{"id":99176,"date":"2024-10-21T08:46:17","date_gmt":"2024-10-21T00:46:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/99176\/"},"modified":"2024-10-21T08:46:18","modified_gmt":"2024-10-21T00:46:18","slug":"redis-%e9%9d%9e%e9%98%bb%e5%a1%9e-io-%e8%b6%85%e9%ab%98%e6%80%a7%e8%83%bd%e8%ae%93%e4%bd%a0%e5%bf%ab%e4%ba%ba%e4%b8%80%e6%ad%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/99176\/","title":{"rendered":"Redis \u975e\u963b\u585e IO \u8d85\u9ad8\u6027\u80fd\u8b93\u4f60\u5feb\u4eba\u4e00\u6b65"},"content":{"rendered":"

Redis \u975e\u963b\u585e IO \u8d85\u9ad8\u6027\u80fd\u8b93\u4f60\u5feb\u4eba\u4e00\u6b65<\/h1>\n

\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6027\u80fd\u662f\u6bcf\u500b\u61c9\u7528\u7a0b\u5e8f\u6210\u529f\u7684\u95dc\u9375\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u4ee5\u5176\u5353\u8d8a\u7684\u6027\u80fd\u548c\u9748\u6d3b\u6027\u800c\u805e\u540d\u3002\u7279\u5225\u662f\u5176\u975e\u963b\u585e IO \u7684\u7279\u6027\uff0c\u4f7f\u5f97 Redis \u80fd\u5920\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\u8868\u73fe\u51fa\u8272\uff0c\u8b93\u958b\u767c\u8005\u80fd\u5920\u5728\u6027\u80fd\u4e0a\u5feb\u4eba\u4e00\u6b65\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u975e\u963b\u585e IO\uff1f<\/h2>\n

\u975e\u963b\u585e IO\uff08Non-blocking I\/O\uff09\u662f\u4e00\u7a2e\u5141\u8a31\u7a0b\u5e8f\u5728\u7b49\u5f85 IO \u64cd\u4f5c\u5b8c\u6210\u6642\u4e0d\u6703\u88ab\u963b\u585e\u7684\u6280\u8853\u3002\u9019\u610f\u5473\u8457\uff0c\u7576\u4e00\u500b\u7a0b\u5e8f\u767c\u51fa IO \u8acb\u6c42\u6642\uff0c\u5b83\u53ef\u4ee5\u7e7c\u7e8c\u57f7\u884c\u5176\u4ed6\u4efb\u52d9\uff0c\u800c\u4e0d\u5fc5\u7b49\u5f85 IO \u64cd\u4f5c\u5b8c\u6210\u3002\u9019\u7a2e\u7279\u6027\u5728\u9ad8\u4e26\u767c\u7684\u61c9\u7528\u4e2d\u5c24\u70ba\u91cd\u8981\uff0c\u56e0\u70ba\u5b83\u80fd\u5920\u6709\u6548\u5229\u7528\u7cfb\u7d71\u8cc7\u6e90\uff0c\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n

Redis \u7684\u975e\u963b\u585e IO \u5be6\u73fe<\/h2>\n

Redis \u4f7f\u7528\u4e86\u4e8b\u4ef6\u9a45\u52d5\u7684\u67b6\u69cb\uff0c\u9019\u4f7f\u5f97\u5b83\u80fd\u5920\u5728\u55ae\u500b\u7dda\u7a0b\u4e2d\u8655\u7406\u591a\u500b\u5ba2\u6236\u7aef\u7684\u8acb\u6c42\u3002\u9019\u7a2e\u8a2d\u8a08\u7684\u6838\u5fc3\u662f\u4f7f\u7528\u4e86 epoll\uff08\u5728 Linux \u7cfb\u7d71\u4e2d\uff09\u6216 kqueue\uff08\u5728 BSD \u7cfb\u7d71\u4e2d\uff09\u7b49\u9ad8\u6548\u7684 IO \u591a\u8def\u5fa9\u7528\u6280\u8853\u3002\u9019\u4e9b\u6280\u8853\u5141\u8a31 Redis \u5728\u55ae\u500b\u7dda\u7a0b\u4e2d\u76e3\u63a7\u591a\u500b\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u4e26\u5728\u6709\u4e8b\u4ef6\u767c\u751f\u6642\u9032\u884c\u8655\u7406\u3002<\/p>\n

\u4e8b\u4ef6\u5faa\u74b0<\/h3>\n

Redis \u7684\u4e8b\u4ef6\u5faa\u74b0\u662f\u5176\u975e\u963b\u585e IO \u7684\u6838\u5fc3\u3002\u7576 Redis \u555f\u52d5\u6642\uff0c\u5b83\u6703\u9032\u5165\u4e00\u500b\u7121\u9650\u5faa\u74b0\uff0c\u6301\u7e8c\u6aa2\u67e5\u662f\u5426\u6709\u5ba2\u6236\u7aef\u8acb\u6c42\u5230\u4f86\u3002\u7576\u8acb\u6c42\u5230\u9054\u6642\uff0cRedis \u6703\u7acb\u5373\u8655\u7406\uff0c\u800c\u4e0d\u6703\u56e0\u70ba\u7b49\u5f85 IO \u64cd\u4f5c\u800c\u963b\u585e\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u4f7f\u5f97 Redis \u80fd\u5920\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u4f9d\u7136\u4fdd\u6301\u4f4e\u5ef6\u9072\u548c\u9ad8\u541e\u5410\u91cf\u3002<\/p>\n

\u6027\u80fd\u512a\u52e2<\/h3>\n

\u7531\u65bc Redis \u7684\u975e\u963b\u585e IO \u7279\u6027\uff0c\u5b83\u80fd\u5920\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\u63d0\u4f9b\u5353\u8d8a\u7684\u6027\u80fd\u3002\u6839\u64da\u5b98\u65b9\u6587\u6a94\uff0cRedis \u6bcf\u79d2\u53ef\u4ee5\u8655\u7406\u6578\u5341\u842c\u7684\u8acb\u6c42\uff0c\u9019\u4f7f\u5f97\u5b83\u6210\u70ba\u8a31\u591a\u5be6\u6642\u61c9\u7528\u7684\u9996\u9078\u3002\u4f8b\u5982\uff0c\u5728\u793e\u4ea4\u5a92\u9ad4\u5e73\u53f0\u4e0a\uff0cRedis \u53ef\u4ee5\u7528\u4f86\u5feb\u901f\u5b58\u53d6\u7528\u6236\u8cc7\u6599\u548c\u6d88\u606f\uff0c\u5f9e\u800c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n

\u5be6\u969b\u61c9\u7528\u6848\u4f8b<\/h2>\n

\u8a31\u591a\u77e5\u540d\u4f01\u696d\u90fd\u5728\u5176\u67b6\u69cb\u4e2d\u4f7f\u7528 Redis \u4f86\u63d0\u5347\u6027\u80fd\u3002\u4f8b\u5982\uff0cTwitter \u4f7f\u7528 Redis \u4f86\u8655\u7406\u5176\u63a8\u6587\u7684\u8a08\u6578\u548c\u5b58\u5132\uff0c\u9019\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u5feb\u901f\u7372\u53d6\u6700\u65b0\u7684\u63a8\u6587\u4fe1\u606f\u3002\u6b64\u5916\uff0cGitHub \u4e5f\u5229\u7528 Redis \u4f86\u52a0\u901f\u5176\u641c\u7d22\u529f\u80fd\uff0c\u5f9e\u800c\u63d0\u5347\u7528\u6236\u7684\u64cd\u4f5c\u6548\u7387\u3002<\/p>\n

\u4ee3\u78bc\u793a\u4f8b<\/h3>\n

\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Redis \u4f7f\u7528\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 Redis \u7684\u975e\u963b\u585e\u7279\u6027\u4f86\u5b58\u53d6\u6578\u64da\uff1a<\/p>\n

const redis = require('redis');\nconst client = redis.createClient();\n\nclient.on('error', (err) => {\n    console.log('Error ' + err);\n});\n\n\/\/ \u975e\u963b\u585e\u5730\u8a2d\u7f6e\u9375\u503c\u5c0d\nclient.set('key', 'value', redis.print);\n\n\/\/ \u975e\u963b\u585e\u5730\u7372\u53d6\u9375\u503c\u5c0d\nclient.get('key', (err, reply) => {\n    if (err) throw err;\n    console.log(reply); \/\/ \u8f38\u51fa 'value'\n});\n<\/code><\/pre>\n
\u7d50\u8ad6<\/h2>\n
Redis \u7684\u975e\u963b\u585e IO \u7279\u6027\u4f7f\u5176\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\u8868\u73fe\u51fa\u8272\uff0c\u80fd\u5920\u6709\u6548\u63d0\u5347\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u3002\u7121\u8ad6\u662f\u793e\u4ea4\u5a92\u9ad4\u3001\u96fb\u5b50\u5546\u52d9\u9084\u662f\u5373\u6642\u901a\u8a0a\uff0cRedis \u90fd\u80fd\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u5f37\u5927\u7684\u652f\u6301\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\u548c\u7528\u6236\u9700\u6c42\u7684\u63d0\u5347\uff0c\u9078\u64c7\u4e00\u500b\u9ad8\u6548\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u8b8a\u5f97\u6108\u52a0\u91cd\u8981\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6027\u80fd\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u7684\u670d\u52d9\u5c07\u662f\u60a8\u7684\u7406\u60f3\u9078\u64c7\u3002\u7121\u8ad6\u662f \u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f \u96f2\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u6eff\u8db3\u60a8\u7684\u9700\u6c42\uff0c\u52a9\u60a8\u5728\u6578\u64da\u8655\u7406\u4e0a\u5feb\u4eba\u4e00\u6b65\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Redis \u975e\u963b\u585e IO \u63d0\u4f9b\u8d85\u9ad8\u6027\u80fd\uff0c\u52a9\u4f60\u5728\u6578\u64da\u8655\u7406\u4e0a\u5feb\u4eba\u4e00\u6b65\uff0c\u63d0\u5347\u61c9\u7528\u6548\u7387\u8207\u97ff\u61c9\u901f\u5ea6\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-99176","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/99176","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=99176"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/99176\/revisions"}],"predecessor-version":[{"id":99177,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/99176\/revisions\/99177"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=99176"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=99176"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=99176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}