5185\u5b58\u4e0d\u8db3&#xff1a;<\/span>\u5f53\u7cfb\u7edf\u5185\u5b58\u4e0d\u8db3\u65f6&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u53ef\u80fd\u4f1a\u5c06\u67d0\u4e9b\u8fdb\u7a0b\u6302\u8d77&#xff0c;\u8f6c\u79fb\u5230\u78c1\u76d8\u4e2d\u4fdd\u5b58&#xff0c;\u4ece\u800c\u91ca\u653e\u5185\u5b58\u7a7a\u95f4\u7ed9\u5176\u4ed6\u8fdb\u7a0b\u4f7f\u7528\u3002<\/p>\n<\/li>\n<li>\n<p>\u64cd\u4f5c\u7cfb\u7edf\u7684\u8c03\u5ea6\u7b56\u7565&#xff1a;\u64cd\u4f5c\u7cfb\u7edf\u53ef\u80fd\u6839\u636e\u4f18\u5148\u7ea7\u7b49\u56e0\u7d20\u9009\u62e9\u6302\u8d77\u67d0\u4e9b\u8fdb\u7a0b\u3002<\/p>\n<\/li>\n<\/ul>\n<h5>\u6302\u8d77\u72b6\u6001\u7684\u8868\u73b0&#xff1a;<\/h5>\n<ul>\n<li>\n<p>\u6302\u8d77\u72b6\u6001\u7684\u8fdb\u7a0b\u6682\u65f6\u88ab\u4ece\u5185\u5b58\u4e2d\u79fb\u9664&#xff0c;\u8fdb\u7a0b\u7684\u4e0a\u4e0b\u6587\u4fe1\u606f\u88ab\u4fdd\u5b58\u5230\u78c1\u76d8\u4e2d&#xff0c;\u76f4\u5230\u5b83\u518d\u6b21\u88ab\u8c03\u5ea6\u3002<\/p>\n<\/li>\n<li>\n<p>\u6302\u8d77\u7684\u8fdb\u7a0b\u4e0d\u4f1a\u5360\u7528 CPU \u548c\u5185\u5b58\u8d44\u6e90\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e0e\u963b\u585e\u72b6\u6001\u4e0d\u540c&#xff0c;\u6302\u8d77\u72b6\u6001\u901a\u5e38\u7531\u64cd\u4f5c\u7cfb\u7edf\u4e3b\u52a8\u63a7\u5236&#xff0c;\u800c\u4e0d\u662f\u8fdb\u7a0b\u7531\u4e8e\u7b49\u5f85\u8d44\u6e90\u800c\u8fdb\u5165\u8fd9\u79cd\u72b6\u6001\u3002<\/p>\n<\/li>\n<\/ul>\n<h5>\u4f8b\u5b50&#xff1a;<\/h5>\n<p>\u5047\u8bbe\u64cd\u4f5c\u7cfb\u7edf\u5185\u5b58\u8d44\u6e90\u7d27\u5f20&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u9009\u62e9\u5c06\u4e00\u4e9b\u4f4e\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u6302\u8d77&#xff0c;\u4fdd\u5b58\u5230\u78c1\u76d8\u4e2d&#xff0c;\u76f4\u5230\u6709\u8db3\u591f\u7684\u5185\u5b58\u7a7a\u95f4&#xff0c;\u518d\u5c06\u5b83\u4eec\u6062\u590d\u5230\u5185\u5b58\u4e2d\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n<p>#include &lt;iostream&gt;<br \/>\n#include &lt;unistd.h&gt;<br \/>\n#include &lt;sys\/types.h&gt;<br \/>\n#include &lt;fcntl.h&gt;<\/p>\n<p>int main() {<br \/>\n    int fd &#061; open(&#034;example_file.txt&#034;, O_RDONLY);<br \/>\n    if (fd &#061;&#061; -1) {<br \/>\n        std::cerr &lt;&lt; &#034;Failed to open file, blocking&#8230;&#034; &lt;&lt; std::endl;<br \/>\n        \/\/ \u963b\u585e\u72b6\u6001&#xff1a;\u7b49\u5f85\u6587\u4ef6\u6253\u5f00<br \/>\n        sleep(10);  \/\/ \u5047\u8bbe\u7b49\u5f85\u6587\u4ef6\u5c31\u7eea<br \/>\n    }<br \/>\n    close(fd);<br \/>\n    return 0;<br \/>\n}<\/p>\n<h4>\u963b\u585e\u4e0e\u6302\u8d77\u7684\u533a\u522b&#xff1a;<\/h4>\n<p>\u867d\u7136 \u963b\u585e \u548c \u6302\u8d77 \u90fd\u610f\u5473\u7740\u8fdb\u7a0b\u4e0d\u4f1a\u6267\u884c&#xff0c;\u4f46\u5b83\u4eec\u6709\u4ee5\u4e0b\u51e0\u70b9\u4e0d\u540c&#xff1a;<\/p>\n<table>\n<tr>\u533a\u522b\u963b\u585e&#xff08;Blocked&#xff09;\u6302\u8d77&#xff08;Suspended&#xff09;<\/tr>\n<tbody>\n<tr>\n<td>\u89e6\u53d1\u539f\u56e0<\/td>\n<td>\u8fdb\u7a0b\u7b49\u5f85\u67d0\u4e9b\u8d44\u6e90&#xff08;\u5982 I\/O \u64cd\u4f5c\u3001\u4fe1\u53f7\u7b49&#xff09;<\/td>\n<td>\u8fdb\u7a0b\u4e3b\u52a8\u6216\u88ab\u52a8\u4ece\u5185\u5b58\u79fb\u5230\u78c1\u76d8&#xff0c;\u901a\u5e38\u662f\u7531\u4e8e\u5185\u5b58\u4e0d\u8db3<\/td>\n<\/tr>\n<tr>\n<td>\u64cd\u4f5c\u7cfb\u7edf\u884c\u4e3a<\/td>\n<td>\u64cd\u4f5c\u7cfb\u7edf\u5c06\u8fdb\u7a0b\u653e\u5165\u7b49\u5f85\u961f\u5217&#xff0c;\u7b49\u5f85\u8d44\u6e90<\/td>\n<td>\u64cd\u4f5c\u7cfb\u7edf\u4e3b\u52a8\u5c06\u8fdb\u7a0b\u72b6\u6001\u4fdd\u5b58\u5230\u78c1\u76d8&#xff0c;\u8282\u7701\u5185\u5b58<\/td>\n<\/tr>\n<tr>\n<td>\u8d44\u6e90\u5360\u7528<\/td>\n<td>\u8fdb\u7a0b\u4e0d\u5360\u7528 CPU \u8d44\u6e90&#xff0c;\u4f46\u4ecd\u5360\u7528\u5185\u5b58\u8d44\u6e90<\/td>\n<td>\u8fdb\u7a0b\u4e0d\u5360\u7528 CPU \u548c\u5185\u5b58\u8d44\u6e90<\/td>\n<\/tr>\n<tr>\n<td>\u6062\u590d\u6761\u4ef6<\/td>\n<td>\u8fdb\u7a0b\u7b49\u5f85\u7684\u8d44\u6e90\u53ef\u7528\u65f6\u4f1a\u6062\u590d\u6267\u884c<\/td>\n<td>\u8fdb\u7a0b\u4ece\u78c1\u76d8\u6062\u590d\u5230\u5185\u5b58\u65f6\u624d\u4f1a\u6062\u590d\u6267\u884c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u603b\u7ed3&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u963b\u585e\u72b6\u6001\u901a\u5e38\u662f\u8fdb\u7a0b\u7b49\u5f85\u67d0\u4e9b\u8d44\u6e90&#xff08;\u5982 I\/O&#xff09;\u7684\u7ed3\u679c&#xff0c;\u8fd9\u79cd\u72b6\u6001\u4e0b\u8fdb\u7a0b\u4e0d\u4f1a\u5360\u7528 CPU \u8d44\u6e90\u3002<\/p>\n<\/li>\n<li>\n<p>\u6302\u8d77\u72b6\u6001\u901a\u5e38\u53d1\u751f\u5728\u5185\u5b58\u4e0d\u8db3\u65f6&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u5c06\u8fdb\u7a0b\u7684\u72b6\u6001\u4fdd\u5b58\u5728\u78c1\u76d8\u4e0a&#xff0c;\u4ee5\u4fbf\u7a0d\u540e\u6062\u590d\u3002\u6302\u8d77\u8fdb\u7a0b\u4e0d\u4f1a\u5360\u7528\u5185\u5b58\u548c CPU \u8d44\u6e90\u3002<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.1k\u6b21\uff0c\u70b9\u8d5e40\u6b21\uff0c\u6536\u85cf40\u6b21\u3002\u53ea\u6709\u88abOS\u7ba1\u7406\u597d\u4e86\uff0c\u624d\u80fd\u53d1\u6325\u5b83\u7684\u5168\u90e8\u529f\u6548\uff0c\u800c\u7cfb\u7edf\u4e2d\u5b58\u5728\u591a\u4e2a \uff0cOS\u65e0\u6cd5\u505a\u5230\u9762\u9762\u4ff1\u5230\uff0c\u56e0\u6b64\u4e3a\u4e86\u66f4\u597d\u7684\u7ba1\u7406\uff0cOS\u628a  \u5206\u6210\u4e86\u51e0\u79cd\u72b6\u6001\uff1a\u963b\u585e\u3001\u6302\u8d77\u3001\u8fd0\u884c\u3001\u4f11\u7720\u7b49\u7b49\uff0c\u81f3\u4e8e\u6bcf\u79cd\u72b6\u6001\u7684\u5e94\u7528\u573a\u666f\u662f\u4ec0\u4e48\u3001\u6709\u4ec0\u4e48\u7528\uff1f\u672c\u6587\u5c06\u4f1a\u5e26\u7740\u5927\u5bb6\u8ba4\u8bc6\u7684\u5404\u79cd  \u72b6\u6001 \u3002\u8fd0\u884c\u72b6\u6001\u662f\u8fdb\u7a0b\u6700\u57fa\u672c\u7684\u72b6\u6001\u4e4b\u4e00\uff0c\u8868\u793a\u8fdb\u7a0b\u6b63\u88ab\u64cd\u4f5c\u7cfb\u7edf\u7684CPU\u8c03\u5ea6\u5e76\u6b63\u5728\u6267\u884c\u3002\u4efb\u4f55\u6211\u4eec\u5728\u65e5\u5e38\u64cd\u4f5c\u4e2d\u770b\u5230\u7684\u3001\u6b63\u5728\u6267\u884c\u7684\u7a0b\u5e8f\uff0c\u5982\u6d4f\u89c8\u5668\u3001\u6587\u672c\u7f16\u8f91\u5668\u3001\u97f3\u4e50\u64ad\u653e\u5668\u7b49\uff0c\u5176\u80cc\u540e\u7684\u8fdb\u7a0b\u90fd\u5728\u8fd0\u884c\u72b6\u6001\u3002\u5f53\u4f60\u5728\u7f16\u8f91\u4e00\u4e2a\u6587\u6863\u65f6\uff0c\u4f60\u7684\u6587\u672c\u7f16\u8f91\u5668\u8fdb\u7a0b\u5c31\u662f\u5904\u4e8e\u8fd0\u884c\u72b6\u6001\uff1b\u800c\u5f53\u4f60\u5728\u6d4f\u89c8\u5668\u4e2d\u6d4f\u89c8\u7f51\u9875\u65f6\uff0c\u6d4f\u89c8\u5668\u7684<\/p>\n","protected":false},"author":2,"featured_media":32997,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[58],"topic":[],"class_list":["post-33005","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-linux"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Linux\u8fdb\u7a0b\u5b66\u4e60\u3010\u8fdb\u7a0b\u72b6\u6001\u3011 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/33005.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Linux\u8fdb\u7a0b\u5b66\u4e60\u3010\u8fdb\u7a0b\u72b6\u6001\u3011 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.1k\u6b21\uff0c\u70b9\u8d5e40\u6b21\uff0c\u6536\u85cf40\u6b21\u3002\u53ea\u6709\u88abOS\u7ba1\u7406\u597d\u4e86\uff0c\u624d\u80fd\u53d1\u6325\u5b83\u7684\u5168\u90e8\u529f\u6548\uff0c\u800c\u7cfb\u7edf\u4e2d\u5b58\u5728\u591a\u4e2a \uff0cOS\u65e0\u6cd5\u505a\u5230\u9762\u9762\u4ff1\u5230\uff0c\u56e0\u6b64\u4e3a\u4e86\u66f4\u597d\u7684\u7ba1\u7406\uff0cOS\u628a \u5206\u6210\u4e86\u51e0\u79cd\u72b6\u6001\uff1a\u963b\u585e\u3001\u6302\u8d77\u3001\u8fd0\u884c\u3001\u4f11\u7720\u7b49\u7b49\uff0c\u81f3\u4e8e\u6bcf\u79cd\u72b6\u6001\u7684\u5e94\u7528\u573a\u666f\u662f\u4ec0\u4e48\u3001\u6709\u4ec0\u4e48\u7528\uff1f\u672c\u6587\u5c06\u4f1a\u5e26\u7740\u5927\u5bb6\u8ba4\u8bc6\u7684\u5404\u79cd \u72b6\u6001 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content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-26T02:26:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250426022647-680c446764139.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/33005.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/33005.html\",\"name\":\"Linux\u8fdb\u7a0b\u5b66\u4e60\u3010\u8fdb\u7a0b\u72b6\u6001\u3011 - 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