{"id":13535,"date":"2024-11-15T19:13:17","date_gmt":"2024-11-15T11:13:17","guid":{"rendered":"https:\/\/fwq.ai\/blog\/13535\/"},"modified":"2024-11-15T19:13:17","modified_gmt":"2024-11-15T11:13:17","slug":"docker%e5%ae%b9%e5%99%a8%e5%ad%98%e5%82%a8%e4%bc%98%e5%8c%96%ef%bc%9a%e5%a6%82%e4%bd%95%e6%8f%90%e5%8d%87%e5%ba%94%e7%94%a8%e7%9a%84i-o%e6%80%a7%e8%83%bd","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/13535\/","title":{"rendered":"Docker\u5bb9\u5668\u5b58\u50a8\u4f18\u5316\uff1a\u5982\u4f55\u63d0\u5347\u5e94\u7528\u7684I\/O\u6027\u80fd"},"content":{"rendered":"<h1 id=\"docker%e5%ae%b9%e5%99%a8%e5%ad%98%e5%82%a8%e4%bc%98%e5%8c%96%ef%bc%9a%e5%a6%82%e4%bd%95%e6%8f%90%e5%8d%87%e5%ba%94%e7%94%a8%e7%9a%84i-o%e6%80%a7%e8%83%bd-OLiXqBZSBu\">Docker\u5bb9\u5668\u5b58\u50a8\u4f18\u5316\uff1a\u5982\u4f55\u63d0\u5347\u5e94\u7528\u7684I\/O\u6027\u80fd<\/h1>\n<p>\u5728\u73b0\u4ee3\u5e94\u7528\u5f00\u53d1\u4e2d\uff0cDocker\u5bb9\u5668\u56e0\u5176\u8f7b\u91cf\u7ea7\u548c\u7075\u6d3b\u6027\u800c\u53d7\u5230\u5e7f\u6cdb\u6b22\u8fce\u3002\u7136\u800c\uff0c\u968f\u7740\u5e94\u7528\u7684\u590d\u6742\u6027\u589e\u52a0\uff0cI\/O\u6027\u80fd\u6210\u4e3a\u4e86\u4e00\u4e2a\u4e0d\u5bb9\u5ffd\u89c6\u7684\u95ee\u9898\u3002\u672c\u6587\u5c06\u63a2\u8ba8\u5982\u4f55\u901a\u8fc7\u4f18\u5316Docker\u5bb9\u5668\u7684\u5b58\u50a8\u6765\u63d0\u5347\u5e94\u7528\u7684I\/O\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%90%86%e8%a7%a3docker%e5%ad%98%e5%82%a8%e9%a9%b1%e5%8a%a8-OLiXqBZSBu\">\u7406\u89e3Docker\u5b58\u50a8\u9a71\u52a8<\/h2>\n<p>Docker\u4f7f\u7528\u5b58\u50a8\u9a71\u52a8\u6765\u7ba1\u7406\u5bb9\u5668\u7684\u6587\u4ef6\u7cfb\u7edf\u3002\u4e0d\u540c\u7684\u5b58\u50a8\u9a71\u52a8\u5728\u6027\u80fd\u548c\u529f\u80fd\u4e0a\u5404\u6709\u5dee\u5f02\u3002\u5e38\u89c1\u7684\u5b58\u50a8\u9a71\u52a8\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>Overlay2<\/strong>\uff1a\u9002\u5408\u5927\u591a\u6570\u573a\u666f\uff0c\u6027\u80fd\u8f83\u597d\uff0c\u652f\u6301\u591a\u5c42\u6587\u4ef6\u7cfb\u7edf\u3002<\/li>\n<li><strong>aufs<\/strong>\uff1a\u8f83\u65e9\u7684\u5b58\u50a8\u9a71\u52a8\uff0c\u652f\u6301\u591a\u5c42\uff0c\u4f46\u5728\u67d0\u4e9bLinux\u53d1\u884c\u7248\u4e0a\u53ef\u80fd\u4e0d\u517c\u5bb9\u3002<\/li>\n<li><strong>devicemapper<\/strong>\uff1a\u57fa\u4e8e\u5757\u8bbe\u5907\u7684\u5b58\u50a8\u9a71\u52a8\uff0c\u9002\u5408\u9700\u8981\u9ad8\u6027\u80fd\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n<p>\u9009\u62e9\u5408\u9002\u7684\u5b58\u50a8\u9a71\u52a8\u662f\u4f18\u5316I\/O\u6027\u80fd\u7684\u7b2c\u4e00\u6b65\u3002\u4e00\u822c\u6765\u8bf4\uff0cOverlay2\u662f\u63a8\u8350\u7684\u9009\u62e9\uff0c\u4f46\u5728\u7279\u5b9a\u60c5\u51b5\u4e0b\uff0cdevicemapper\u53ef\u80fd\u4f1a\u63d0\u4f9b\u66f4\u597d\u7684\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bc%98%e5%8c%96%e5%ad%98%e5%82%a8%e9%85%8d%e7%bd%ae-OLiXqBZSBu\">\u4f18\u5316\u5b58\u50a8\u914d\u7f6e<\/h2>\n<p>\u5728Docker\u4e2d\uff0c\u5b58\u50a8\u914d\u7f6e\u7684\u4f18\u5316\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\u5b9e\u73b0\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e5%8d%b7%ef%bc%88volumes%ef%bc%89-OLiXqBZSBu\">1. \u4f7f\u7528\u5377\uff08Volumes\uff09<\/h3>\n<p>Docker\u5377\u662f\u6301\u4e45\u5316\u6570\u636e\u7684\u6700\u4f73\u5b9e\u8df5\u3002\u4e0e\u5bb9\u5668\u6587\u4ef6\u7cfb\u7edf\u76f8\u6bd4\uff0c\u5377\u63d0\u4f9b\u4e86\u66f4\u597d\u7684\u6027\u80fd\u548c\u7ba1\u7406\u80fd\u529b\u3002\u4f7f\u7528\u5377\u53ef\u4ee5\u907f\u514d\u5bb9\u5668\u91cd\u542f\u65f6\u6570\u636e\u4e22\u5931\u7684\u95ee\u9898\u3002<\/p>\n<pre><code>docker volume create my_volume\ndocker run -d -v my_volume:\/data my_image<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e7%bb%91%e5%ae%9a%e6%8c%82%e8%bd%bd%ef%bc%88bind-mounts%ef%bc%89-OLiXqBZSBu\">2. \u4f7f\u7528\u7ed1\u5b9a\u6302\u8f7d\uff08Bind Mounts\uff09<\/h3>\n<p>\u7ed1\u5b9a\u6302\u8f7d\u5141\u8bb8\u5c06\u4e3b\u673a\u6587\u4ef6\u7cfb\u7edf\u7684\u76ee\u5f55\u6302\u8f7d\u5230\u5bb9\u5668\u4e2d\u3002\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u63d0\u9ad8I\/O\u6027\u80fd\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u9891\u7e41\u8bfb\u5199\u7684\u573a\u666f\u4e2d\u3002<\/p>\n<pre><code>docker run -d -v \/host\/path:\/container\/path my_image<\/code><\/pre>\n<h3 id=\"3-%e8%b0%83%e6%95%b4i-o%e8%b0%83%e5%ba%a6%e5%99%a8-OLiXqBZSBu\">3. \u8c03\u6574I\/O\u8c03\u5ea6\u5668<\/h3>\n<p>Linux\u5185\u6838\u63d0\u4f9b\u4e86\u591a\u79cdI\/O\u8c03\u5ea6\u5668\uff0c\u5982CFQ\u3001Deadline\u548cNoop\u3002\u6839\u636e\u5e94\u7528\u7684\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u8c03\u5ea6\u5668\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u5347I\/O\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u9ad8\u968f\u673a\u8bfb\u5199\u7684\u5e94\u7528\uff0c\u4f7f\u7528Deadline\u8c03\u5ea6\u5668\u53ef\u80fd\u4f1a\u66f4\u6709\u6548\u3002<\/p>\n<pre><code>echo deadline &gt; \/sys\/block\/sda\/queue\/scheduler<\/code><\/pre>\n<h2 id=\"%e7%9b%91%e6%8e%a7%e5%92%8c%e5%88%86%e6%9e%90i-o%e6%80%a7%e8%83%bd-OLiXqBZSBu\">\u76d1\u63a7\u548c\u5206\u6790I\/O\u6027\u80fd<\/h2>\n<p>\u4f18\u5316\u5b58\u50a8\u6027\u80fd\u7684\u5173\u952e\u5728\u4e8e\u76d1\u63a7\u548c\u5206\u6790\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u5de5\u5177\u6765\u76d1\u63a7Docker\u5bb9\u5668\u7684I\/O\u6027\u80fd\uff1a<\/p>\n<ul>\n<li><strong>iostat<\/strong>\uff1a\u76d1\u63a7\u7cfb\u7edfI\/O\u8bbe\u5907\u7684\u6027\u80fd\u3002<\/li>\n<li><strong>docker stats<\/strong>\uff1a\u67e5\u770b\u5bb9\u5668\u7684\u5b9e\u65f6\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\u3002<\/li>\n<li><strong>cAdvisor<\/strong>\uff1a\u63d0\u4f9b\u5bb9\u5668\u7684\u6027\u80fd\u76d1\u63a7\u548c\u5206\u6790\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u5b9a\u671f\u76d1\u63a7I\/O\u6027\u80fd\uff0c\u53ef\u4ee5\u53ca\u65f6\u53d1\u73b0\u74f6\u9888\u5e76\u8fdb\u884c\u8c03\u6574\u3002<\/p>\n<h2 id=\"%e6%80%bb%e7%bb%93-OLiXqBZSBu\">\u603b\u7ed3<\/h2>\n<p>\u901a\u8fc7\u9009\u62e9\u5408\u9002\u7684\u5b58\u50a8\u9a71\u52a8\u3001\u4f18\u5316\u5b58\u50a8\u914d\u7f6e\u4ee5\u53ca\u76d1\u63a7I\/O\u6027\u80fd\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u5347Docker\u5bb9\u5668\u4e2d\u5e94\u7528\u7684I\/O\u6027\u80fd\u3002\u5bf9\u4e8e\u9700\u8981\u9ad8\u6027\u80fd\u5b58\u50a8\u89e3\u51b3\u65b9\u6848\u7684\u7528\u6237\uff0c\u7c73\u4e91\u63d0\u4f9b\u4e86\u591a\u79cd\u9009\u62e9\uff0c\u5305\u62ec<a href=\"https:\/\/fwq.ai\">\u7f8e\u56fdVPS<\/a>\u548c<a href=\"https:\/\/fwq.ai\">\u4e91\u670d\u52a1\u5668<\/a>\uff0c\u4ee5\u6ee1\u8db3\u4e0d\u540c\u7684\u9700\u6c42\u3002\u65e0\u8bba\u662f\u9700\u8981\u533f\u540d\u670d\u52a1\u5668\u4fdd\u62a4\u9690\u79c1\uff0c\u8fd8\u662f\u5e0c\u671b\u901a\u8fc7USDT\u4ed8\u6b3e\uff0c\u7c73\u4e91\u90fd\u80fd\u4e3a\u60a8\u63d0\u4f9b\u53ef\u9760\u7684\u670d\u52a1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Docker\u5bb9\u5668\u5b58\u50a8\u4f18\u5316\uff1a\u5982\u4f55\u63d0\u5347\u5e94\u7528\u7684I\/O\u6027\u80fd \u5728\u73b0\u4ee3\u5e94\u7528\u5f00\u53d1\u4e2d\uff0cDocker\u5bb9\u5668\u56e0\u5176\u8f7b\u91cf\u7ea7\u548c\u7075\u6d3b\u6027\u800c\u53d7\u5230\u5e7f\u6cdb\u6b22\u8fce\u3002\u7136\u800c\uff0c\u968f\u7740\u5e94\u7528\u7684\u590d\u6742\u6027\u589e\u52a0\uff0cI\/O\u6027\u80fd\u6210\u4e3a\u4e86\u4e00\u4e2a\u4e0d\u5bb9\u5ffd\u89c6\u7684\u95ee\u9898\u3002\u672c\u6587\u5c06\u63a2\u8ba8\u5982\u4f55\u901a\u8fc7\u4f18\u5316Docker\u5bb9\u5668\u7684\u5b58\u50a8\u6765\u63d0\u5347\u5e94\u7528\u7684I\/O\u6027\u80fd\u3002 \u7406\u89e3Docker\u5b58\u50a8\u9a71\u52a8 Docker\u4f7f\u7528\u5b58\u50a8\u9a71\u52a8\u6765\u7ba1\u7406\u5bb9\u5668\u7684\u6587\u4ef6\u7cfb\u7edf\u3002\u4e0d\u540c\u7684\u5b58\u50a8\u9a71\u52a8\u5728\u6027\u80fd\u548c\u529f\u80fd\u4e0a\u5404\u6709\u5dee\u5f02\u3002\u5e38\u89c1\u7684\u5b58\u50a8\u9a71\u52a8\u5305\u62ec\uff1a Overlay2\uff1a\u9002\u5408\u5927\u591a\u6570\u573a\u666f\uff0c\u6027\u80fd\u8f83\u597d\uff0c\u652f\u6301\u591a\u5c42\u6587\u4ef6\u7cfb\u7edf\u3002 aufs\uff1a\u8f83\u65e9\u7684\u5b58\u50a8\u9a71\u52a8\uff0c\u652f\u6301\u591a\u5c42\uff0c\u4f46\u5728\u67d0\u4e9bLinux\u53d1\u884c\u7248\u4e0a\u53ef\u80fd\u4e0d\u517c\u5bb9\u3002 devicemapper\uff1a\u57fa\u4e8e\u5757\u8bbe\u5907\u7684\u5b58\u50a8\u9a71\u52a8\uff0c\u9002\u5408\u9700\u8981\u9ad8\u6027\u80fd\u7684\u573a\u666f\u3002 \u9009\u62e9\u5408\u9002\u7684\u5b58\u50a8\u9a71\u52a8\u662f\u4f18\u5316I\/O\u6027\u80fd\u7684\u7b2c\u4e00\u6b65\u3002\u4e00\u822c\u6765\u8bf4\uff0cOverlay2\u662f\u63a8\u8350\u7684\u9009\u62e9\uff0c\u4f46\u5728\u7279\u5b9a\u60c5\u51b5\u4e0b\uff0cdevicemapper\u53ef\u80fd\u4f1a\u63d0\u4f9b\u66f4\u597d\u7684\u6027\u80fd\u3002 \u4f18\u5316\u5b58\u50a8\u914d\u7f6e \u5728Docker\u4e2d\uff0c\u5b58\u50a8\u914d\u7f6e\u7684\u4f18\u5316\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\u5b9e\u73b0\uff1a 1. \u4f7f\u7528\u5377\uff08Volumes\uff09 Docker\u5377\u662f\u6301\u4e45\u5316\u6570\u636e\u7684\u6700\u4f73\u5b9e\u8df5\u3002\u4e0e\u5bb9\u5668\u6587\u4ef6\u7cfb\u7edf\u76f8\u6bd4\uff0c\u5377\u63d0\u4f9b\u4e86\u66f4\u597d\u7684\u6027\u80fd\u548c\u7ba1\u7406\u80fd\u529b\u3002\u4f7f\u7528\u5377\u53ef\u4ee5\u907f\u514d\u5bb9\u5668\u91cd\u542f\u65f6\u6570\u636e\u4e22\u5931\u7684\u95ee\u9898\u3002 docker volume create my_volume docker run -d -v my_volume:\/data my_image 2. \u4f7f\u7528\u7ed1\u5b9a\u6302\u8f7d\uff08Bind Mounts\uff09 \u7ed1\u5b9a\u6302\u8f7d\u5141\u8bb8\u5c06\u4e3b\u673a\u6587\u4ef6\u7cfb\u7edf\u7684\u76ee\u5f55\u6302\u8f7d\u5230\u5bb9\u5668\u4e2d\u3002\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u63d0\u9ad8I\/O\u6027\u80fd\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u9891\u7e41\u8bfb\u5199\u7684\u573a\u666f\u4e2d\u3002 docker run -d -v \/host\/path:\/container\/path my_image 3. \u8c03\u6574I\/O\u8c03\u5ea6\u5668 Linux\u5185\u6838\u63d0\u4f9b\u4e86\u591a\u79cdI\/O\u8c03\u5ea6\u5668\uff0c\u5982CFQ\u3001Deadline\u548cNoop\u3002\u6839\u636e\u5e94\u7528\u7684\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u8c03\u5ea6\u5668\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u5347I\/O\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u9ad8\u968f\u673a\u8bfb\u5199\u7684\u5e94\u7528\uff0c\u4f7f\u7528Deadline\u8c03\u5ea6\u5668\u53ef\u80fd\u4f1a\u66f4\u6709\u6548\u3002 echo deadline &gt; \/sys\/block\/sda\/queue\/scheduler \u76d1\u63a7\u548c\u5206\u6790I\/O\u6027\u80fd \u4f18\u5316\u5b58\u50a8\u6027\u80fd\u7684\u5173\u952e\u5728\u4e8e\u76d1\u63a7\u548c\u5206\u6790\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u5de5\u5177\u6765\u76d1\u63a7Docker\u5bb9\u5668\u7684I\/O\u6027\u80fd\uff1a iostat\uff1a\u76d1\u63a7\u7cfb\u7edfI\/O\u8bbe\u5907\u7684\u6027\u80fd\u3002 docker stats\uff1a\u67e5\u770b\u5bb9\u5668\u7684\u5b9e\u65f6\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\u3002 cAdvisor\uff1a\u63d0\u4f9b\u5bb9\u5668\u7684\u6027\u80fd\u76d1\u63a7\u548c\u5206\u6790\u3002 \u901a\u8fc7\u5b9a\u671f\u76d1\u63a7I\/O\u6027\u80fd\uff0c\u53ef\u4ee5\u53ca\u65f6\u53d1\u73b0\u74f6\u9888\u5e76\u8fdb\u884c\u8c03\u6574\u3002 \u603b\u7ed3 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