{"id":56793,"date":"2025-02-27T20:58:18","date_gmt":"2025-02-27T12:58:18","guid":{"rendered":"https:\/\/fwq.ai\/blog\/?p=56793"},"modified":"2025-02-27T20:58:18","modified_gmt":"2025-02-27T12:58:18","slug":"%e6%b7%b1%e5%ba%a6%e5%89%96%e6%9e%90linux%e5%86%85%e6%a0%b8%e7%bd%91%e7%bb%9c%e6%a0%88%ef%bc%9a%e7%be%8e%e5%9b%bd%e6%9c%8d%e5%8a%a1%e5%99%a8%e9%ab%98%e5%b9%b6%e5%8f%91%e5%9c%ba%e6%99%af%e7%9a%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/56793\/","title":{"rendered":"\u6df1\u5ea6\u5256\u6790Linux\u5185\u6838\u7f51\u7edc\u6808\uff1a\u7f8e\u56fd\u670d\u52a1\u5668\u9ad8\u5e76\u53d1\u573a\u666f\u7684\u6570\u636e\u5305\u63a5\u6536\u4e0e\u7f13\u5b58\u7ba1\u7406"},"content":{"rendered":"<p>\u5728\u6570\u5b57\u5316\u65f6\u4ee3\uff0c\u7f51\u7edc\u5df2\u7ecf\u6210\u4e3a\u8ba1\u7b97\u673a\u7cfb\u7edf\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\uff0c\u5c24\u5176\u662f\u5bf9\u4e8e\u9700\u8981\u9ad8\u6548\u7f51\u7edc\u901a\u4fe1\u7684 <strong>\u7f8e\u56fd\u670d\u52a1\u5668<\/strong>\uff0c\u4f18\u5316\u7f51\u7edc\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002\u65e0\u8bba\u662f\u7f51\u9875\u6d4f\u89c8\u3001\u6587\u4ef6\u4f20\u8f93\uff0c\u8fd8\u662f\u5927\u89c4\u6a21\u6570\u636e\u4e2d\u5fc3\u4e4b\u95f4\u7684\u901a\u4fe1\uff0c\u7f51\u7edc\u6570\u636e\u5305\u7684\u63a5\u6536\u548c\u53d1\u9001\u90fd\u5728\u5176\u4e2d\u626e\u6f14\u7740\u6838\u5fc3\u89d2\u8272\u3002\u5bf9\u4e8e <strong>Linux \u7cfb\u7edf<\/strong> \u7528\u6237\u6765\u8bf4\uff0c\u6df1\u5165\u7406\u89e3\u7f51\u7edc\u6570\u636e\u5305\u7684\u63a5\u6536\u8fc7\u7a0b\uff0c\u662f\u89e3\u51b3\u7f51\u7edc\u95ee\u9898\u548c\u4f18\u5316\u6027\u80fd\u7684\u5173\u952e\u3002<\/p>\n<h3>\u4e00\u3001\u5f15\u8a00\uff1a\u7f51\u7edc\u6570\u636e\u5305\u63a5\u6536\u7684\u91cd\u8981\u6027<\/h3>\n<p>\u60f3\u8c61\u4e00\u4e0b\uff0c\u4f60\u6b63\u5728\u8fdb\u884c\u4e00\u573a\u5728\u7ebf\u89c6\u9891\u4f1a\u8bae\uff0c\u7a81\u7136\u753b\u9762\u5361\u987f\u3001\u58f0\u97f3\u4e2d\u65ad\uff1b\u6216\u8005\u4f60\u5728\u8fdb\u884c\u5927\u89c4\u6a21\u6587\u4ef6\u4f20\u8f93\u65f6\uff0c\u901f\u5ea6\u8fdc\u4f4e\u4e8e\u9884\u671f\u3002\u8fd9\u4e9b\u95ee\u9898\u5927\u591a\u90fd\u4e0e Linux \u7cfb\u7edf\u5bf9\u7f51\u7edc\u6570\u636e\u5305\u7684\u5904\u7406\u8fc7\u7a0b\u5bc6\u5207\u76f8\u5173\u3002\u7f51\u7edc\u6570\u636e\u5305\u7684\u4f20\u8f93\u4e0e\u63a5\u6536\u6d89\u53ca\u4ece\u786c\u4ef6\u5c42\u9762\u7684\u7f51\u5361\u5230\u8f6f\u4ef6\u5c42\u9762\u7684\u5185\u6838\u534f\u8bae\u6808\u3001\u4ee5\u53ca\u4e2d\u65ad\u673a\u5236\u7b49\u591a\u4e2a\u73af\u8282\u3002<\/p>\n<p>\u901a\u8fc7\u6df1\u5165\u5256\u6790 <strong>Linux<\/strong> \u4e0b\u7684\u7f51\u7edc\u6570\u636e\u5305\u63a5\u6536\u8fc7\u7a0b\uff0c\u6211\u4eec\u4e0d\u4ec5\u53ef\u4ee5\u4e86\u89e3\u7f51\u7edc\u6570\u636e\u5728\u7cfb\u7edf\u5185\u90e8\u6d41\u8f6c\u7684\u8def\u5f84\uff0c\u8fd8\u80fd\u591f\u8bc6\u522b\u51fa\u5404\u4e2a\u73af\u8282\u5bf9\u7f51\u7edc\u6027\u80fd\u7684\u5f71\u54cd\uff0c\u8fd9\u5bf9\u5f00\u53d1\u8005\u548c\u7cfb\u7edf\u7ba1\u7406\u5458\u6765\u8bf4\uff0c\u662f\u4f18\u5316\u7f51\u7edc\u6027\u80fd\u7684\u5f3a\u5927\u6b66\u5668\u3002<\/p>\n<h3>\u4e8c\u3001Linux \u7f51\u7edc\u57fa\u7840<\/h3>\n<h4>2.1 \u7f51\u7edc\u534f\u8bae\u6808<\/h4>\n<p>\u5728 <strong>Linux \u7cfb\u7edf<\/strong> \u4e2d\uff0c\u7f51\u7edc\u534f\u8bae\u6808\u4e3b\u8981\u5206\u4e3a\u56db\u5c42\uff1a\u94fe\u8def\u5c42\u3001\u7f51\u7edc\u5c42\u3001\u4f20\u8f93\u5c42\u548c\u5e94\u7528\u5c42\u3002\u6bcf\u4e00\u5c42\u90fd\u6709\u5176\u72ec\u7279\u7684\u529f\u80fd\uff0c\u786e\u4fdd\u6570\u636e\u5305\u80fd\u591f\u9ad8\u6548\u3001\u5b89\u5168\u5730\u4f20\u8f93\u3002<\/p>\n<ul>\n<li><strong>\u94fe\u8def\u5c42<\/strong>\uff1a\u8d1f\u8d23\u5c06\u7f51\u7edc\u5c42\u4f20\u6765\u7684\u6570\u636e\u8f6c\u5316\u4e3a\u7269\u7406\u4fe1\u53f7\uff0c\u5e76\u901a\u8fc7\u7269\u7406\u4ecb\u8d28\u8fdb\u884c\u4f20\u8f93\u3002\u4f8b\u5982\uff0c\u5728\u5c40\u57df\u7f51\u4e2d\uff0c\u6570\u636e\u4f1a\u901a\u8fc7 <strong>\u4ee5\u592a\u7f51\u534f\u8bae<\/strong> \u6765\u4f20\u8f93\u3002<\/li>\n<li><strong>\u7f51\u7edc\u5c42<\/strong>\uff1a\u5b9e\u73b0\u6570\u636e\u5305\u7684\u8def\u7531\u548c\u8f6c\u53d1\uff0c\u6838\u5fc3\u534f\u8bae\u662f <strong>IP \u534f\u8bae<\/strong>\uff0c\u8d1f\u8d23\u5c06\u6570\u636e\u5305\u4ece\u6e90\u4e3b\u673a\u4f20\u9001\u5230\u76ee\u7684\u4e3b\u673a\u3002<\/li>\n<li><strong>\u4f20\u8f93\u5c42<\/strong>\uff1a\u63d0\u4f9b\u7aef\u5230\u7aef\u7684\u901a\u4fe1\u670d\u52a1\uff0c\u4e3b\u8981\u534f\u8bae\u4e3a <strong>TCP<\/strong> \u548c <strong>UDP<\/strong>\uff0c\u5176\u4e2d <strong>UDP<\/strong> \u5728\u5b9e\u65f6\u901a\u4fe1\u4e2d\u53d1\u6325\u7740\u91cd\u8981\u4f5c\u7528\uff0c\u5c24\u5176\u662f <strong>\u7f8e\u56fd\u670d\u52a1\u5668<\/strong> \u4e0a\u7684\u89c6\u9891\u6d41\u548c\u8bed\u97f3\u4f20\u8f93\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u7406\u89e3\u8fd9\u4e9b\u534f\u8bae\u7684\u4f5c\u7528\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u4f18\u5316\u7f51\u7edc\u914d\u7f6e\uff0c\u63d0\u5347 <strong>\u7f8e\u56fd\u670d\u52a1\u5668<\/strong> \u7684\u6574\u4f53\u6027\u80fd\u3002<\/p>\n<h4>2.2 \u4e2d\u65ad\u673a\u5236<\/h4>\n<p>\u5728 <strong>Linux<\/strong> \u7f51\u7edc\u6570\u636e\u5904\u7406\u4e2d\uff0c\u4e2d\u65ad\u673a\u5236\u53d1\u6325\u4e86\u91cd\u8981\u4f5c\u7528\uff0c\u4e3b\u8981\u5305\u62ec <strong>\u786c\u4e2d\u65ad<\/strong> \u548c <strong>\u8f6f\u4e2d\u65ad<\/strong>\u3002\u786c\u4e2d\u65ad\u7531\u7f51\u5361\u4ea7\u751f\uff0c\u5f53\u6570\u636e\u5305\u5230\u8fbe\u65f6\uff0c\u5b83\u4f1a\u89e6\u53d1\u786c\u4e2d\u65ad\uff0c\u901a\u77e5 <strong>CPU<\/strong> \u5904\u7406\u6570\u636e\u3002\u8f6f\u4e2d\u65ad\u5219\u5904\u7406\u90a3\u4e9b\u53ef\u4ee5\u7a0d\u5fae\u5ef6\u8fdf\u7684\u4efb\u52a1\uff0c\u6bd4\u5982\u5bf9\u6570\u636e\u5305\u8fdb\u884c\u8fdb\u4e00\u6b65\u89e3\u6790\u548c\u5904\u7406\u3002<\/p>\n<p>\u5728 <strong>\u7f8e\u56fd\u670d\u52a1\u5668<\/strong> \u4e0a\uff0c\u4f18\u5316\u786c\u4e2d\u65ad\u548c\u8f6f\u4e2d\u65ad\u5904\u7406\uff0c\u53ef\u4ee5\u6781\u5927\u5730\u63d0\u9ad8\u7f51\u7edc\u6027\u80fd\uff0c\u51cf\u5c11\u5ef6\u8fdf\u3002<\/p>\n<h3>\u4e09\u3001\u63a5\u6536\u524d\u7684\u51c6\u5907\u5de5\u4f5c<\/h3>\n<h4>3.1 \u7f51\u7edc\u5b50\u7cfb\u7edf\u521d\u59cb\u5316<\/h4>\n<p>\u5728 <strong>Linux \u5185\u6838<\/strong> \u542f\u52a8\u8fc7\u7a0b\u4e2d\uff0c\u7f51\u7edc\u5b50\u7cfb\u7edf\u521d\u59cb\u5316\u662f\u81f3\u5173\u91cd\u8981\u7684\u4e00\u6b65\uff0c\u5b83\u4e3a\u7f51\u7edc\u6570\u636e\u7684\u63a5\u6536\u548c\u5904\u7406\u505a\u597d\u4e86\u51c6\u5907\u3002\u901a\u8fc7\u521d\u59cb\u5316\u7f51\u7edc\u8bbe\u5907\u3001\u8f6f\u4e2d\u65ad\u7b49\u673a\u5236\uff0c\u786e\u4fdd\u6570\u636e\u5305\u80fd\u591f\u987a\u5229\u4f20\u9012\u5230\u534f\u8bae\u6808\u5c42\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<p>\u5bf9\u4e8e <strong>\u7f8e\u56fd\u670d\u52a1\u5668<\/strong>\uff0c\u826f\u597d\u7684\u7f51\u7edc\u5b50\u7cfb\u7edf\u521d\u59cb\u5316\u4e0d\u4ec5\u80fd\u63d0\u9ad8\u5904\u7406\u901f\u5ea6\uff0c\u8fd8\u80fd\u589e\u5f3a\u5bf9\u9ad8\u5e76\u53d1\u6570\u636e\u6d41\u7684\u652f\u6301\u3002<\/p>\n<h4>3.2 \u7f51\u5361\u9a71\u52a8\u521d\u59cb\u5316<\/h4>\n<p>\u7f51\u5361\u9a71\u52a8\u662f\u7f51\u7edc\u6570\u636e\u5305\u80fd\u591f\u6b63\u786e\u63a5\u6536\u7684\u57fa\u7840\uff0c\u5b83\u6d89\u53ca\u5230\u7f51\u5361\u8bbe\u5907\u7684\u6ce8\u518c\u3001\u5185\u5b58\u7a7a\u95f4\u7684\u5206\u914d\u3001DMA\uff08\u76f4\u63a5\u5185\u5b58\u8bbf\u95ee\uff09\u6280\u672f\u7684\u4f7f\u7528\u7b49\u3002\u5728 <strong>Linux \u7cfb\u7edf<\/strong> \u4e2d\uff0c\u7f51\u5361\u9a71\u52a8\u901a\u8fc7 <strong>PCI \u603b\u7ebf<\/strong> \u4e0e\u7cfb\u7edf\u8fdb\u884c\u8fde\u63a5\uff0c\u786e\u4fdd\u6570\u636e\u80fd\u591f\u9ad8\u6548\u4f20\u8f93\u3002<\/p>\n<h4>3.3 ksoftirqd \u5185\u6838\u7ebf\u7a0b\u521b\u5efa<\/h4>\n<p><strong>ksoftirqd<\/strong> \u7ebf\u7a0b\u5728 <strong>Linux \u7cfb\u7edf<\/strong> \u4e2d\u8d1f\u8d23\u5904\u7406\u8f6f\u4e2d\u65ad\u3002\u5b83\u7684\u521b\u5efa\u8fc7\u7a0b\u4e0e\u7cfb\u7edf\u542f\u52a8\u7d27\u5bc6\u76f8\u5173\uff0c\u901a\u8fc7 <strong>\u8f6f\u4e2d\u65ad\u673a\u5236<\/strong> \u6765\u5904\u7406\u7f51\u7edc\u6570\u636e\u5305\uff0c\u4ece\u800c\u4fdd\u8bc1\u7cfb\u7edf\u9ad8\u6548\u3001\u7a33\u5b9a\u5730\u5904\u7406\u7f51\u7edc\u6d41\u91cf\u3002<\/p>\n<h3>\u56db\u3001\u6570\u636e\u5305\u63a5\u6536\u6d41\u7a0b<\/h3>\n<h4>4.1 \u7f51\u5361\u63a5\u6536\u6570\u636e<\/h4>\n<p>\u5f53\u7f51\u7edc\u6570\u636e\u5305\u5230\u8fbe <strong>\u7f51\u5361<\/strong> \u65f6\uff0c\u7f51\u5361\u4f1a\u901a\u8fc7 <strong>DMA<\/strong> \u6280\u672f\u5c06\u6570\u636e\u76f4\u63a5\u4f20\u8f93\u5230\u5185\u5b58\u3002\u6b64\u65f6\uff0c\u7f51\u5361\u89e6\u53d1\u786c\u4e2d\u65ad\uff0cCPU \u63a5\u6536\u5230\u786c\u4e2d\u65ad\u4fe1\u53f7\u540e\uff0c\u4f1a\u5c06\u6570\u636e\u4ece\u7f51\u5361\u7f13\u51b2\u533a\u4e2d\u63d0\u53d6\u5e76\u5b58\u5165\u5185\u5b58\u3002<\/p>\n<p>\u5728 <strong>\u7f8e\u56fd\u670d\u52a1\u5668<\/strong> \u4e0a\uff0c\u4f7f\u7528\u9ad8\u6548\u7684\u7f51\u5361\u9a71\u52a8\u548c\u4f18\u5316\u7684\u786c\u4ef6\u914d\u7f6e\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u6570\u636e\u5305\u7684\u63a5\u6536\u901f\u5ea6\uff0c\u964d\u4f4e\u5ef6\u8fdf\u3002<\/p>\n<h4>4.2 \u786c\u4ef6\u4e2d\u65ad\u5904\u7406<\/h4>\n<p>\u7f51\u5361\u89e6\u53d1\u786c\u4ef6\u4e2d\u65ad\uff0c\u901a\u77e5 <strong>CPU<\/strong> \u6709\u65b0\u7684\u6570\u636e\u5230\u8fbe\u3002<strong>CPU<\/strong> \u4f1a\u6682\u505c\u5f53\u524d\u4efb\u52a1\uff0c\u5904\u7406\u786c\u4ef6\u4e2d\u65ad\uff0c\u8fdb\u884c\u6570\u636e\u7684\u62f7\u8d1d\u548c\u6807\u8bb0\u64cd\u4f5c\u3002<\/p>\n<h3>\u4e94\u3001\u4f18\u5316 <strong>\u7f8e\u56fd\u670d\u52a1\u5668<\/strong> 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UDP\uff09\u6765\u63d0\u9ad8\u7f51\u7edc\u4f20\u8f93\u901f\u5ea6\u3002<\/li>\n<li><strong>\u4f18\u5316\u786c\u4e2d\u65ad\u548c\u8f6f\u4e2d\u65ad<\/strong>\uff1a\u901a\u8fc7\u8c03\u6574\u4e2d\u65ad\u5904\u7406\u673a\u5236\uff0c\u51cf\u5c11\u5ef6\u8fdf\uff0c\u589e\u5f3a\u670d\u52a1\u5668\u5bf9\u9ad8\u5e76\u53d1\u8fde\u63a5\u7684\u5904\u7406\u80fd\u529b\u3002<\/li>\n<li><strong>\u4f7f\u7528\u9ad8\u6548\u7684\u7f51\u5361\u9a71\u52a8<\/strong>\uff1a\u9009\u62e9\u9002\u5408\u7684\u7f51\u5361\u9a71\u52a8\u548c\u786c\u4ef6\u52a0\u901f\u6280\u672f\uff0c\u63d0\u5347\u6570\u636e\u5305\u5904\u7406\u901f\u5ea6\uff0c\u7279\u522b\u662f\u5728\u9762\u5bf9\u5927\u89c4\u6a21\u6570\u636e\u6d41\u65f6\u3002<\/li>\n<\/ol>\n<h3>\u516d\u3001\u603b\u7ed3<\/h3>\n<p>\u6df1\u5165\u7406\u89e3 <strong>Linux \u7cfb\u7edf<\/strong> 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