{"id":50729,"date":"2024-10-08T13:19:16","date_gmt":"2024-10-08T05:19:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/50729\/"},"modified":"2024-10-08T13:19:16","modified_gmt":"2024-10-08T05:19:16","slug":"nginx-%e6%8c%87%e4%bb%a4%ef%bc%9adirectio-%ef%bc%88%e7%9b%b4%e6%8e%a5-i-o%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/50729\/","title":{"rendered":"Nginx \u6307\u4ee4\uff1adirectio \uff08\u76f4\u63a5 I\/O\uff09"},"content":{"rendered":"<h1 id=\"nginx-%e6%8c%87%e4%bb%a4%ef%bc%9adirectio%ef%bc%88%e7%9b%b4%e6%8e%a5-i-o%ef%bc%89-TQWnVPqBHm\">Nginx \u6307\u4ee4\uff1adirectio\uff08\u76f4\u63a5 I\/O\uff09<\/h1>\n<p>Nginx \u662f\u4e00\u6b3e\u9ad8\u6548\u80fd\u7684\u7db2\u9801\u4f3a\u670d\u5668\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u7db2\u7ad9\u548c\u61c9\u7528\u7a0b\u5f0f\u4e2d\u3002\u5176\u9748\u6d3b\u7684\u914d\u7f6e\u9078\u9805\u548c\u9ad8\u6548\u7684\u6027\u80fd\u4f7f\u5176\u6210\u70ba\u8a31\u591a\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u7684\u9996\u9078\u3002\u5728 Nginx \u7684\u914d\u7f6e\u4e2d\uff0c\u6709\u4e00\u500b\u91cd\u8981\u7684\u6307\u4ee4\u662f <code>directio<\/code>\uff0c\u5b83\u8207\u76f4\u63a5 I\/O \u64cd\u4f5c\u6709\u95dc\uff0c\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u7684\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%9b%b4%e6%8e%a5-i-o%ef%bc%9f-TQWnVPqBHm\">\u4ec0\u9ebc\u662f\u76f4\u63a5 I\/O\uff1f<\/h2>\n<p>\u76f4\u63a5 I\/O\uff08Direct I\/O\uff09\u662f\u4e00\u7a2e\u6578\u64da\u5b58\u53d6\u65b9\u5f0f\uff0c\u5141\u8a31\u61c9\u7528\u7a0b\u5f0f\u76f4\u63a5\u8207\u786c\u789f\u9032\u884c\u4ea4\u4e92\uff0c\u800c\u4e0d\u7d93\u904e\u64cd\u4f5c\u7cfb\u7d71\u7684\u7de9\u885d\u5340\u3002\u9019\u7a2e\u65b9\u5f0f\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u5728\u5167\u5b58\u4e2d\u7684\u8907\u88fd\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u6587\u4ef6\u6216\u9ad8\u6d41\u91cf\u8acb\u6c42\u6642\u3002<\/p>\n<h2 id=\"nginx-%e4%b8%ad%e7%9a%84-directio-%e6%8c%87%e4%bb%a4-TQWnVPqBHm\">Nginx \u4e2d\u7684 directio \u6307\u4ee4<\/h2>\n<p>Nginx \u7684 <code>directio<\/code> \u6307\u4ee4\u7528\u65bc\u555f\u7528\u6216\u7981\u7528\u76f4\u63a5 I\/O\u3002\u9019\u500b\u6307\u4ee4\u901a\u5e38\u5728\u8655\u7406\u975c\u614b\u6587\u4ef6\u6642\u4f7f\u7528\uff0c\u7279\u5225\u662f\u7576\u6587\u4ef6\u5927\u5c0f\u8f03\u5927\u6642\u3002\u4f7f\u7528 <code>directio<\/code> \u53ef\u4ee5\u6e1b\u5c11\u5167\u5b58\u7684\u4f7f\u7528\uff0c\u4e26\u63d0\u9ad8 I\/O \u6548\u7387\u3002<\/p>\n<h3 id=\"%e6%8c%87%e4%bb%a4%e8%aa%9e%e6%b3%95-TQWnVPqBHm\">\u6307\u4ee4\u8a9e\u6cd5<\/h3>\n<pre><code>directio on|off;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>on<\/code> \u8868\u793a\u555f\u7528\u76f4\u63a5 I\/O\uff0c\u800c <code>off<\/code> \u5247\u8868\u793a\u7981\u7528\u3002\u9019\u500b\u6307\u4ee4\u53ef\u4ee5\u5728 <code>http<\/code>\u3001<code>server<\/code> \u6216 <code>location<\/code> \u5340\u584a\u4e2d\u4f7f\u7528\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-TQWnVPqBHm\">\u4f7f\u7528\u7bc4\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728 Nginx \u914d\u7f6e\u4e2d\u4f7f\u7528 <code>directio<\/code> \u6307\u4ee4\uff1a<\/p>\n<pre><code>server {\n    listen 80;\n    server_name example.com;\n\n    location \/images\/ {\n        root \/var\/www\/html;\n        directio on;\n    }\n}<\/code><\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u7576\u8acb\u6c42 <code>\/images\/<\/code> \u76ee\u9304\u4e2d\u7684\u6587\u4ef6\u6642\uff0cNginx \u5c07\u555f\u7528\u76f4\u63a5 I\/O\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u5c0d\u5927\u6587\u4ef6\u7684\u5b58\u53d6\u6548\u7387\u3002<\/p>\n<h2 id=\"directio-%e7%9a%84%e5%84%aa%e5%8b%a2-TQWnVPqBHm\">directio \u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u6027\u80fd\u63d0\u5347\uff1a<\/strong>\u76f4\u63a5 I\/O \u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u5728\u5167\u5b58\u4e2d\u7684\u8907\u88fd\uff0c\u5f9e\u800c\u63d0\u9ad8 I\/O \u6548\u7387\u3002<\/li>\n<li><strong>\u964d\u4f4e\u5167\u5b58\u4f7f\u7528\uff1a<\/strong>\u5728\u8655\u7406\u5927\u6587\u4ef6\u6642\uff0c\u4f7f\u7528\u76f4\u63a5 I\/O \u53ef\u4ee5\u6e1b\u5c11\u5167\u5b58\u7684\u9700\u6c42\u3002<\/li>\n<li><strong>\u9069\u5408\u9ad8\u6d41\u91cf\u7db2\u7ad9\uff1a<\/strong>\u5c0d\u65bc\u9700\u8981\u8655\u7406\u5927\u91cf\u8acb\u6c42\u7684\u7db2\u7ad9\uff0c\u76f4\u63a5 I\/O \u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u97ff\u61c9\u901f\u5ea6\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-TQWnVPqBHm\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u96d6\u7136 <code>directio<\/code> \u6307\u4ee4\u6709\u5176\u512a\u52e2\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u4e5f\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u5c0f\u6587\u4ef6\u7684\u8acb\u6c42\uff0c\u4f7f\u7528\u76f4\u63a5 I\/O \u53ef\u80fd\u6703\u589e\u52a0 I\/O \u64cd\u4f5c\u7684\u958b\u92b7\u3002\u56e0\u6b64\uff0c\u5728\u555f\u7528 <code>directio<\/code> \u6642\uff0c\u5efa\u8b70\u6839\u64da\u5be6\u969b\u60c5\u6cc1\u9032\u884c\u6e2c\u8a66\uff0c\u4ee5\u78ba\u4fdd\u5176\u5c0d\u6027\u80fd\u7684\u5f71\u97ff\u662f\u6b63\u9762\u7684\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-TQWnVPqBHm\">\u7d50\u8ad6<\/h2>\n<p>Nginx \u7684 <code>directio<\/code> \u6307\u4ee4\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u512a\u5316\u4f3a\u670d\u5668\u6027\u80fd\u3002\u901a\u904e\u5408\u7406\u914d\u7f6e\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u6587\u4ef6\u548c\u9ad8\u6d41\u91cf\u8acb\u6c42\u6642\uff0c\u76f4\u63a5 I\/O \u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u7db2\u7ad9\u7684\u97ff\u61c9\u901f\u5ea6\u548c\u6548\u7387\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u4e86\u89e3\u548c\u4f7f\u7528\u9019\u4e9b\u6307\u4ee4\u5c07\u662f\u975e\u5e38\u6709\u5e6b\u52a9\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3 Nginx \u7684 directio \u6307\u4ee4\uff0c\u4f18\u5316\u6587\u4ef6\u4f20\u8f93\u6027\u80fd\uff0c\u63d0\u5347\u76f4\u63a5 I\/O \u64cd\u4f5c\u6548\u7387\uff0c\u9002\u7528\u4e8e\u9ad8\u8d1f\u8f7d\u73af\u5883\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-50729","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/50729","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=50729"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/50729\/revisions"}],"predecessor-version":[{"id":50730,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/50729\/revisions\/50730"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=50729"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=50729"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=50729"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}