{"id":152323,"date":"2024-11-01T22:00:24","date_gmt":"2024-11-01T14:00:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/152323\/"},"modified":"2024-11-01T22:00:25","modified_gmt":"2024-11-01T14:00:25","slug":"%e6%8e%a1%e7%94%a8redis%e5%af%a6%e7%8f%beio%e5%a4%9a%e8%b7%af%e8%a4%87%e7%94%a8%ef%bc%88redis%e7%9a%84io%e5%a4%9a%e8%b7%af%e8%a4%87%e7%94%a8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/152323\/","title":{"rendered":"\u63a1\u7528Redis\u5be6\u73feIO\u591a\u8def\u8907\u7528\uff08redis\u7684io\u591a\u8def\u8907\u7528\uff09"},"content":{"rendered":"<h1 id=\"%e6%8e%a1%e7%94%a8redis%e5%af%a6%e7%8f%beio%e5%a4%9a%e8%b7%af%e8%a4%87%e7%94%a8%ef%bc%88redis%e7%9a%84io%e5%a4%9a%e8%b7%af%e8%a4%87%e7%94%a8%ef%bc%89-GUBkupUKsq\">\u63a1\u7528Redis\u5be6\u73feIO\u591a\u8def\u8907\u7528\uff08redis\u7684io\u591a\u8def\u8907\u7528\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u6027\u80fd\u548c\u6548\u7387\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u96a8\u8457\u7528\u6236\u9700\u6c42\u7684\u589e\u52a0\uff0c\u5982\u4f55\u6709\u6548\u5730\u8655\u7406\u5927\u91cf\u7684IO\u8acb\u6c42\u6210\u70ba\u4e86\u958b\u767c\u8005\u9762\u81e8\u7684\u4e00\u5927\u6311\u6230\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u4e0d\u50c5\u63d0\u4f9b\u4e86\u5feb\u901f\u7684\u6578\u64da\u5b58\u53d6\u80fd\u529b\uff0c\u9084\u80fd\u901a\u904eIO\u591a\u8def\u8907\u7528\u6280\u8853\u4f86\u9032\u4e00\u6b65\u63d0\u5347\u6027\u80fd\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u7684IO\u591a\u8def\u8907\u7528\u6a5f\u5236\u53ca\u5176\u5be6\u73fe\u65b9\u5f0f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afio%e5%a4%9a%e8%b7%af%e8%a4%87%e7%94%a8%ef%bc%9f-GUBkupUKsq\">\u4ec0\u9ebc\u662fIO\u591a\u8def\u8907\u7528\uff1f<\/h2>\n<p>IO\u591a\u8def\u8907\u7528\u662f\u4e00\u7a2e\u6280\u8853\uff0c\u5141\u8a31\u55ae\u500b\u9032\u7a0b\u540c\u6642\u76e3\u63a7\u591a\u500bIO\u6d41\uff0c\u5f9e\u800c\u63d0\u9ad8\u8cc7\u6e90\u7684\u4f7f\u7528\u6548\u7387\u3002\u9019\u7a2e\u6280\u8853\u7279\u5225\u9069\u5408\u65bc\u9700\u8981\u8655\u7406\u5927\u91cf\u4e26\u767c\u9023\u63a5\u7684\u61c9\u7528\uff0c\u5982\u7db2\u7d61\u670d\u52d9\u5668\u548c\u6578\u64da\u5eab\u3002\u901a\u904e\u4f7f\u7528IO\u591a\u8def\u8907\u7528\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u907f\u514d\u70ba\u6bcf\u500b\u9023\u63a5\u5275\u5efa\u4e00\u500b\u65b0\u7684\u7dda\u7a0b\u6216\u9032\u7a0b\uff0c\u5f9e\u800c\u6e1b\u5c11\u7cfb\u7d71\u8cc7\u6e90\u7684\u6d88\u8017\u3002<\/p>\n<h2 id=\"redis%e4%b8%ad%e7%9a%84io%e5%a4%9a%e8%b7%af%e8%a4%87%e7%94%a8-GUBkupUKsq\">Redis\u4e2d\u7684IO\u591a\u8def\u8907\u7528<\/h2>\n<p>Redis\u4f7f\u7528IO\u591a\u8def\u8907\u7528\u4f86\u8655\u7406\u5ba2\u6236\u7aef\u7684\u8acb\u6c42\u3002\u5b83\u7684\u4e8b\u4ef6\u5faa\u74b0\u6a5f\u5236\u5141\u8a31Redis\u5728\u55ae\u500b\u7dda\u7a0b\u4e2d\u8655\u7406\u591a\u500b\u5ba2\u6236\u7aef\u7684\u8acb\u6c42\uff0c\u9019\u6a23\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6027\u80fd\u3002Redis\u652f\u6301\u591a\u7a2eIO\u591a\u8def\u8907\u7528\u7684\u5be6\u73fe\u65b9\u5f0f\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>select<\/strong>\uff1a\u6700\u65e9\u7684IO\u591a\u8def\u8907\u7528\u65b9\u6cd5\uff0c\u652f\u6301\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u6578\u91cf\u6709\u9650\u3002<\/li>\n<li><strong>poll<\/strong>\uff1a\u514b\u670d\u4e86select\u7684\u9650\u5236\uff0c\u652f\u6301\u66f4\u591a\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u4f46\u6027\u80fd\u5728\u9ad8\u4e26\u767c\u60c5\u6cc1\u4e0b\u53ef\u80fd\u4e0b\u964d\u3002<\/li>\n<li><strong>epoll<\/strong>\uff1aLinux\u7279\u6709\u7684\u9ad8\u6548IO\u591a\u8def\u8907\u7528\u65b9\u6cd5\uff0c\u9069\u5408\u8655\u7406\u5927\u91cf\u4e26\u767c\u9023\u63a5\u3002<\/li>\n<li><strong>kqueue<\/strong>\uff1aBSD\u7cfb\u7d71\u4e0a\u7684\u9ad8\u6548IO\u591a\u8def\u8907\u7528\u65b9\u6cd5\uff0c\u6027\u80fd\u512a\u8d8a\u3002<\/li>\n<\/ul>\n<h2 id=\"redis%e7%9a%84%e4%ba%8b%e4%bb%b6%e5%be%aa%e7%92%b0-GUBkupUKsq\">Redis\u7684\u4e8b\u4ef6\u5faa\u74b0<\/h2>\n<p>Redis\u7684\u4e8b\u4ef6\u5faa\u74b0\u662f\u5176IO\u591a\u8def\u8907\u7528\u7684\u6838\u5fc3\u3002\u4e8b\u4ef6\u5faa\u74b0\u4e0d\u65b7\u6aa2\u67e5\u662f\u5426\u6709\u65b0\u7684\u5ba2\u6236\u7aef\u8acb\u6c42\uff0c\u4e26\u6839\u64da\u8acb\u6c42\u7684\u985e\u578b\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002\u4ee5\u4e0b\u662fRedis\u4e8b\u4ef6\u5faa\u74b0\u7684\u57fa\u672c\u6d41\u7a0b\uff1a<\/p>\n<pre><code>\nwhile (1) {\n    \/\/ \u7b49\u5f85\u4e8b\u4ef6\u767c\u751f\n    waitForEvents();\n    \n    \/\/ \u8655\u7406\u6240\u6709\u5c31\u7dd2\u7684\u4e8b\u4ef6\n    for each event in readyEvents {\n        handleEvent(event);\n    }\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u5faa\u74b0\u4e2d\uff0cRedis\u6703\u6301\u7e8c\u76e3\u63a7\u6240\u6709\u7684\u5ba2\u6236\u7aef\u9023\u63a5\uff0c\u4e26\u5728\u6709\u8acb\u6c42\u5230\u9054\u6642\u7acb\u5373\u8655\u7406\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u9ad8\u6548\u7684\u8acb\u6c42\u97ff\u61c9\u6642\u9593\u3002<\/p>\n<h2 id=\"%e5%af%a6%e7%8f%beio%e5%a4%9a%e8%b7%af%e8%a4%87%e7%94%a8%e7%9a%84%e5%84%aa%e5%8b%a2-GUBkupUKsq\">\u5be6\u73feIO\u591a\u8def\u8907\u7528\u7684\u512a\u52e2<\/h2>\n<p>\u63a1\u7528Redis\u7684IO\u591a\u8def\u8907\u7528\u6280\u8853\u6709\u4ee5\u4e0b\u5e7e\u500b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6548\u6027<\/strong>\uff1a\u901a\u904e\u55ae\u7dda\u7a0b\u8655\u7406\u591a\u500b\u8acb\u6c42\uff0c\u6e1b\u5c11\u4e86\u4e0a\u4e0b\u6587\u5207\u63db\u7684\u958b\u92b7\u3002<\/li>\n<li><strong>\u53ef\u64f4\u5c55\u6027<\/strong>\uff1a\u80fd\u5920\u8f15\u9b06\u8655\u7406\u5927\u91cf\u4e26\u767c\u9023\u63a5\uff0c\u9069\u5408\u9ad8\u6d41\u91cf\u7684\u61c9\u7528\u5834\u666f\u3002<\/li>\n<li><strong>\u7c21\u5316\u8a2d\u8a08<\/strong>\uff1a\u958b\u767c\u8005\u4e0d\u9700\u8981\u7ba1\u7406\u591a\u500b\u7dda\u7a0b\u6216\u9032\u7a0b\uff0c\u7c21\u5316\u4e86\u4ee3\u78bc\u7684\u8907\u96dc\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-GUBkupUKsq\">\u7d50\u8ad6<\/h2>\n<p>Redis\u7684IO\u591a\u8def\u8907\u7528\u6280\u8853\u70ba\u9ad8\u6548\u8655\u7406\u4e26\u767c\u8acb\u6c42\u63d0\u4f9b\u4e86\u4e00\u500b\u5f37\u5927\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u901a\u904e\u4f7f\u7528\u4e8b\u4ef6\u5faa\u74b0\u548c\u591a\u7a2eIO\u591a\u8def\u8907\u7528\u65b9\u6cd5\uff0cRedis\u80fd\u5920\u5728\u9ad8\u8ca0\u8f09\u7684\u60c5\u6cc1\u4e0b\u4fdd\u6301\u512a\u7570\u7684\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5b58\u53d6\u7684\u61c9\u7528\u4f86\u8aaa\uff0cRedis\u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72Redis\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u696d\u52d9\u63d0\u4f9b\u7a69\u5b9a\u548c\u5feb\u901f\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5229\u7528Redis\u5be6\u73feIO\u591a\u8def\u8907\u7528\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u6548\u7387\uff0c\u4e26\u7c21\u5316\u9ad8\u4f75\u767c\u74b0\u5883\u4e0b\u7684\u6578\u64da\u8655\u7406\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-152323","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152323","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=152323"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152323\/revisions"}],"predecessor-version":[{"id":152324,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152323\/revisions\/152324"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=152323"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=152323"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=152323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}