{"id":4883,"date":"2022-03-28T18:44:21","date_gmt":"2022-03-28T10:44:21","guid":{"rendered":"https:\/\/egonlin.com\/?p=4883"},"modified":"2022-04-11T19:10:10","modified_gmt":"2022-04-11T11:10:10","slug":"%e7%ac%ac%e4%b8%83%e7%af%87%ef%bc%9a%e5%8d%8f%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=4883","title":{"rendered":"\u7b2c\u4e03\u7bc7\uff1a\u534f\u7a0b"},"content":{"rendered":"

\u534f\u7a0b<\/h1>\n

\"\"<\/div><\/p>\n

\u4e00\u3001\u5f00\u7bc7\u4ecb\u7ecd<\/h2>\n

\u672c\u8282\u7684\u4e3b\u9898\u662f\u57fa\u4e8e\u5355\u7ebf\u7a0b\u6765\u5b9e\u73b0\u5e76\u53d1\uff0c\u5373\u53ea\u7528\u4e00\u4e2a\u4e3b\u7ebf\u7a0b\uff08\u5f88\u660e\u663e\u53ef\u5229\u7528\u7684cpu\u53ea\u6709\u4e00\u4e2a\uff09\u60c5\u51b5\u4e0b\u5b9e\u73b0\u5e76\u53d1\uff0c\u4e3a\u6b64\u6211\u4eec\u9700\u8981\u5148\u56de\u987e\u4e0b\u5e76\u53d1\u7684\u672c\u8d28\uff1a\u5207\u6362+\u4fdd\u5b58\u72b6\u6001<\/p>\n

CPU\u6b63\u5728\u8fd0\u884c\u4e00\u4e2a\u4efb\u52a1\uff0c\u4f1a\u5728\u4e24\u79cd\u60c5\u51b5\u4e0b\u5207\u8d70\u53bb\u6267\u884c\u5176\u4ed6\u7684\u4efb\u52a1\uff08\u5207\u6362\u7531\u64cd\u4f5c\u7cfb\u7edf\u5f3a\u5236\u63a7\u5236\uff09\uff0c\u4e00\u79cd\u60c5\u51b5\u662f\u8be5\u4efb\u52a1\u53d1\u751f\u4e86\u963b\u585e\uff0c\u53e6\u5916\u4e00\u79cd\u60c5\u51b5\u662f\u8be5\u4efb\u52a1\u8ba1\u7b97\u7684\u65f6\u95f4\u8fc7\u957f\u6216\u6709\u4e00\u4e2a\u4f18\u5148\u7ea7\u66f4\u9ad8\u7684\u7a0b\u5e8f\u66ff\u4ee3\u4e86\u5b83\u3002<\/p>\n

\"\"<\/div><\/p>\n

ps\uff1a\u5728\u4ecb\u7ecd\u8fdb\u7a0b\u7406\u8bba\u65f6\uff0c\u63d0\u53ca\u8fdb\u7a0b\u7684\u4e09\u79cd\u6267\u884c\u72b6\u6001\uff0c\u800c\u7ebf\u7a0b\u624d\u662f\u6267\u884c\u5355\u4f4d\uff0c\u6240\u4ee5\u4e5f\u53ef\u4ee5\u5c06\u4e0a\u56fe\u7406\u89e3\u4e3a\u7ebf\u7a0b\u7684\u4e09\u79cd\u72b6\u6001<\/p>\n

\u4e00\uff1a\u5176\u4e2d\u7b2c\u4e8c\u79cd\u60c5\u51b5\u5e76\u4e0d\u80fd\u63d0\u5347\u6548\u7387\uff0c\u53ea\u662f\u4e3a\u4e86\u8ba9cpu\u80fd\u591f\u96e8\u9732\u5747\u6cbe\uff0c\u5b9e\u73b0\u770b\u8d77\u6765\u6240\u6709\u4efb\u52a1\u90fd\u88ab\u201c\u540c\u65f6\u201d\u6267\u884c\u7684\u6548\u679c\uff0c\u5982\u679c\u591a\u4e2a\u4efb\u52a1\u90fd\u662f\u7eaf\u8ba1\u7b97\u7684\uff0c\u8fd9\u79cd\u5207\u6362\u53cd\u800c\u4f1a\u964d\u4f4e\u6548\u7387\u3002\u4e3a\u6b64\u6211\u4eec\u53ef\u4ee5\u57fa\u4e8eyield\u6765\u9a8c\u8bc1\u3002yield\u672c\u8eab\u5c31\u662f\u4e00\u79cd\u5728\u5355\u7ebf\u7a0b\u4e0b\u53ef\u4ee5\u4fdd\u5b58\u4efb\u52a1\u8fd0\u884c\u72b6\u6001\u7684\u65b9\u6cd5\uff0c\u6211\u4eec\u6765\u7b80\u5355\u590d\u4e60\u4e00\u4e0b\uff1a<\/p>\n

#1 yield\u53ef\u4ee5\u4fdd\u5b58\u72b6\u6001\uff0cyield\u7684\u72b6\u6001\u4fdd\u5b58\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u7684\u4fdd\u5b58\u7ebf\u7a0b\u72b6\u6001\u5f88\u50cf\uff0c\u4f46\u662fyield\u662f\u4ee3\u7801\u7ea7\u522b\u63a7\u5236\u7684\uff0c\u66f4\u8f7b\u91cf\u7ea7
\n<\/strong>#2 send\u53ef\u4ee5\u628a\u4e00\u4e2a\u51fd\u6570\u7684\u7ed3\u679c\u4f20\u7ed9\u53e6\u5916\u4e00\u4e2a\u51fd\u6570\uff0c\u4ee5\u6b64\u5b9e\u73b0\u5355\u7ebf\u7a0b\u5185\u7a0b\u5e8f\u4e4b\u95f4\u7684\u5207\u6362<\/em><\/p>\n

\u5355\u7eaf\u5730\u5207\u6362\u53cd\u800c\u4f1a\u964d\u4f4e\u8fd0\u884c\u6548\u7387<\/p>\n

'''\n1\u3001\u534f\u7a0b\uff1a\n    \u5355\u7ebf\u7a0b\u5b9e\u73b0\u5e76\u53d1\n    \u5728\u5e94\u7528\u7a0b\u5e8f\u91cc\u63a7\u5236\u591a\u4e2a\u4efb\u52a1\u7684\u5207\u6362+\u4fdd\u5b58\u72b6\u6001\n    \u4f18\u70b9\uff1a\n        \u5e94\u7528\u7a0b\u5e8f\u7ea7\u522b\u901f\u5ea6\u8981\u8fdc\u8fdc\u9ad8\u4e8e\u64cd\u4f5c\u7cfb\u7edf\u7684\u5207\u6362\n    \u7f3a\u70b9\uff1a\n        \u591a\u4e2a\u4efb\u52a1\u4e00\u65e6\u6709\u4e00\u4e2a\u963b\u585e\u6ca1\u6709\u5207\uff0c\u6574\u4e2a\u7ebf\u7a0b\u90fd\u963b\u585e\u5728\u539f\u5730\n        \u8be5\u7ebf\u7a0b\u5185\u7684\u5176\u4ed6\u7684\u4efb\u52a1\u90fd\u4e0d\u80fd\u6267\u884c\u4e86\n\n        \u4e00\u65e6\u5f15\u5165\u534f\u7a0b\uff0c\u5c31\u9700\u8981\u68c0\u6d4b\u5355\u7ebf\u7a0b\u4e0b\u6240\u6709\u7684IO\u884c\u4e3a,\n        \u5b9e\u73b0\u9047\u5230IO\u5c31\u5207\u6362,\u5c11\u4e00\u4e2a\u90fd\u4e0d\u884c\uff0c\u56e0\u4e3a\u4e00\u65e6\u4e00\u4e2a\u4efb\u52a1\u963b\u585e\u4e86\uff0c\u6574\u4e2a\u7ebf\u7a0b\u5c31\u963b\u585e\u4e86\uff0c\n        \u5176\u4ed6\u7684\u4efb\u52a1\u5373\u4fbf\u662f\u53ef\u4ee5\u8ba1\u7b97\uff0c\u4f46\u662f\u4e5f\u65e0\u6cd5\u8fd0\u884c\u4e86\n\n2\u3001\u534f\u7a0b\u7684\u76ee\u7684\uff1a\n    \u60f3\u8981\u5728\u5355\u7ebf\u7a0b\u4e0b\u5b9e\u73b0\u5e76\u53d1\n    \u5e76\u53d1\u6307\u7684\u662f\u591a\u4e2a\u4efb\u52a1\u770b\u8d77\u6765\u662f\u540c\u65f6\u8fd0\u884c\u7684\n    \u5e76\u53d1 = \u5207\u6362 + \u4fdd\u5b58\u72b6\u6001\n'''\n\n# \u4e32\u884c\u6267\u884c\nimport time\n\ndef func1():\n    for i in range(10000000):\n        i+1\n\ndef func2():\n    for i in range(10000000):\n        i+1\n\nstart = time.time()\nfunc1()\nfunc2()\nstop = time.time()\nprint(stop - start)\n\n# \u57fa\u4e8eyield\u5e76\u53d1\u6267\u884c\nimport time\ndef func1():\n    while True:\n        yield\n\ndef func2():\n    g = func1()\n    for i in range(10000000):\n        i+1\n        next(g)\n\nstart=time.time()\nfunc2()\nstop=time.time()\nprint(stop-start)<\/code><\/pre>\n
\u4e8c\uff1a\u7b2c\u4e00\u79cd\u60c5\u51b5\u7684\u5207\u6362\u3002\u5728\u4efb\u52a1\u4e00\u9047\u5230IO\u60c5\u51b5\u4e0b\uff0c\u5207\u5230\u4efb\u52a1\u4e8c\u53bb\u6267\u884c\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u5229\u7528\u4efb\u52a1\u4e00\u963b\u585e\u7684\u65f6\u95f4\u5b8c\u6210\u4efb\u52a1\u4e8c\u7684\u8ba1\u7b97\uff0c\u6548\u7387\u7684\u63d0\u5347\u5c31\u5728\u4e8e\u6b64\u3002<\/p>\n
yield\u4e0d\u80fd\u68c0\u6d4bIO\uff0c\u5b9e\u73b0\u9047\u5230IO\u81ea\u52a8\u5207\u6362<\/p>\n
import time\ndef func1():\n    while True:\n        print('func1')\n        yield\n\ndef func2():\n    g=func1()\n    for i in range(10000000):\n        i+1\n        next(g)\n        time.sleep(3)\n        print('func2')\nstart=time.time()\nfunc2()\nstop=time.time()\nprint(stop-start)<\/code><\/pre>\n
*\u5bf9\u4e8e\u5355\u7ebf\u7a0b\u4e0b\uff0c\u6211\u4eec\u4e0d\u53ef\u907f\u514d\u7a0b\u5e8f\u4e2d\u51fa\u73b0IO\u64cd\u4f5c\uff0c\u4f46\u5982\u679c\u6211\u4eec\u80fd\u5728\u81ea\u5df1\u7684\u7a0b\u5e8f\u4e2d\uff08\u5373\u7528\u6237\u7a0b\u5e8f\u7ea7\u522b\uff0c\u800c\u975e\u64cd\u4f5c\u7cfb\u7edf\u7ea7\u522b\uff09\u63a7\u5236\u5355\u7ebf\u7a0b\u4e0b\u7684\u591a\u4e2a\u4efb\u52a1\u80fd\u5728\u4e00\u4e2a\u4efb\u52a1\u9047\u5230io\u963b\u585e\u65f6\u5c31\u5207\u6362\u5230\u53e6\u5916\u4e00\u4e2a\u4efb\u52a1\u53bb\u8ba1\u7b97\uff0c\u8fd9\u6837\u5c31\u4fdd\u8bc1\u4e86\u8be5\u7ebf\u7a0b\u80fd\u591f\u6700\u5927\u9650\u5ea6\u5730\u5904\u4e8e\u5c31\u7eea\u6001\uff0c\u5373\u968f\u65f6\u90fd\u53ef\u4ee5\u88abcpu\u6267\u884c\u7684\u72b6\u6001\uff0c\u76f8\u5f53\u4e8e\u6211\u4eec\u5728\u7528\u6237\u7a0b\u5e8f\u7ea7\u522b\u5c06\u81ea\u5df1\u7684IO\u64cd\u4f5c\u6700\u5927\u9650\u5ea6\u5730\u9690\u85cf\u8d77\u6765\uff0c\u4ece\u800c\u53ef\u4ee5\u8ff7\u60d1\u64cd\u4f5c\u7cfb\u7edf\uff0c\u8ba9\u5176\u770b\u5230\uff1a\u8be5\u7ebf\u7a0b\u597d\u50cf\u662f\u4e00\u76f4\u5728\u8ba1\u7b97\uff0cIO\u6bd4\u8f83\u5c11\uff0c\u4ece\u800c\u66f4\u591a\u7684\u5c06cpu\u7684\u6267\u884c\u6743\u9650\u5206\u914d\u7ed9\u6211\u4eec\u7684\u7ebf\u7a0b\u3002*<\/em><\/strong><\/p>\n
\u534f\u7a0b\u7684\u672c\u8d28\u5c31\u662f\u5728\u5355\u7ebf\u7a0b\u4e0b\uff0c\u7531\u7528\u6237\u81ea\u5df1\u63a7\u5236\u4e00\u4e2a\u4efb\u52a1\u9047\u5230io\u963b\u585e\u4e86\u5c31\u5207\u6362\u53e6\u5916\u4e00\u4e2a\u4efb\u52a1\u53bb\u6267\u884c\uff0c\u4ee5\u6b64\u6765\u63d0\u5347\u6548\u7387\u3002\u4e3a\u4e86\u5b9e\u73b0\u5b83\uff0c\u6211\u4eec\u9700\u8981\u627e\u5bfb\u4e00\u79cd\u53ef\u4ee5\u540c\u65f6\u6ee1\u8db3\u4ee5\u4e0b\u6761\u4ef6\u7684\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n
*#1. \u53ef\u4ee5\u63a7\u5236\u591a\u4e2a\u4efb\u52a1\u4e4b\u95f4\u7684\u5207\u6362\uff0c\u5207\u6362\u4e4b\u524d\u5c06\u4efb\u52a1\u7684\u72b6\u6001\u4fdd\u5b58\u4e0b\u6765\uff0c\u4ee5\u4fbf\u91cd\u65b0\u8fd0\u884c\u65f6\uff0c\u53ef\u4ee5\u57fa\u4e8e\u6682\u505c\u7684\u4f4d\u7f6e\u7ee7\u7eed\u6267\u884c\u3002
\n<\/strong>
\n*#2. \u4f5c\u4e3a1\u7684\u8865\u5145\uff1a\u53ef\u4ee5\u68c0\u6d4bIO\u64cd\u4f5c\uff0c\u5728\u9047\u5230IO\u64cd\u4f5c\u7684\u60c5\u51b5\u4e0b\u624d\u53d1\u751f\u5207\u6362<\/em><\/p>\n
\u4e8c\u3001\u534f\u7a0b\u4ecb\u7ecd<\/h2>\n
\u534f\u7a0b\uff1a\u662f\u5355\u7ebf\u7a0b\u4e0b\u7684\u5e76\u53d1\uff0c\u53c8\u79f0\u5fae\u7ebf\u7a0b\uff0c\u7ea4\u7a0b\u3002\u82f1\u6587\u540dCoroutine\u3002<\/p>\n
\u4e00\u53e5\u8bdd\u8bf4\u660e\u4ec0\u4e48\u662f\u7ebf\u7a0b\uff1a*\u534f\u7a0b\u662f\u4e00\u79cd\u7528\u6237\u6001\u7684\u8f7b\u91cf\u7ea7\u7ebf\u7a0b\uff0c\u5373\u534f\u7a0b\u662f\u7531\u7528\u6237\u7a0b\u5e8f\u81ea\u5df1\u63a7\u5236\u8c03\u5ea6\u7684\u3002*<\/em><\/strong><\/p>\n
\u9700\u8981\u5f3a\u8c03\u7684\u662f\uff1a<\/p>\n
#1. python\u7684\u7ebf\u7a0b\u5c5e\u4e8e\u5185\u6838\u7ea7\u522b\u7684\uff0c\u5373\u7531\u64cd\u4f5c\u7cfb\u7edf\u63a7\u5236\u8c03\u5ea6\uff08\u5982\u5355\u7ebf\u7a0b\u9047\u5230io\u6216\u6267\u884c\u65f6\u95f4\u8fc7\u957f\u5c31\u4f1a\u88ab\u8feb\u4ea4\u51facpu\u6267\u884c\u6743\u9650\uff0c\u5207\u6362\u5176\u4ed6\u7ebf\u7a0b\u8fd0\u884c\uff09
\n<\/strong>#2. \u5355\u7ebf\u7a0b\u5185\u5f00\u542f\u534f\u7a0b\uff0c\u4e00\u65e6\u9047\u5230io\uff0c\u5c31\u4f1a\u4ece\u5e94\u7528\u7a0b\u5e8f\u7ea7\u522b\uff08\u800c\u975e\u64cd\u4f5c\u7cfb\u7edf\uff09\u63a7\u5236\u5207\u6362\uff0c\u4ee5\u6b64\u6765\u63d0\u5347\u6548\u7387\uff08\uff01\uff01\uff01\u975eio\u64cd\u4f5c\u7684\u5207\u6362\u4e0e\u6548\u7387\u65e0\u5173\uff09<\/em><\/p>\n
\u5bf9\u6bd4\u64cd\u4f5c\u7cfb\u7edf\u63a7\u5236\u7ebf\u7a0b\u7684\u5207\u6362\uff0c\u7528\u6237\u5728\u5355\u7ebf\u7a0b\u5185\u63a7\u5236\u534f\u7a0b\u7684\u5207\u6362<\/p>\n
\u4f18\u70b9\u5982\u4e0b\uff1a<\/p>\n
#1. \u534f\u7a0b\u7684\u5207\u6362\u5f00\u9500\u66f4\u5c0f\uff0c\u5c5e\u4e8e\u7a0b\u5e8f\u7ea7\u522b\u7684\u5207\u6362\uff0c\u64cd\u4f5c\u7cfb\u7edf\u5b8c\u5168\u611f\u77e5\u4e0d\u5230\uff0c\u56e0\u800c\u66f4\u52a0\u8f7b\u91cf\u7ea7
\n<\/strong>#2. \u5355\u7ebf\u7a0b\u5185\u5c31\u53ef\u4ee5\u5b9e\u73b0\u5e76\u53d1\u7684\u6548\u679c\uff0c\u6700\u5927\u9650\u5ea6\u5730\u5229\u7528cpu<\/em><\/p>\n
\u7f3a\u70b9\u5982\u4e0b\uff1a<\/p>\n
#1. \u534f\u7a0b\u7684\u672c\u8d28\u662f\u5355\u7ebf\u7a0b\u4e0b\uff0c\u65e0\u6cd5\u5229\u7528\u591a\u6838\uff0c\u53ef\u4ee5\u662f\u4e00\u4e2a\u7a0b\u5e8f\u5f00\u542f\u591a\u4e2a\u8fdb\u7a0b\uff0c\u6bcf\u4e2a\u8fdb\u7a0b\u5185\u5f00\u542f\u591a\u4e2a\u7ebf\u7a0b\uff0c\u6bcf\u4e2a\u7ebf\u7a0b\u5185\u5f00\u542f\u534f\u7a0b
\n<\/strong>#2. \u534f\u7a0b\u6307\u7684\u662f\u5355\u4e2a\u7ebf\u7a0b\uff0c\u56e0\u800c\u4e00\u65e6\u534f\u7a0b\u51fa\u73b0\u963b\u585e\uff0c\u5c06\u4f1a\u963b\u585e\u6574\u4e2a\u7ebf\u7a0b<\/em><\/p>\n
\u603b\u7ed3\u534f\u7a0b\u7279\u70b9\uff1a<\/p>\n
*\u5fc5\u987b\u5728\u53ea\u6709\u4e00\u4e2a\u5355\u7ebf\u7a0b\u91cc\u5b9e\u73b0\u5e76\u53d1*<\/em><\/strong><\/p>\n
*\u4fee\u6539\u5171\u4eab\u6570\u636e\u4e0d\u9700\u52a0\u9501*<\/em><\/strong><\/p>\n
*\u7528\u6237\u7a0b\u5e8f\u91cc\u81ea\u5df1\u4fdd\u5b58\u591a\u4e2a\u63a7\u5236\u6d41\u7684\u4e0a\u4e0b\u6587\u6808*<\/em><\/strong><\/p>\n
*\u9644\u52a0\uff1a\u4e00\u4e2a\u534f\u7a0b\u9047\u5230IO\u64cd\u4f5c\u81ea\u52a8\u5207\u6362\u5230\u5176\u5b83\u534f\u7a0b\uff08\u5982\u4f55\u5b9e\u73b0\u68c0\u6d4bIO\uff0cyield\u3001greenlet\u90fd\u65e0\u6cd5\u5b9e\u73b0\uff0c\u5c31\u7528\u5230\u4e86gevent\u6a21\u5757\uff08select\u673a\u5236\uff09\uff09*<\/em><\/strong><\/p>\n
\u4e09\u3001Greenlet<\/h2>\n
\u5982\u679c\u6211\u4eec\u5728\u5355\u4e2a\u7ebf\u7a0b\u5185\u670920\u4e2a\u4efb\u52a1\uff0c\u8981\u60f3\u5b9e\u73b0\u5728\u591a\u4e2a\u4efb\u52a1\u4e4b\u95f4\u5207\u6362\uff0c\u4f7f\u7528yield\u751f\u6210\u5668\u7684\u65b9\u5f0f\u8fc7\u4e8e\u9ebb\u70e6\uff08\u9700\u8981\u5148\u5f97\u5230\u521d\u59cb\u5316\u4e00\u6b21\u7684\u751f\u6210\u5668\uff0c\u7136\u540e\u518d\u8c03\u7528send\u3002\u3002\u3002\u975e\u5e38\u9ebb\u70e6\uff09\uff0c\u800c\u4f7f\u7528greenlet\u6a21\u5757\u53ef\u4ee5\u975e\u5e38\u7b80\u5355\u5730\u5b9e\u73b0\u8fd920\u4e2a\u4efb\u52a1\u76f4\u63a5\u7684\u5207\u6362<\/p>\n
#\u5b89\u88c5\npip3 install greenlet\nfrom greenlet import greenlet\n\ndef eat(name):\n    print('%s eat 1' %name)\n    g2.switch('egon')\n    print('%s eat 2' %name)\n    g2.switch()\ndef play(name):\n    print('%s play 1' %name)\n    g1.switch()\n    print('%s play 2' %name)\n\ng1=greenlet(eat)\ng2=greenlet(play)\n\ng1.switch('egon')#\u53ef\u4ee5\u5728\u7b2c\u4e00\u6b21switch\u65f6\u4f20\u5165\u53c2\u6570\uff0c\u4ee5\u540e\u90fd\u4e0d\u9700\u8981<\/code><\/pre>\n
\u5355\u7eaf\u7684\u5207\u6362\uff08\u5728\u6ca1\u6709io\u7684\u60c5\u51b5\u4e0b\u6216\u8005\u6ca1\u6709\u91cd\u590d\u5f00\u8f9f\u5185\u5b58\u7a7a\u95f4\u7684\u64cd\u4f5c\uff09\uff0c\u53cd\u800c\u4f1a\u964d\u4f4e\u7a0b\u5e8f\u7684\u6267\u884c\u901f\u5ea6<\/p>\n
#\u987a\u5e8f\u6267\u884c\nimport time\ndef f1():\n    res=1\n    for i in range(100000000):\n        res+=i\n\ndef f2():\n    res=1\n    for i in range(100000000):\n        res*=i\n\nstart=time.time()\nf1()\nf2()\nstop=time.time()\nprint('run time is %s' %(stop-start)) #10.985628366470337\n\n#\u5207\u6362\nfrom greenlet import greenlet\nimport time\ndef f1():\n    res=1\n    for i in range(100000000):\n        res+=i\n        g2.switch()\n\ndef f2():\n    res=1\n    for i in range(100000000):\n        res*=i\n        g1.switch()\n\nstart=time.time()\ng1=greenlet(f1)\ng2=greenlet(f2)\ng1.switch()\nstop=time.time()\nprint('run time is %s' %(stop-start)) # 52.763017892837524<\/code><\/pre>\n
greenlet\u53ea\u662f\u63d0\u4f9b\u4e86\u4e00\u79cd\u6bd4generator\u66f4\u52a0\u4fbf\u6377\u7684\u5207\u6362\u65b9\u5f0f\uff0c\u5f53\u5207\u5230\u4e00\u4e2a\u4efb\u52a1\u6267\u884c\u65f6\u5982\u679c\u9047\u5230io\uff0c\u90a3\u5c31\u539f\u5730\u963b\u585e\uff0c\u4ecd\u7136\u662f\u6ca1\u6709\u89e3\u51b3\u9047\u5230IO\u81ea\u52a8\u5207\u6362\u6765\u63d0\u5347\u6548\u7387\u7684\u95ee\u9898\u3002<\/p>\n
\u5355\u7ebf\u7a0b\u91cc\u7684\u8fd920\u4e2a\u4efb\u52a1\u7684\u4ee3\u7801\u901a\u5e38\u4f1a\u65e2\u6709\u8ba1\u7b97\u64cd\u4f5c\u53c8\u6709\u963b\u585e\u64cd\u4f5c\uff0c\u6211\u4eec\u5b8c\u5168\u53ef\u4ee5\u5728\u6267\u884c\u4efb\u52a11\u65f6\u9047\u5230\u963b\u585e\uff0c\u5c31\u5229\u7528\u963b\u585e\u7684\u65f6\u95f4\u53bb\u6267\u884c\u4efb\u52a12\u3002\u3002\u3002\u3002\u5982\u6b64\uff0c\u624d\u80fd\u63d0\u9ad8\u6548\u7387\uff0c\u8fd9\u5c31\u7528\u5230\u4e86Gevent\u6a21\u5757\u3002<\/p>\n
\u56db\u3001Gevent\u4ecb\u7ecd<\/h2>\n
*#\u5b89\u88c5*
\n<\/em>pip3 install gevent<\/p>\n
Gevent \u662f\u4e00\u4e2a\u7b2c\u4e09\u65b9\u5e93\uff0c\u53ef\u4ee5\u8f7b\u677e\u901a\u8fc7gevent\u5b9e\u73b0\u5e76\u53d1\u540c\u6b65\u6216\u5f02\u6b65\u7f16\u7a0b\uff0c\u5728gevent\u4e2d\u7528\u5230\u7684\u4e3b\u8981\u6a21\u5f0f\u662f*Greenlet*<\/em><\/strong>, \u5b83\u662f\u4ee5C\u6269\u5c55\u6a21\u5757\u5f62\u5f0f\u63a5\u5165Python\u7684\u8f7b\u91cf\u7ea7\u534f\u7a0b\u3002 Greenlet\u5168\u90e8\u8fd0\u884c\u5728\u4e3b\u7a0b\u5e8f\u64cd\u4f5c\u7cfb\u7edf\u8fdb\u7a0b\u7684\u5185\u90e8\uff0c\u4f46\u5b83\u4eec\u88ab\u534f\u4f5c\u5f0f\u5730\u8c03\u5ea6\u3002<\/p>\n
#\u7528\u6cd5\ng1=gevent.spawn(func,1,,2,3,x=4,y=5)\u521b\u5efa\u4e00\u4e2a\u534f\u7a0b\u5bf9\u8c61g1\uff0cspawn\u62ec\u53f7\u5185\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u51fd\u6570\u540d\uff0c\u5982eat\uff0c\u540e\u9762\u53ef\u4ee5\u6709\u591a\u4e2a\u53c2\u6570\uff0c\u53ef\u4ee5\u662f\u4f4d\u7f6e\u5b9e\u53c2\u6216\u5173\u952e\u5b57\u5b9e\u53c2\uff0c\u90fd\u662f\u4f20\u7ed9\u51fd\u6570eat\u7684\n\ng2=gevent.spawn(func2)\n\ng1.join() #\u7b49\u5f85g1\u7ed3\u675f\n\ng2.join() #\u7b49\u5f85g2\u7ed3\u675f\n\n#\u6216\u8005\u4e0a\u8ff0\u4e24\u6b65\u5408\u4f5c\u4e00\u6b65\uff1agevent.joinall([g1,g2])\n\ng1.value#\u62ff\u5230func1\u7684\u8fd4\u56de\u503c<\/code><\/pre>\n
*\u9047\u5230IO\u963b\u585e\u65f6\u4f1a\u81ea\u52a8\u5207\u6362\u4efb\u52a1*<\/em><\/strong><\/p>\n
import gevent\ndef eat(name):\n    print('%s eat 1' %name)\n    gevent.sleep(2)\n    print('%s eat 2' %name)\n\ndef play(name):\n    print('%s play 1' %name)\n    gevent.sleep(1)\n    print('%s play 2' %name)\n\ng1=gevent.spawn(eat,'egon')\ng2=gevent.spawn(play,name='egon')\ng1.join()\ng2.join()\n#\u6216\u8005gevent.joinall([g1,g2])\nprint('\u4e3b')<\/code><\/pre>\n
*\u4e0a\u4f8bgevent.sleep(2)\u6a21\u62df\u7684\u662fgevent\u53ef\u4ee5\u8bc6\u522b\u7684io\u963b\u585e,*<\/em><\/strong><\/p>\n
*\u800ctime.sleep(2)\u6216\u5176\u4ed6\u7684\u963b\u585e,gevent\u662f\u4e0d\u80fd\u76f4\u63a5\u8bc6\u522b\u7684\u9700\u8981\u7528\u4e0b\u9762\u4e00\u884c\u4ee3\u7801,\u6253\u8865\u4e01,\u5c31\u53ef\u4ee5\u8bc6\u522b\u4e86*<\/em><\/strong><\/p>\n
*from gevent import monkey;monkey.patch_all()\u5fc5\u987b\u653e\u5230\u88ab\u6253\u8865\u4e01\u8005\u7684\u524d\u9762\uff0c\u5982time\uff0csocket\u6a21\u5757\u4e4b\u524d*<\/em><\/strong><\/p>\n
*\u6216\u8005\u6211\u4eec\u5e72\u8106\u8bb0\u5fc6\u6210\uff1a\u8981\u7528gevent\uff0c\u9700\u8981\u5c06from gevent import monkey; monkey.patch_all()\u653e\u5230\u6587\u4ef6\u7684\u5f00\u5934*<\/em><\/strong><\/p>\n
from gevent import monkey;monkey.patch_all()\n\nimport gevent\nimport time\ndef eat():\n    print('eat food 1')\n    time.sleep(2)\n    print('eat food 2')\n\ndef play():\n    print('play 1')\n    time.sleep(1)\n    print('play 2')\n\ng1=gevent.spawn(eat)\ng2=gevent.spawn(play_phone)\ngevent.joinall([g1,g2])\nprint('\u4e3b')<\/code><\/pre>\n
\u6211\u4eec\u53ef\u4ee5\u7528threading.current_thread().getName()\u6765\u67e5\u770b\u6bcf\u4e2ag1\u548cg2\uff0c\u67e5\u770b\u7684\u7ed3\u679c\u4e3aDummyThread-n\uff0c\u5373\u5047\u7ebf\u7a0b<\/p>\n
\u4e94\u3001Gevent\u4e4b\u540c\u6b65\u4e0e\u5f02\u6b65<\/h2>\n
from gevent import spawn,joinall,monkey;monkey.patch_all()\n\nimport time\ndef task(pid):\n    """\n    Some non-deterministic task\n    """\n    time.sleep(0.5)\n    print('Task %s done' % pid)\n\ndef synchronous():\n    for i in range(10):\n        task(i)\n\ndef asynchronous():\n    g_l=[spawn(task,i) for i in range(10)]\n    joinall(g_l)\n\nif __name__ == '__main__':\n    print('Synchronous:')\n    synchronous()\n\n    print('Asynchronous:')\n    asynchronous()\n#\u4e0a\u9762\u7a0b\u5e8f\u7684\u91cd\u8981\u90e8\u5206\u662f\u5c06task\u51fd\u6570\u5c01\u88c5\u5230Greenlet\u5185\u90e8\u7ebf\u7a0b\u7684gevent.spawn\u3002 \u521d\u59cb\u5316\u7684greenlet\u5217\u8868\u5b58\u653e\u5728\u6570\u7ec4threads\u4e2d\uff0c\u6b64\u6570\u7ec4\u88ab\u4f20\u7ed9gevent.joinall \u51fd\u6570\uff0c\u540e\u8005\u963b\u585e\u5f53\u524d\u6d41\u7a0b\uff0c\u5e76\u6267\u884c\u6240\u6709\u7ed9\u5b9a\u7684greenlet\u3002\u6267\u884c\u6d41\u7a0b\u53ea\u4f1a\u5728 \u6240\u6709greenlet\u6267\u884c\u5b8c\u540e\u624d\u4f1a\u7ee7\u7eed\u5411\u4e0b\u8d70\u3002<\/code><\/pre>\n
\u516d\u3001Gevent\u4e4b\u5e94\u7528\u4e3e\u4f8b\u4e00<\/h2>\n
\u534f\u7a0b\u5e94\u7528\uff1a\u722c\u866b<\/p>\n
from gevent import monkey;monkey.patch_all()\nimport gevent\nimport requests\nimport time\n\ndef get_page(url):\n    print('GET: %s' %url)\n    response=requests.get(url)\n    if response.status_code == 200:\n        print('%d bytes received from %s' %(len(response.text),url))\n\nstart_time=time.time()\ngevent.joinall([\n    gevent.spawn(get_page,'https:\/\/www.python.org\/'),\n    gevent.spawn(get_page,'https:\/\/www.yahoo.com\/'),\n    gevent.spawn(get_page,'https:\/\/github.com\/'),\n])\nstop_time=time.time()\nprint('run time is %s' %(stop_time-start_time))<\/code><\/pre>\n
\u4e03\u3001Gevent\u4e4b\u5e94\u7528\u4e3e\u4f8b\u4e8c<\/h2>\n
\u901a\u8fc7gevent\u5b9e\u73b0\u5355\u7ebf\u7a0b\u4e0b\u7684socket\u5e76\u53d1\uff08from gevent import monkey;monkey.patch_all()\u4e00\u5b9a\u8981\u653e\u5230\u5bfc\u5165socket\u6a21\u5757\u4e4b\u524d\uff0c\u5426\u5219gevent\u65e0\u6cd5\u8bc6\u522bsocket\u7684\u963b\u585e\uff09<\/code><\/pre>\n
\u670d\u52a1\u7aef<\/p>\n
from gevent import monkey;monkey.patch_all()\nfrom socket import *\nimport gevent\n\n# \u5982\u679c\u4e0d\u60f3\u7528money.patch_all()\u6253\u8865\u4e01,\u53ef\u4ee5\u7528gevent\u81ea\u5e26\u7684socket\n# from gevent import socket\n# s=socket.socket()\n\ndef server(server_ip,port):\n    s=socket(AF_INET,SOCK_STREAM)\n    s.setsockopt(SOL_SOCKET,SO_REUSEADDR,1)\n    s.bind((server_ip,port))\n    s.listen(5)\n    while True:\n        conn,addr=s.accept()\n        gevent.spawn(talk,conn,addr)\n\ndef talk(conn,addr):\n    try:\n        while True:\n            res=conn.recv(1024)\n            print('client %s:%s msg: %s' %(addr[0],addr[1],res))\n            conn.send(res.upper())\n    except Exception as e:\n        print(e)\n    finally:\n        conn.close()\n\nif __name__ == '__main__':\n    server('127.0.0.1',8080)<\/code><\/pre>\n
\u5ba2\u6237\u7aef<\/p>\n
#_*_coding:utf-8_*_\n__author__ = 'Linhaifeng'\n\nfrom socket import *\n\nclient=socket(AF_INET,SOCK_STREAM)\nclient.connect(('127.0.0.1',8080))\n\nwhile True:\n    msg=input('>>: ').strip()\n    if not msg:continue\n\n    client.send(msg.encode('utf-8'))\n    msg=client.recv(1024)\n    print(msg.decode('utf-8'))<\/code><\/pre>\n
\u591a\u7ebf\u7a0b\u5e76\u53d1\u591a\u4e2a\u5ba2\u6237\u7aef<\/p>\n
from threading import Thread\nfrom socket import *\nimport threading\n\ndef client(server_ip,port):\n    c=socket(AF_INET,SOCK_STREAM) #\u5957\u63a5\u5b57\u5bf9\u8c61\u4e00\u5b9a\u8981\u52a0\u5230\u51fd\u6570\u5185\uff0c\u5373\u5c40\u90e8\u540d\u79f0\u7a7a\u95f4\u5185\uff0c\u653e\u5728\u51fd\u6570\u5916\u5219\u88ab\u6240\u6709\u7ebf\u7a0b\u5171\u4eab\uff0c\u5219\u5927\u5bb6\u516c\u7528\u4e00\u4e2a\u5957\u63a5\u5b57\u5bf9\u8c61\uff0c\u90a3\u4e48\u5ba2\u6237\u7aef\u7aef\u53e3\u6c38\u8fdc\u4e00\u6837\u4e86\n    c.connect((server_ip,port))\n\n    count=0\n    while True:\n        c.send(('%s say hello %s' %(threading.current_thread().getName(),count)).encode('utf-8'))\n        msg=c.recv(1024)\n        print(msg.decode('utf-8'))\n        count+=1\nif __name__ == '__main__':\n    for i in range(500):\n        t=Thread(target=client,args=('127.0.0.1',8080))\n        t.start()<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u534f\u7a0b \u4e00\u3001\u5f00\u7bc7\u4ecb\u7ecd \u672c\u8282\u7684\u4e3b\u9898\u662f\u57fa\u4e8e\u5355\u7ebf\u7a0b\u6765\u5b9e\u73b0\u5e76\u53d1\uff0c\u5373\u53ea\u7528\u4e00\u4e2a\u4e3b\u7ebf\u7a0b\uff08\u5f88\u660e\u663e\u53ef\u5229\u7528\u7684cpu\u53ea\u6709\u4e00\u4e2a\uff09\u60c5\u51b5\u4e0b\u5b9e […]<\/p>\n","protected":false},"author":3,"featured_media":6733,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[3,281,370],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/4883"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4883"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/4883\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/6733"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4883"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4883"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4883"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}