{"id":2739,"date":"2023-11-30T17:24:10","date_gmt":"2023-11-30T09:24:10","guid":{"rendered":"http:\/\/yaochenkun.site\/?p=2739"},"modified":"2024-11-23T15:38:17","modified_gmt":"2024-11-23T07:38:17","slug":"thread_model","status":"publish","type":"post","link":"http:\/\/yaochenkun.site\/index.php\/2023\/11\/30\/thread_model\/","title":{"rendered":"\u5e38\u89c1\u7ebf\u7a0b\u6a21\u578b\u89e3\u8bfb"},"content":{"rendered":"
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\u5f15\u8a00<\/h3>\n

Client\/Server \u67b6\u6784\u4e0b Server \u7aef\u7684\u7ebf\u7a0b\u6a21\u578b\u6709\u7740\u975e\u5e38\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u5b83\u7684\u7ed3\u6784\u76f4\u63a5\u51b3\u5b9a\u4e86\u670d\u52a1\u5668\u53ef\u4ee5\u5e76\u53d1\u5904\u7406\u7684\u8bf7\u6c42\u6570\u3001\u5904\u7406\u901f\u7387\u3001\u541e\u5410\u91cf\u7b49\uff0c\u6211\u4eec\u5e38\u7528\u7684 HTTP \u670d\u52a1\u6846\u67b6\u5982 Gin\u3001SpringMVC\u3001Flask\u7b49\uff0cRPC \u901a\u4fe1\u6846\u67b6 Dubbo\u3001Thrift \u7b49\u4e5f\u90fd\u9700\u8981\u8003\u8651\u7ebf\u7a0b\u6a21\u578b\u7684\u8bbe\u8ba1\u3002\u867d\u7136\u6211\u4eec\u5728\u65e5\u5e38\u5de5\u4f5c\u4e2d\u5df2\u7ecf\u5f88\u5c11\u9700\u8981\u63a5\u89e6\u8fd9\u90e8\u5206\u7684\u4ee3\u7801\uff0c\u4f46\u5b83\u7684\u6280\u672f\u601d\u60f3\u8fd8\u662f\u6bd4\u8f83\u7cbe\u8f9f\u7684\u3002\u672c\u6587\u63a2\u8ba8\u4e00\u4e0b\u5e38\u89c1\u7684\u4e09\u79cd\u7ebf\u7a0b\u6a21\u578b\uff1a\u963b\u585e I\/O & \u5355\u7ebf\u7a0b\u6a21\u578b\u3001\u963b\u585e I\/O & \u591a\u7ebf\u7a0b\u6a21\u578b\u3001I\/O \u591a\u8def\u590d\u7528 & \u591a\u7ebf\u7a0b\u6a21\u578b\u3002<\/p>\n

\n
\n
\n

\u963b\u585e I\/O & \u5355\u7ebf\u7a0b\u6a21\u578b<\/h3>\n

\u6700\u7b80\u5355\u7684\u963b\u585eI\/O(Blocking I\/O) & \u5355\u7ebf\u7a0b\u6a21\u578b\u5b9e\u73b0\uff0c\u90a3\u4e48\u670d\u52a1\u7aef\u5c06\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\uff0c\u8be5\u7ebf\u7a0b\u65e2\u7528\u4e8e\u5efa\u7acb\u4e0e\u5ba2\u6237\u7aef\u7684 TCP \u8fde\u63a5\uff0c\u53c8\u7528\u4e8e\u540e\u7eed\u7684\u4e1a\u52a1\u903b\u8f91\u5904\u7406\uff0c\u4e14\u65b0\u5230\u6765\u7684\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42\u5c06\u88ab\u963b\u585e\u76f4\u81f3\u524d\u9762\u7684\u8bf7\u6c42\u5904\u7406\u5b8c\u6210\u3002\u53ef\u4ee5\u53d1\u73b0\uff0c\u5982\u679c\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u6570\u8f83\u591a\u4e14\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684\u4e1a\u52a1\u903b\u8f91\u6bd4\u8f83\u590d\u6742\uff0c\u5f88\u5bb9\u6613\u56e0\u4e3a\u5904\u7406\u4e0d\u53ca\u65f6\u800c\u5728\u670d\u52a1\u7aef\u5806\u79ef\u5927\u91cf\u7684 I\/O \u8bf7\u6c42\uff0c\u9020\u6210\u5176\u5b83\u5ba2\u6237\u7aef\u957f\u65f6\u95f4\u5f97\u4e0d\u5230\u670d\u52a1\u3002\u8fd9\u79cd\u73b0\u8c61\u53d1\u751f\u7684\u6839\u672c\u539f\u56e0\u5728\u4e8e\u670d\u52a1\u7aef\u7684\u5355\u7ebf\u7a0b\u6a21\u578b\u65e0\u6cd5\u5145\u5206\u5229\u7528 CPU \u8d44\u6e90\uff0c\u8fdb\u800c\u65e0\u6cd5\u89e3\u51b3 I\/O \u4e0e CPU \u901f\u5ea6\u7684\u4e0d\u5339\u914d\u95ee\u9898\u3002\u6c34\u5e73\u6269\u5c55\u670d\u52a1\u5668\u6570\u91cf\u53ef\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u63d0\u9ad8\u6027\u80fd\uff0c\u4f46\u4ecd\u65e0\u6cd5\u4ece\u6839\u672c\u89e3\u51b3\u95ee\u9898\uff0c\u56e0\u4e3a\u8fd9\u79cd\u89e3\u51b3\u65b9\u5f0f\u7684\u5b9e\u8d28\u662f\u589e\u52a0\u8fdb\u7a0b\u6570\u91cf\uff0c\u800c\u672a\u5bf9\u8fdb\u7a0b\u5185\u90e8\u7684\u7ebf\u7a0b\u6a21\u578b\u8fdb\u884c\u6539\u9020\uff0c\u5982\u679c\u5c06\u5355\u7ebf\u7a0b\u6a21\u578b \u6539\u9020\u4e3a\u591a\u7ebf\u7a0b\u6a21\u578b\u5c06\u5927\u5927\u63d0\u5347\u6027\u80fd\u3002<\/p>\n

\u963b\u585e I\/O & \u591a\u7ebf\u7a0b\u6a21\u578b<\/h3>\n

\u8be5\u6a21\u578b\u5c06\u4e0a\u8ff0\u7684\u5355\u7ebf\u7a0b\u6a21\u578b\u6539\u8fdb\u4e3a\u4e86\u591a\u7ebf\u7a0b\u6a21\u578b\uff0c\u4f7f\u5f97\u670d\u52a1\u5668\u7aef\u53ef\u4ee5\u540c\u65f6\u54cd\u5e94\u591a\u4e2a\u5ba2\u6237\u7aef\u7684 I\/O \u8bf7\u6c42\uff0c\u5ba2\u6237\u7aef\u8fde\u63a5\u4e0e\u670d\u52a1\u7aef\u7ebf\u7a0b\u6570\u4e4b\u6bd4\u4e3a 1:1\uff0c\u5373\u6bcf\u5f53\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u5efa\u7acb\u5c31\u521b\u5efa\u4e00\u4e2a\u7ebf\u7a0b\uff0c\u5e76\u7531\u8be5\u7ebf\u7a0b\u8d1f\u8d23\u8bfb\u53d6\u3001\u5199\u5165\u3001\u5904\u7406\u8be5\u5ba2\u6237\u7aef\u7684\u6570\u636e\u3002\u53ef\u4ee5\u770b\u51fa\uff0c\u8be5\u6a21\u578b\u901a\u8fc7\u5efa\u7acb\u5b50\u7ebf\u7a0b\uff0c\u4f7f\u4e3b\u7ebf\u7a0b\u8d1f\u8d23\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u5efa\u7acb\uff0c\u5b50\u7ebf\u7a0b\u8d1f\u8d23\u5f02\u6b65\u65b9\u5f0f\u5904\u7406\u8bfb\u5199\u4e0e\u5904\u7406\u4efb\u52a1\uff0c\u5e76\u53d1\u5ea6\u76f8\u8f83\u5355\u7ebf\u7a0b\u6a21\u578b\u6709\u660e\u663e\u63d0\u9ad8\uff0c \u53ef\u4ee5\u652f\u6301\u66f4\u591a\u7684\u5ba2\u6237\u7aef\u8fde\u63a5\u3002\u4f46\u8be5\u6a21\u578b\u5b58\u5728\u4e24\u4e2a\u7f3a\u9677\uff1a<\/p>\n

    \n
  • \u5982\u679c\u5ba2\u6237\u7aef\u8fde\u63a5\u6570\u589e\u591a\uff0c\u90a3\u4e48\u5728\u670d\u52a1\u7aef\u521b\u5efa\u7684\u7ebf\u7a0b\u6570\u4e5f\u5c06\u540c\u6bd4\u589e\u591a\uff0c\u5185\u5b58\u8d44\u6e90\u7684\u6d88\u8017\u91cf\u8f83\u5927\uff0c\u5bb9\u6613\u9020\u6210\u670d\u52a1\u5668\u5185\u5b58\u6ea2\u51fa<\/li>\n
  • \u00a0I\/O \u64cd\u4f5c\u4ecd\u7136\u662f\u963b\u585e\u7684\uff0c\u6bcf\u4e2a\u7ebf\u7a0b\u6267\u884c\u5230\u8bfb\u53d6\u4e0e\u5199\u5165\u64cd\u4f5c\u65f6\u4f1a\u8fdb\u5165\u963b\u585e\u72b6\u6001\uff0c\u5e76\u8fdb\u884c\u7528\u6237\u7a7a\u95f4\u4e0e\u5185\u6838\u7a7a\u95f4\u4e4b\u95f4\u7684\u6570\u636e\u62f7\u8d1d\uff0c\u76f4\u81f3\u5b8c\u6210\u540e\u624d\u89e3\u9664\u7ebf\u7a0b\u7684\u963b\u585e\uff0c\u963b\u585e I\/O \u5bfc\u81f4\u7ebf\u7a0b\u5728\u963b\u585e\u671f\u95f4\u672a\u80fd\u5145\u5206\u5f97\u5230\u5229\u7528\uff0c\u9020\u6210\u7ebf\u7a0b\u5229\u7528\u7387\u964d\u4f4e\u3002<\/li>\n<\/ul>\n

    I\/O \u591a\u8def\u590d\u7528 & \u591a\u7ebf\u7a0b\u6a21\u578b<\/h3>\n

    I\/O \u591a\u8def\u590d\u7528 (I\/O Multiplexing) \u5141\u8bb8\u4e00\u4e2a\u7ebf\u7a0b\u53ef\u901a\u8fc7\u8bb0\u5f55 I\/O \u6d41\u7684\u72b6\u6001\u6765\u7ba1\u7406\u591a\u4e2a I\/O \u6d41\uff0c\u5373\u4e00\u4e2a\u7ebf\u7a0b\u53ef\u76d1\u89c6\u591a\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u5f53\u6587\u4ef6\u63cf\u8ff0\u7b26\u8fdb\u5165\u8bfb\u6216\u5199\u5c31\u7eea\u72b6\u6001\u65f6\uff0c\u5185\u6838\u51fd\u6570\u5c06\u7acb\u5373\u8fd4\u56de\u51c6\u5907\u5c31\u7eea\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u6b64\u65f6\u7528\u6237\u8fdb\u7a0b\u518d\u8c03\u7528 read\/write \u64cd\u4f5c\u5373\u53ef\u5c06\u5b8c\u6210\u6570\u636e\u5728\u7528\u6237\u7a7a\u95f4\u4e0e\u5185\u6838\u7a7a\u95f4\u7684\u4ea4\u6362\u3002\u76ee\u524d Linux \u4e2d\u5b9e\u73b0 I\/O \u591a\u8def\u590d\u7528\u7684\u5185\u6838\u51fd\u6570\u4e3b\u8981\u662f select \u4e0e epoll\uff0cselect \u51fd\u6570\u76d1\u89c6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u5206\u4e3a writefds\u3001readfds \u548c exceptfds\uff0c\u88ab\u8c03\u7528\u540e\u4f1a\u963b\u585e\u76f4\u81f3\u6709\u63cf\u8ff0\u7b26\u5c31\u7eea\uff08\u53ef\u8bfb\u3001\u53ef\u5199\u3001\u5f02\u5e38\u6216\u8d85\u65f6\uff09\uff0c\u5f53 select \u51fd\u6570\u8fd4\u56de\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7\u626b\u63cf fdset \u641c\u7d22\u5c31\u7eea\u7684\u63cf\u8ff0\u7b26\uff0cselect \u51fd\u6570\u7684\u7f3a\u70b9\u6709\u4e09\u4e2a\uff1a<\/p>\n

      \n
    • \u5355\u4e2a\u7ebf\u7a0b\u53ef\u76d1\u89c6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u6570\u91cf\u6709\u9650\uff0cLinux \u7cfb\u7edf\u4e00\u822c\u4e3a 1024<\/li>\n
    • \u904d\u5386 fdset \u83b7\u53d6\u5c31\u7eea\u63cf\u8ff0\u7b26\u65f6\u91c7\u7528\u7684\u662f\u7ebf\u6027\u626b\u63cf\uff0c\u5373\u8f6e\u8be2\u65b9\u5f0f\uff0c\u6b64\u79cd\u65b9\u5f0f\u7684\u7f3a\u70b9\u662f CPU \u65f6\u95f4\u7247\u6d6a\u8d39\u8f83\u591a<\/li>\n
    • \u9700\u8981\u7ef4\u62a4\u4e00\u4e2a\u5b58\u653e\u5927\u91cf fd \u7684\u6570\u636e\u7ed3\u6784 fdset\uff0c \u5728\u7528\u6237\u7a7a\u95f4\u4e0e\u5185\u6838\u7a7a\u95f4\u4f20\u9012\u5f00\u9500\u8f83\u5927\u3002Linux2.6 \u5185\u6838\u4e2d\u7684 epoll \u51fd\u6570\u5f25\u8865\u4e86 select \u51fd\u6570\u7684\u4e0d\u8db3\uff0c\u8be5\u51fd\u6570\u9996\u5148\u5229\u7528 mmap()\u5c06\u6587\u4ef6\u6620\u5c04\u8fdb\u5185\u5b58\uff0c\u52a0\u901f\u4e0e\u5185\u6838\u7a7a\u95f4\u7684\u6d88\u606f\u4f20\u9012\uff0c\u51cf\u5c11\u4e86\u62f7\u8d1d\u5f00\u9500\uff0c\u7136\u540e\u57fa\u4e8e\u4e8b\u4ef6\u7684\u5c31\u7eea\u901a\u77e5\u65b9\u5f0f\uff0c\u5c06\u7528\u6237\u5173\u7cfb\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u4e8b\u4ef6\u5b58\u653e\u5230\u5185\u6838\u7684\u4e00\u4e2a\u4e8b\u4ef6\u8868\u4e2d\uff0c\u901a\u8fc7 epoll_ctl \u6ce8\u518c fd\uff0c\u4e00\u65e6\u8be5 fd \u5c31\u7eea\uff0c\u5185\u6838\u5c06\u91c7\u7528 callback \u56de\u8c03\u673a\u5236\u6fc0\u6d3b\u8be5 fd\uff0cepoll_wait \u4fbf\u53ef\u6536\u5230\u901a\u77e5\u3002epoll \u5f15\u5165\u7ea2 \u9ed1\u6811\u5b58\u50a8\u63cf\u8ff0\u7b26\uff0c\u4fdd\u8bc1\u8c03\u7528 epoll_ctl \u65f6\u63d2\u5165\u4e0e\u5220\u9664\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u7ef4\u6301\u5728 O(logN)<\/li>\n<\/ul>\n

      Reactor \u6a21\u5f0f<\/h3>\n
      \n
      \n
      \n

      Reactor \u6a21\u5f0f\u662f\u5c06 I\/O \u591a\u8def\u590d\u7528\u6280\u672f\u8fd0\u7528\u4e8e\u5b9e\u8df5\u7684\u4e3b\u6d41\u89e3\u51b3\u65b9\u6848\uff0cNetty \u5c31\u662f\u57fa\u4e8e\u8be5\u6a21\u5f0f\u7684\u3002Reactor \u6a21\u5f0f\u57fa\u4e8e\u4e8b\u4ef6\u9a71\u52a8\u673a\u5236\uff0c\u5c06\u8fde\u63a5\u5efa\u7acb ACCEPT\u3001\u6570\u636e\u8bfb\u53d6 READ\u3001\u6570\u636e\u5199\u5165 WRITE \u7b49\u4e8b\u4ef6\u7684\u5904\u7406\u8fc7\u7a0b\u76f8\u4e92\u89e3\u8026\uff0c\u901a\u8fc7\u590d\u7528\u7ebf\u7a0b\u7684\u65b9\u5f0f\u63d0\u5347\u5904\u7406\u7684\u5e76\u53d1\u5ea6\uff0c\u540c\u65f6\u8fbe\u5230\u4e86\u8282\u7701\u5185\u5b58\u8d44\u6e90\u7684\u76ee\u7684\u3002\u5176\u67b6\u6784\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n

       <\/p>\n

      \"\"<\/p>\n

      \u5f53\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u7aef\u53d1\u8d77\u4e00\u4e2a\u8fde\u63a5\u8bf7\u6c42\u65f6\uff0cMainReactor \u7ebf\u7a0b\u4e2d\u7684 Selector \u5c06\u76d1\u542c\u5230\u7684 ACCEPT \u4e8b\u4ef6\uff0c\u5e76\u5c06\u8be5\u4e8b\u4ef6\u6d3e\u53d1\u7ed9 Acceptor \u5904\u7406\u5668\u8fdb\u884c\u5904\u7406\uff0cAcceptor \u5904\u7406\u5668\u901a\u8fc7 accept() \u5f97\u5230\u4e0e\u8fd9\u4e2a\u5ba2\u6237\u7aef\u5bf9\u5e94\u7684\u8fde\u63a5\uff0c\u7136\u540e\u5c06\u5176\u4f20\u9012\u7ed9 SubReactor \u7ebf\u7a0b\u6c60\uff0c\u7531\u7ebf\u7a0b\u6c60\u6240\u5206\u914d\u7684 SubReactor \u7ebf\u7a0b\u6ce8\u518c\u5728 SocketChannel \u4e0a\u6240\u5173\u6ce8\u7684 READ\/WRITE \u4e8b\u4ef6\uff0c\u5176\u4e2d\u6bcf\u4e2a SubReactor \u5747\u6709\u81ea\u5df1\u7684 Selector \u4e0e\u4e8b\u4ef6\u5206\u53d1\u7684\u5faa\u73af\u903b\u8f91:\u5f53\u76d1\u542c\u5230 READ \u5c31\u7eea\u4e8b\u4ef6\u65f6\uff0cSubReactor \u7ebf\u7a0b\u9996\u5148\u901a\u8fc7 read()\u8bfb\u53d6\u6570\u636e\uff0c\u518d\u5c06\u6570\u636e\u653e\u5165 Worker \u7ebf\u7a0b\u6c60\u5b8c\u6210\u5b9e\u9645\u7684\u4e1a\u52a1\u903b\u8f91\u5904\u7406\uff0c\u5904\u7406\u5b8c\u6210\u540e\u53d1\u51fa WRITE \u5c31\u7eea\u4e8b\u4ef6\uff0c\u4e4b\u524d\u7684 SubReactor \u7ebf\u7a0b\u5c06\u76d1\u542c\u5230\u8be5\u4e8b\u4ef6\uff0c\u5e76\u8c03\u7528 write()\u5b8c\u6210\u5b9e\u9645\u7684\u5199\u56de\u5ba2\u6237\u7aef\u4efb\u52a1\u3002\u53ef\u4ee5\u770b\u51fa\uff0cMainReactor \u7ebf\u7a0b\u8d1f\u8d23\u7684\u662f\u8fde\u63a5\u5efa\u7acb\u4efb\u52a1 accept\/connect\uff0c\u800c SubReactor \u7ebf\u7a0b\u8d1f\u8d23\u7684\u662f\u8bfb\u5199\u4efb\u52a1 read\/write\uff0cWorker \u7ebf\u7a0b\u8d1f \u8d23\u7684\u662f\u975e I\/O \u76f8\u5173\u7684\u4e1a\u52a1\u903b\u8f91\u5904\u7406\u4efb\u52a1\uff0c\u8bbe\u8ba1\u65b9\u6848\u5229\u7528\u5355\u4e00\u804c\u8d23\u7684\u601d\u60f3\uff0c\u4e0d\u4ec5\u8fbe\u5230\u4e86\u8bf7\u6c42\u4e0e\u5904\u7406\u7684\u89e3\u8026\uff0c\u8fd8\u907f\u514d\u4e86\u56e0\u4e3a\u6570\u636e\u91cf\u8fc7\u5927\u800c\u5bfc\u81f4\u65b0\u6765\u7684\u5ba2\u6237\u7aef\u8fde\u63a5\u5f97\u4e0d\u5230\u53ca\u65f6\u5904\u7406\uff0c\u56e0\u4e3a\u4e1a\u52a1\u903b\u8f91\u5904\u7406\u4efb\u52a1\u8fc7\u6162\u5bfc\u81f4 I\/O \u963b\u585e\u7b49\u60c5\u51b5\u7684\u53d1\u751f\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

      \n
      \n
      \n

      \u6027\u80fd\u5bf9\u6bd4<\/h3>\n
      \n
      \n
      \n

      \u672c\u6587\u67b6\u8bbe\u4e86\u4e00\u4e2a Thrift RPC \u670d\u52a1\u7aef\uff0c\u901a\u8fc7\u5b9e\u73b0\u4e0d\u540c\u7684\u7ebf\u7a0b\u6a21\u578b\u8fdb\u884c\u6d4b\u8bd5\u4e0e\u5bf9\u6bd4\uff1a\u9488\u5bf9\u7f51\u7edc I\/O \u65b9\u9762\u5bf9\u6bd4\u963b\u585e I\/O \u4e0e I\/O \u591a\u8def\u590d\u7528\u5bf9\u54cd\u5e94\u65f6\u95f4\u7684\u5f71\u54cd\uff0c\u9488\u5bf9\u7ebf\u7a0b\u65b9\u9762\u5bf9\u6bd4\u5355\u7ebf\u7a0b\u3001\u5373\u65f6\u521b\u5efa\u7ebf\u7a0b\u4e0e\u7ebf\u7a0b\u6c60\u5bf9\u54cd\u5e94\u65f6\u95f4\u7684\u5f71\u54cd\uff0c\u5e76\u6784\u5efa4\u7ec4\u76f8\u4e92\u5bf9\u7167\u7684\u6d4b\u8bd5\u65b9\u6848\uff1a\u963b\u585e I\/O & \u5355\u7ebf\u7a0b\u3001\u963b\u585e I\/O & \u5373\u65f6\u521b\u5efa\u7ebf\u7a0b\u3001\u963b\u585e I\/O & \u7ebf\u7a0b\u6c60\u3001 I\/O \u591a\u8def\u590d\u7528 & \u7ebf\u7a0b\u6c60\u3002 \u5229\u7528\u538b\u6d4b\u5de5\u5177 JMeter \u987a\u6b21\u6a21\u62df 5\u300150\u3001500 \u548c 5000 \u4e2a\u5e76\u53d1\u8bf7\u6c42\uff08\u5373\u7b49\u4ef7\u4e8e\u76f8\u5e94\u6570\u91cf\u7684\u5e76\u53d1\u8fde\u63a5\uff09\uff0c\u6bcf\u7ec4\u8ba9 JMeter \u7ebf\u7a0b\u7ec4\u5faa\u73af\u6267\u884c 5 \u6b21\u540e\uff0c\u7edf\u8ba1\u51fa\u5e73\u5747\u54cd\u5e94\u65f6\u95f4\u3002<\/p>\n

       <\/p>\n<\/div>\n

      \n
      \n
      \n

      \"\"\u901a\u8fc7\u6a2a\u5411\u4e0e\u7eb5\u5411\u5730\u5206\u6790\u7edf\u8ba1\u56fe\u4e2d\u7684\u6570\u636e\uff0c\u4e0b\u9762\u662f\u5bf9\u8fd9\u56db\u79cd\u7ebf\u7a0b\u6a21\u578b\u7684\u8bc4\u4ef7:<\/p>\n

        \n
      • \u963b\u585e I\/O & \u5355\u7ebf\u7a0b\uff1a\u5728\u8fde\u63a5\u6570\u8f83\u5c11\u65f6\uff0c\u80fd\u591f\u5728\u8c03\u7528\u65b9\u53ef\u63a5\u53d7\u7684\u54cd\u5e94\u65f6\u95f4\u8303\u56f4\u5185\u5b8c\u6210\u670d\u52a1\uff0c\u4f46\u968f\u7740\u8fde\u63a5\u6570\u589e\u591a\uff0c\u54cd\u5e94\u65f6\u95f4\u5f88\u5bb9\u6613\u8d85\u51fa\u6b63\u5e38\u8303\u56f4\uff0c\u5176\u539f\u56e0\u662f\u5355\u7ebf\u7a0b\u6a21\u578b\u4ec5\u80fd\u540c\u65f6\u5904\u7406\u4e00\u4e2a\u8bf7\u6c42\uff0c\u800c\u540e\u7eed\u5230\u6765\u7684\u8bf7\u6c42\u5747\u9700\u6392\u961f\u7b49\u5019\uff0c\u76f4\u81f3\u7b2c\u4e00\u4e2a\u8bf7\u6c42\u53d1\u51fa\u5904\u7406\u5b8c\u6210\u7684\u4fe1\u53f7\u91cf\u901a\u77e5\uff0c\u8fd9\u4e2a\u7b49\u5f85\u8fc7\u7a0b\u8868\u73b0\u5728\u8c03\u7528\u65b9\u5ba2\u6237\u7aef\u7684\u7ebf\u7a0b\u4e0a\u662f\u540c\u6b65\u963b\u585e\u7684\uff0c\u82e5\u8d85\u8fc7\u6700\u5927\u7b49\u5f85\u65f6\u95f4\u5c06\u4f1a\u629b\u51fa\u8d85\u65f6\u5f02\u5e38;<\/li>\n
      • \u963b\u585e I\/O & \u5373\u65f6\u521b\u5efa\u7ebf\u7a0b\uff1a\u901a\u8fc7\u5c06\u5355\u7ebf\u7a0b\u6a21\u578b\u8fdb\u5316\u4e3a\u591a\u7ebf\u7a0b\u6a21\u578b\uff0c\u89e3\u51b3\u4e86\u8fde\u63a5\u6570\u589e\u591a\u65f6\u7684\u6027\u80fd\u74f6\u9888\uff0c\u56e0\u6b64\u5728\u8fde\u63a5\u6570\u4e3a 50 \u65f6\u5e73\u5747\u54cd\u5e94\u65f6\u95f4\u4ecd\u80fd\u7ef4\u6301\u5728\u6b63\u5e38\u8303\u56f4\uff0c\u4f46\u5f53\u8fde\u63a5\u6570\u9010\u6b65\u4e0a\u5347\u81f3 500 \u548c 5000 \u540e\uff0c\u54cd\u5e94\u65f6\u95f4\u53c8\u8d85\u51fa\u4e86\u6b63\u5e38\u8303\u56f4\uff0c\u6b64\u65f6\u7ebf\u7a0b\u7684\u9891\u7e41\u521b\u5efa\u4e0e\u9500\u6bc1\u6210\u4e3a\u4e86\u6027\u80fd\u74f6\u9888\uff0c\u56e0\u4e3a\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u5728\u521b\u5efa\u7ebf\u7a0b\u7684\u8fc7\u7a0b\u4e2d\u6d89\u53ca\u5185\u5b58\u5206\u914d\u3001\u62f7\u8d1d\u7ebf\u7a0b\u7ed3\u6784\u81f3\u5185\u5b58\u3001\u5217\u5165\u8c03\u5ea6\u7b49\u591a\u9879\u64cd\u4f5c\uff0c\u800c\u5728\u9500\u6bc1\u7ebf\u7a0b\u7684\u8fc7\u7a0b\u4e2d\u6d89\u53ca\u7b49\u5f85\u7ec8\u6b62\u3001\u8d44\u6e90\u5206\u79bb\u3001\u5185\u5b58\u91ca\u653e\u7b49\u591a\u9879\u64cd\u4f5c\uff0c\u53ef\u89c1\u7ebf\u7a0b\u9500\u6bc1\u5177\u6709\u4e00\u5b9a\u7684 CPU \u5f00\u9500\uff0c\u800c\u7ebf\u7a0b\u521b\u5efa\u7684 CPU \u5f00\u9500\u4e0e\u5185\u5b58\u5f00\u9500\u5747\u8f83\u5927\uff0c\u5982\u679c\u5bf9\u6240\u521b\u5efa\u7684\u7ebf\u7a0b\u6570\u91cf\u4e0d\u52a0\u7ea6\u675f\uff0c\u670d\u52a1\u5668\u5f88\u5bb9\u6613\u56e0\u4e3a\u5806\u6808\u6ea2\u51fa\u800c\u53d1\u751f\u5b95\u673a\u3002<\/li>\n
      • \u963b\u585e I\/O & \u7ebf\u7a0b\u6c60\uff1a\u5728\u670d\u52a1\u542f\u52a8\u65f6\u9884\u5148\u521b\u5efa\u4e00\u4e2a\u542b\u6709\u5927\u91cf\u7ebf\u7a0b\u7684\u7ebf\u7a0b\u6c60\uff0c\u5f53\u8bf7\u6c42\u5230\u8fbe\u540e\u4ece\u7ebf\u7a0b\u6c60\u4e2d\u968f\u673a\u9009\u53d6\u4e00\u4e2a\u7a7a\u95f2\u7ebf\u7a0b\u4e3a\u5176\u670d\u52a1\uff0c\u670d\u52a1\u5b8c\u6210\u540e\u5c06\u7ebf\u7a0b\u6807\u8bb0\u4e3a\u7a7a\u95f2\u5e76\u653e\u56de\u6c60\u4e2d\uff0c\u7b49\u5f85\u88ab\u7ebf\u7a0b\u6c60\u8c03\u5ea6\u7ed9\u4e0b\u4e00\u4e2a\u8bf7\u6c42\uff0c\u53ef\u89c1\u8be5\u65b9\u6848\u901a\u8fc7\u7ebf\u7a0b\u6c60\u673a\u5236\u8282\u7ea6\u4e86\u8fd0\u884c\u65f6\u521b\u5efa\u4e0e\u9500\u6bc1\u7ebf\u7a0b\u7684\u5f00\u9500\uff0c\u5e76\u4e14\u53ef\u4ee5\u7edf\u4e00\u7ba1\u7406\u7ebf\u7a0b\u72b6\u6001\u548c\u8c03\u5ea6\u7ebf\u7a0b\u3002\u56e0\u6b64\u8be5\u65b9\u6848\u5728\u8fde\u63a5\u6570\u4e3a 500 \u65f6\u4ecd\u80fd\u4fdd\u8bc1\u8f83\u77ed\u7684\u5e73\u5747\u54cd\u5e94\u65f6\u95f4\uff0c\u4f46\u4e0e I\/O \u591a\u8def\u590d\u7528 & \u7ebf\u7a0b\u6c60\u65b9\u6848\u4ecd\u6709\u4e00\u5b9a\u5dee\u8ddd\uff0c\u539f\u56e0\u662f\u963b\u585e I\/O \u7684\u7ebf\u7a0b\u6a21\u578b\u5728\u53d1\u8d77 I\/O \u540e\u4f1a\u963b\u585e\u7ebf\u7a0b\u76f4\u81f3 I\/O \u5b8c\u6210\uff0c\u5728\u6b64\u671f\u95f4\u5982\u679c\u5176\u5b83\u7ebf\u7a0b\u4e5f\u5747\u4e3a\u963b\u585e\u6001\uff0c\u65b0\u5230\u6765\u7684\u8bf7\u6c42\u5c06\u65e0\u6cd5\u5f97\u5230\u670d\u52a1\uff0c\u53ef\u89c1\u7ebf\u7a0b\u6a21\u578b\u6210\u4e3a\u4e86\u672c\u65b9\u6848\u7684\u6027\u80fd\u74f6\u9888\u3002<\/li>\n
      • I\/O \u591a\u8def\u590d\u7528& \u7ebf\u7a0b\u6c60\uff1a\u5728\u4e3b\u7ebf\u7a0b\u4e2d\u5229\u7528\u5185\u6838\u51fd\u6570 select\/epoll \u76d1\u89c6 I\/O \u7684\u5c31\u7eea\uff0c\u4e00\u65e6 I\/O \u5c31\u7eea\u5373\u5c06 I\/O \u4efb\u52a1\u4ea4\u7531 I\/O \u7ebf\u7a0b\u6c60\u5904\u7406\uff0c\u5b8c\u6210\u540e\u518d\u4ea4\u7531\u4e1a\u52a1\u7ebf\u7a0b\u6c60\u5b8c\u6210\u5177\u4f53\u7684\u4e1a\u52a1\u5904\u7406\uff0c\u5728\u5168\u8fc7\u7a0b\u4e2d I\/O \u7ebf\u7a0b\u6c60\u4e0e\u4e1a\u52a1\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\u4e0d\u88ab\u963b\u585e\uff0c\u800c\u662f\u7531\u901a\u77e5\u7684\u65b9\u5f0f\u89e6\u53d1\u4efb\u52a1\u7684\u6267\u884c\uff0c\u4efb\u52a1\u5b8c\u6210\u540e\u53c8\u7acb\u5373\u653e\u56de\u7ebf\u7a0b\u6c60\u7b49\u5f85\u4e0b\u4e00\u6b21\u7684\u4efb\u52a1\u901a\u77e5\u3002\u53ef\u89c1\u672c\u65b9\u6848\u901a\u8fc7\u76d1\u89c6 I\/O \u5c31\u7eea\u4e0e\u7ebf\u7a0b\u6c60\u914d\u5408\u7684\u65b9\u5f0f\uff0c\u6700\u5927\u9650\u5ea6\u5730\u5229\u7528\u4e86\u591a\u6838 CPU \u8d44\u6e90\uff0c\u4f7f\u5f97\u7ebf\u7a0b\u5728\u539f\u672c\u56e0\u7b49\u5f85 I\/O \u5b8c\u6210\u800c\u53d1\u751f\u963b\u585e\u7684\u65f6\u95f4\u6bb5\u5185\u53ef\u4ee5\u670d\u52a1\u5176\u5b83\u8bf7\u6c42\u3002<\/li>\n<\/ul>\n
        \n
        \n
        <\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
        \n

         <\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

        \u5f15\u8a00 Client\/Server \u67b6\u6784\u4e0b Server \u7aef\u7684\u7ebf\u7a0b\u6a21\u578b\u6709\u7740\u975e\u5e38\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u5b83\u7684\u7ed3\u6784\u76f4\u63a5\u51b3\u5b9a\u4e86\u670d\u52a1 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42,43,67],"tags":[],"_links":{"self":[{"href":"http:\/\/yaochenkun.site\/index.php\/wp-json\/wp\/v2\/posts\/2739"}],"collection":[{"href":"http:\/\/yaochenkun.site\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/yaochenkun.site\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/yaochenkun.site\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/yaochenkun.site\/index.php\/wp-json\/wp\/v2\/comments?post=2739"}],"version-history":[{"count":22,"href":"http:\/\/yaochenkun.site\/index.php\/wp-json\/wp\/v2\/posts\/2739\/revisions"}],"predecessor-version":[{"id":2831,"href":"http:\/\/yaochenkun.site\/index.php\/wp-json\/wp\/v2\/posts\/2739\/revisions\/2831"}],"wp:attachment":[{"href":"http:\/\/yaochenkun.site\/index.php\/wp-json\/wp\/v2\/media?parent=2739"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/yaochenkun.site\/index.php\/wp-json\/wp\/v2\/categories?post=2739"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/yaochenkun.site\/index.php\/wp-json\/wp\/v2\/tags?post=2739"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}