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\u201c\u5206\u7247\u201d \u4e86\uff0c\u4ee3\u7801\u5199\u7684\u4e0d\u662f \u201c\u4e00\u6c14\u5475\u6210\u201d \u8fd9\u79cd\u3002 \u800c\u662f\u6bcf\u6b21\u6765\u6bb5\u6570\u636e\u5c31\u8981\u5224\u65ad \u6570\u636e\u591f\u4e0d\u591f\u5904\u7406\u54c7\uff0c\u591f\u5904\u7406\u5c31\u5904\u7406\u5427\uff0c\u4e0d\u591f\u5904\u7406\u5c31\u5728\u7b49\u7b49\u5427\u3002\u8fd9\u6837\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u5f88\u4f4e\uff0c\u5176\u5b9e\u4e5f\u4e0d\u7b26\u5408\u4eba\u7c7b\u7684\u4e60\u60ef\u3002 <\/p>\n<p>\u4f46\u662f\u534f\u7a0b\u53ef\u4ee5\u5f88\u597d\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002\u6bd4\u5982 \u628a\u4e00\u4e2aIO\u64cd\u4f5c \u5199\u6210\u4e00\u4e2a\u534f\u7a0b\u3002\u5f53\u89e6\u53d1IO\u64cd\u4f5c\u7684\u65f6\u5019\u5c31\u81ea\u52a8\u8ba9\u51faCPU\u7ed9\u5176\u4ed6\u534f\u7a0b\u3002\u8981\u77e5\u9053\u534f\u7a0b\u7684\u5207\u6362\u5f88\u8f7b\u7684\u3002\u534f\u7a0b\u901a\u8fc7\u8fd9\u79cd\u5bf9\u5f02\u6b65IO\u7684\u5c01\u88c5 \u65e2\u4fdd\u7559\u4e86\u6027\u80fd\u4e5f\u4fdd\u8bc1\u4e86\u4ee3\u7801\u7684 \u5bb9\u6613\u7f16\u5199\u548c\u53ef\u8bfb\u6027\u3002\u5728\u9ad8IO\u5bc6\u96c6\u578b\u7684\u7a0b\u5e8f\u4e0b\u5f88\u597d\u3002\u4f46\u662f\u9ad8CPU\u5bc6\u96c6\u578b\u7684\u7a0b\u5e8f\u4e0b\u6ca1\u5565\u597d\u5904\u3002<\/p>\n<p>\u626f\u5b8c \u788e\u89c9&#8230;&#8230;&#8230;&#8230;&#8230; \u624b\u9178<br \/>\n&#8212;&#8212;&#8212;&#8212;&#8212;\u672a\u5b8c\u5f85\u7eed&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>\u4f5c\u8005\uff1afleuria<br \/>\n\u94fe\u63a5\uff1ahttps:\/\/www.zhihu.com\/question\/32218874\/answer\/55151946<br \/>\n\u6765\u6e90\uff1a\u77e5\u4e4e<br \/>\n\u8457\u4f5c\u6743\u5f52\u4f5c\u8005\u6240\u6709\uff0c\u8f6c\u8f7d\u8bf7\u8054\u7cfb\u4f5c\u8005\u83b7\u5f97\u6388\u6743\u3002<\/p>\n<p>\u6709\u65f6\u5019\u603b\u89c9\u5f97 gevent \u8fd9\u7c7b\u534f\u7a0b\u5e93\u662f\u88ab python \u7684 GIL \u903c\u51fa\u6765\u7684\uff0c\u5982\u679c\u539f\u751f\u7ebf\u7a0b\u652f\u6301\u8db3\u591f\u597d\uff0c\u534f\u7a0b\u7684\u5fc5\u8981\u6027\u53ef\u80fd\u5e76\u4e0d\u4e00\u5b9a\u5f88\u5927\u3002<\/p>\n<p>\u534f\u7a0b\u6700\u65e9\u6765\u81ea\u9ad8\u6027\u80fd\u8ba1\u7b97\u9886\u57df\u7684\u6210\u529f\u6848\u4f8b\uff0c\u534f\u4f5c\u5f0f\u8c03\u5ea6\u76f8\u6bd4\u62a2\u5360\u5f0f\u8c03\u5ea6\u800c\u8a00\uff0c\u53ef\u4ee5\u5728\u727a\u7272\u516c\u5e73\u6027\u65f6\u6362\u53d6\u541e\u5410\u3002<\/p>\n<p>\u5728\u4e92\u8054\u7f51\u884c\u4e1a\u9762\u4e34 C10K \u95ee\u9898\u65f6\uff0c\u7ebf\u7a0b\u65b9\u6848\u4e0d\u8db3\u4ee5\u625b\u4f4f\u5927\u91cf\u7684\u5e76\u53d1\uff0c\u8fd9\u65f6\u7684\u89e3\u51b3\u65b9\u6848\u662f epoll() \u5f0f\u7684\u4e8b\u4ef6\u5faa\u73af\uff0cnginx \u5728\u8fd9\u6ce2\u6f6e\u6d41\u4e2d\u987a\u5229\u6362\u6389 apache \u4e0a\u4f4d\u3002\u540c\u4e00\u65f6\u95f4\u7684\u5f00\u53d1\u793e\u533a\u4e3a nginx \u7684\u6210\u7ee9\u611f\u5230\u9707\u64bc\uff0c\u51fa\u73b0\u4e86\u5f88\u591a\u5229\u7528\u4e8b\u4ef6\u5faa\u73af\u7684\u5e94\u7528\u6846\u67b6\uff0c\u5982 tornado \/ nodejs\uff0c\u4e5f\u786e\u5b9e\u80fd\u591f\u8dd1\u51fa\u66f4\u9ad8\u7684\u5206\u6570\u3002\u800c\u4e14 python\/ruby \u793e\u533a\u53d7 GIL \u4e4b\u7d2f\uff0c\u51e0\u4e4e\u6ca1\u6709\u5e76\u53d1\u652f\u6301\uff0c\u8fd9\u65f6\u4e8b\u4ef6\u5faa\u73af\u662f\u4e00\u79cd\u5e76\u53d1\u7684\u89e3\u653e\u3002<\/p>\n<p>\u7136\u800c\u4e8b\u4ef6\u5faa\u73af\u7684\u5f02\u6b65\u63a7\u5236\u6d41\u5bf9\u5f00\u53d1\u8005\u5e76\u4e0d\u53cb\u597d\u3002\u4e1a\u52a1\u4ee3\u7801\u4e2d\u968f\u5904\u53ef\u89c1\u7684 mysql \/ memcache \u8c03\u7528\uff0c\u8fc5\u901f\u5730\u81a8\u80c0\u6210\u4e00\u5768 callback hell\u3002\u8fd9\u65f6\u793e\u533a\u53d1\u73b0\u4e86\u534f\u7a0b\uff0c\u5728\u7528\u6237\u6001\u5b9e\u73b0\u4e0a\u4e0b\u6587\u5207\u6362\u7684\u5de5\u5177\uff0c\u628a epoll() \u4e8b\u4ef6\u5faa\u73af\u9690\u85cf\u8d77\u6765\uff0c\u800c\u4e14\u6210\u672c\u4e0d\u9ad8\uff1a\u7528\u6bcf\u4e2a\u534f\u7a0b\u4e00\u4e2a\u7528\u6237\u6001\u7684\u6808\uff0c\u4ee3\u66ff\u624b\u5de5\u7684\u72b6\u6001\u7ba1\u7406\u3002\u4f3c\u4e4e\u540c\u65f6\u5f97\u5230\u4e86\u4e8b\u4ef6\u5faa\u73af\u548c\u7ebf\u7a0b\u540c\u6b65\u63a7\u5236\u6d41\u7684\u597d\u5904\uff0c\u65e2\u5f97\u5230\u4e86 epoll() \u7684\u9ad8\u6027\u80fd\uff0c\u53c8\u6613\u4e8e\u5f00\u53d1\u3002\u751a\u81f3\u901a\u8fc7 monkey patch\uff0c\u65e7\u7684\u540c\u6b65\u4ee3\u7801\u53ef\u4ee5\u51e0\u4e4e\u65e0\u7f1d\u5730\u5f97\u5230\u5f02\u6b65\u7684\u9ad8\u6027\u80fd\uff0c\u771f\u662f\u592a\u5b8c\u7f8e\u4e86\u3002<\/p>\n<p>\u7136\u800c\uff0c\u8dd1\u4e86\u4e00\u5708\u56de\u6765\uff0c\u534f\u7a0b\u76f8\u6bd4\u539f\u751f\u7ebf\u7a0b\u53c8\u6709\u591a\u5c11\u5dee\u522b\u5462\u3002<\/p>\n<p>1. \u7528\u6237\u6001\u6808\uff0c\u66f4\u8f7b\u91cf\u5730\u521b\u5efa\u201c\u8f7b\u91cf\u7ebf\u7a0b\u201d\uff1b<br \/>\n2. \u534f\u4f5c\u5f0f\u7684\u7528\u6237\u6001\u8c03\u5ea6\u5668\uff0c\u66f4\u5c11\u7ebf\u7a0b\u4e0a\u4e0b\u6587\u5207\u6362\uff1b<br \/>\n3. \u91cd\u65b0\u5b9e\u73b0 mutex \u7b49\u540c\u6b65\u539f\u8bed\uff1b<\/p>\n<p>\u534f\u7a0b\u7684\u521b\u5efa\u6210\u672c\u66f4\u5c0f\uff0c\u4f46\u662f\u521b\u5efa\u6210\u672c\u53ef\u4ee5\u88ab\u7ebf\u7a0b\u6c60\u5b8c\u5168\u7ed5\u5f00\uff0c\u800c\u4e14\u7ebf\u7a0b\u6c60\u66f4 fine grained\uff0c\u8fd9\u65f6\u76f8\u6bd4\u7ebf\u7a0b\u6c60\u7684\u4f18\u52bf\u66f4\u591a\u5728\u4e8e\u5f00\u53d1\u6a21\u578b\u7684\u7701\u529b\uff0c\u800c\u4e0d\u5728\u6027\u80fd\u3002\u6b64\u5916\uff0c&#8221;\u8f7b\u91cf\u7ebf\u7a0b&#8221; \u8fd9\u4e2a\u540d\u5b57\u6709\u4e00\u5b9a\u8bef\u5bfc\u7684\u6210\u5206\uff0c\u534f\u7a0b\u4f5c\u4e3a\u7528\u6237\u6001\u7ebf\u7a0b\uff0c\u9700\u8981\u7684\u4e0a\u4e0b\u6587\u4fe1\u606f\u4e0e\u7cfb\u7edf\u7ebf\u7a0b\u51e0\u4e4e\u65e0\u5f02\u3002\u5982\u679c\u8bf4\u963b\u788d\u7cfb\u7edf\u7ebf\u7a0b scale \u7684\u8981\u7d20\u662f\u5185\u5b58\uff08\u4e00\u4e2a\u7cfb\u7edf\u7ebf\u7a0b\u7684\u6808\u51e0\u4e4e\u6709 10mb \u865a\u62df\u5185\u5b58\uff0c\u7ebf\u7a0b\u7684\u6570\u91cf\u53d7\u865a\u62df\u5730\u5740\u7a7a\u95f4\u9650\u5236\uff09\uff0c\u90a3\u4e48\u7528\u6237\u6001\u7ebf\u7a0b\u7684\u6808\u5982\u679c\u4f7f\u7528\u5f97\u4e0d\u8282\u5236\uff0c\u4e5f\u9700\u8981\u540c\u91cf\u7684\u5185\u5b58\u3002<\/p>\n<p>\u534f\u4f5c\u5f0f\u8c03\u5ea6\u76f8\u6bd4\u62a2\u5360\u5f0f\u8c03\u5ea6\u7684\u4f18\u52bf\u5728\u4e8e\u4e0a\u4e0b\u6587\u5207\u6362\u5f00\u9500\u66f4\u5c11\uff08\u4f46\u662f\u5dee\u5f02\u662f\u5426\u663e\u8457\uff1f\uff09\u3001\u66f4\u5bb9\u6613\u628a\u7f13\u5b58\u8dd1\u70ed\uff0c\u4f46\u662f\u4e5f\u653e\u5f03\u4e86\u539f\u751f\u7ebf\u7a0b\u7684\u4f18\u5148\u7ea7\u6982\u5ff5\uff0c\u5982\u679c\u5b58\u5728\u4e00\u4e2a\u8f83\u957f\u65f6\u95f4\u7684\u8ba1\u7b97\u4efb\u52a1\uff0c\u5c06\u5f71\u54cd\u5230 IO \u4efb\u52a1\u7684\u54cd\u5e94\u5ef6\u65f6\u3002\u800c\u5185\u6838\u8c03\u5ea6\u5668\u603b\u662f\u4f18\u5148 IO \u4efb\u52a1\uff0c\u4f7f\u4e4b\u5c3d\u5feb\u5f97\u5230\u54cd\u5e94\u3002\u6b64\u5916\uff0c\u5355\u7ebf\u7a0b\u7684\u534f\u7a0b\u65b9\u6848\u5e76\u4e0d\u80fd\u4ece\u6839\u672c\u4e0a\u907f\u514d\u963b\u585e\uff0c\u6bd4\u5982\u6587\u4ef6\u64cd\u4f5c\u3001\u5185\u5b58\u7f3a\u9875\uff0c\u8fd9\u90fd\u5c5e\u4e8e\u5f71\u54cd\u5230\u5ef6\u65f6\u7684\u56e0\u7d20\u3002<\/p>\n<p>\u4e8b\u4ef6\u5faa\u73af\u65b9\u6848\u88ab\u8ba4\u8bc6\u7684\u4e00\u4e2a\u4f18\u52bf\u662f\u53ef\u4ee5\u907f\u514d\u4e0a\u9501\uff0c\u800c\u9501\u662f\u4e07\u6076\u4e4b\u6e90\u3002\u534f\u7a0b\u65b9\u6848\u57fa\u4e8e\u4e8b\u4ef6\u5faa\u73af\u65b9\u6848\uff0c\u4f3c\u4e4e\u7ee7\u627f\u4e86\u4e0d\u7528\u4e0a\u9501\u7684\u4f18\u52bf\u3002\u7136\u800c\u5e76\u4e0d\u662f\u3002\u4e0a\u4e0b\u6587\u5207\u6362\u7684\u8fb9\u754c\u4e4b\u5916\uff0c\u5e76\u4e0d\u80fd\u4fdd\u8bc1\u4e34\u754c\u533a\u3002\u8be5\u4e0a\u9501\u7684\u5730\u65b9\u4ecd\u9700\u8981\u4e0a\u9501\u3002<\/p>\n<p>\u5dee\u5f02\u5b58\u5728\uff0c\u4f46\u8be5\u7ef4\u62a4\u7684\u4fe1\u606f\u5e76\u6ca1\u6709\u66f4\u5c11\u3002\u5982\u679c\u8fd0\u884c\u65f6\u5bf9\u7cfb\u7edf\u7ebf\u7a0b\u7684\u652f\u6301\u6bd4\u8f83\u597d\uff0c\u4e1a\u52a1\u7cfb\u7edf\u4f7f\u7528\u534f\u7a0b\u7684\u7efc\u5408\u6548\u76ca\u5e76\u4e0d\u4e00\u5b9a\u76f8\u6bd4\u7ebf\u7a0b\u6c60\u66f4\u597d\u3002\u6211\u4eec\u4e1a\u5185\u901a\u5e38\u610f\u4e49\u4e0a\u7684&#8221;\u9ad8\u5e76\u53d1&#8221;\uff0c\u5f80\u5f80\u53ea\u662f\u8981\u8fbe\u5230\u51e0k 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Hell\uff0c\u4f7f\u7528\u540c\u6b65\u6a21\u578b\u964d\u4f4e\u5f00\u53d1\u6210\u672c\u7684\u540c\u65f6\u4fdd\u7559\u66f4\u7075\u6d3b\u63a7\u5236\u6d41\u7684\u597d\u5904\uff0c\u6bd4\u5982\u540c\u65f6\u53d1\u4e09\u4e2a\u8bf7\u6c42\uff1b\u8fd9\u65f6\u8282\u7ea6\u5730\u4f7f\u7528\u6808\uff0c\u53ef\u4ee5\u5145\u5206\u5730\u53d1\u6325 &#8220;\u8f7b\u91cf&#8221; \u7684\u4f18\u52bf\uff1b<br \/>\n\u4f46\u5e76\u4e0d\u662f\u4e07\u7075\u4e39\uff1a<br \/>\n\u5982\u679c\u6808\u4f7f\u7528\u5f97\u4e0d\u8282\u5236\uff0c\u6d88\u8017\u7684\u5185\u5b58\u91cf\u548c\u7cfb\u7edf\u7ebf\u7a0b\u65e0\u5f02\uff0c\u751a\u81f3\u5185\u5b58\u7ba1\u7406\u8fd8\u4e0d\u5982\u7cfb\u7edf\u7ebf\u7a0b\uff08\u7cfb\u7edf\u7ebf\u7a0b\u53ef\u4ee5\u52a8\u6001\u5730\u8c03\u6574\u865a\u62df\u5185\u5b58\uff0c\u7528\u6237\u7ebf\u7a0b\u7684 Segmented Stack \u65b9\u6848\u5b58\u5728\u4e25\u91cd\u7684\u6296\u52a8\u95ee\u9898\uff0cContinous Stack \u65b9\u6848\u7ba1\u7406\u4e0d\u5f53\u4e5f\u4f1a\u6296\u52a8\uff0c\u4e3a\u4e86\u907f\u514d\u6296\u52a8\u5219\u6210\u4e86\u7a7a\u95f4\u6362\u65f6\u95f4\uff0c\u800c\u5185\u6838\u5728\u8fd9\u65b9\u9762\u505a\u4e86\u591a\u5c11 heuristic \u5462\uff09\uff1b<br \/>\nIO Bound \u4efb\u52a1\u53ef\u4ee5\u901a\u8fc7\u8c03\u7ebf\u7a0b\u6c60\u5927\u5c0f\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u7f13\u89e3\uff0c\u76ee\u6807\u662f\u628a CPU \u8dd1\u6ee1\u5373\u53ef\uff0c\u8fd9\u70b9\u7ebf\u7a0b\u6c60\u7684\u8868\u73b0\u53ef\u80fd\u4e0d\u5b8c\u7f8e\uff0c\u4f46\u5728\u4e1a\u52a1\u903b\u8f91\u8fd9\u4e2a\u9886\u57df\u662f\u53ca\u683c\u7684\uff1b<br \/>\n\u6b64\u5916\uff0c\u4e00\u822c\u7684 python\/ruby \u4efb\u52a1\u5e76\u4e0d\u662f\u4e25\u683c\u7684 IO Bound\uff0c\u6bd4\u5982 ORM \u7684\u5bf9\u8c61\u521b\u5efa\u3001\u6a21\u7248\u6e32\u67d3\u3001GC \u751a\u81f3\u89e3\u91ca\u5668\u672c\u8eab\uff0c\u90fd\u662f CPU \u5927\u6237\uff1b\u5355\u4e2a\u8bf7\u6c42\u6263\u53bb redis 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\/>\nhttp:\/\/blog.mixu.net\/2011\/02\/01\/understanding-the-node-js-event-loop\/<br \/>\nhttp:\/\/www.infoq.com\/cn\/articles\/generator-and-asynchronous-programming\/<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u540c\u6b65\u5f02\u6b65\uff0c\u963b\u585e\u975e\u963b\u585e\u8fd9\u4e00\u76f4\u662f\u4e00\u4e2a\u5f88\u96be\u7406\u89e3\u7684\u6982\u5ff5\u3002\u4ee5\u524d\u4e5f\u770b\u8fc7\u4e00\u4e9b\u8d44\u6599\uff0c\u4f46\u73b0\u5728\u56de\u60f3\u8d77\u6765\u8fd8\u662f\u4e00\u7247\u7a7a\u767d\u3002\u6240\u4ee5\u6574\u7406\u4e00\u7bc7\u6587 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-127","post","type-post","status-publish","format-standard","hentry","category-architecture"],"_links":{"self":[{"href":"https:\/\/ayonel.malash.net\/index.php\/wp-json\/wp\/v2\/posts\/127","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ayonel.malash.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ayonel.malash.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ayonel.malash.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ayonel.malash.net\/index.php\/wp-json\/wp\/v2\/comments?post=127"}],"version-history":[{"count":7,"href":"https:\/\/ayonel.malash.net\/index.php\/wp-json\/wp\/v2\/posts\/127\/revisions"}],"predecessor-version":[{"id":171,"href":"https:\/\/ayonel.malash.net\/index.php\/wp-json\/wp\/v2\/posts\/127\/revisions\/171"}],"wp:attachment":[{"href":"https:\/\/ayonel.malash.net\/index.php\/wp-json\/wp\/v2\/media?parent=127"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ayonel.malash.net\/index.php\/wp-json\/wp\/v2\/categories?post=127"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ayonel.malash.net\/index.php\/wp-json\/wp\/v2\/tags?post=127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}