{"id":13022,"date":"2024-11-15T14:47:30","date_gmt":"2024-11-15T06:47:30","guid":{"rendered":"https:\/\/fwq.ai\/blog\/13022\/"},"modified":"2024-11-15T14:47:30","modified_gmt":"2024-11-15T06:47:30","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8docker%e4%b8%ad%e4%bc%98%e5%8c%96%e5%ae%b9%e5%99%a8%e6%95%b0%e6%8d%ae%e5%ad%98%e5%82%a8%e7%bb%93%e6%9e%84%e4%bb%a5%e6%8f%90%e9%ab%98i-o%e6%95%88%e7%8e%87%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/13022\/","title":{"rendered":"\u5982\u4f55\u5728Docker\u4e2d\u4f18\u5316\u5bb9\u5668\u6570\u636e\u5b58\u50a8\u7ed3\u6784\u4ee5\u63d0\u9ad8I\/O\u6548\u7387\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8docker%e4%b8%ad%e4%bc%98%e5%8c%96%e5%ae%b9%e5%99%a8%e6%95%b0%e6%8d%ae%e5%ad%98%e5%82%a8%e7%bb%93%e6%9e%84%e4%bb%a5%e6%8f%90%e9%ab%98i-o%e6%95%88%e7%8e%87%ef%bc%9f-BeuBttJgJJ\">\u5982\u4f55\u5728Docker\u4e2d\u4f18\u5316\u5bb9\u5668\u6570\u636e\u5b58\u50a8\u7ed3\u6784\u4ee5\u63d0\u9ad8I\/O\u6548\u7387\uff1f<\/h1>\n<p>\u5728\u73b0\u4ee3\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u4e2d\uff0cDocker\u5df2\u6210\u4e3a\u4e00\u79cd\u6d41\u884c\u7684\u5bb9\u5668\u5316\u6280\u672f\u3002\u5b83\u5141\u8bb8\u5f00\u53d1\u8005\u5c06\u5e94\u7528\u7a0b\u5e8f\u53ca\u5176\u4f9d\u8d56\u9879\u6253\u5305\u5728\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684\u5bb9\u5668\u4e2d\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u9ad8\u7684\u53ef\u79fb\u690d\u6027\u548c\u4e00\u81f4\u6027\u3002\u7136\u800c\uff0c\u968f\u7740\u5e94\u7528\u7a0b\u5e8f\u7684\u590d\u6742\u6027\u589e\u52a0\uff0c\u5bb9\u5668\u7684\u6570\u636e\u5b58\u50a8\u7ed3\u6784\u7684\u4f18\u5316\u53d8\u5f97\u5c24\u4e3a\u91cd\u8981\uff0c\u5c24\u5176\u662f\u5728I\/O\u6548\u7387\u65b9\u9762\u3002\u672c\u6587\u5c06\u63a2\u8ba8\u5982\u4f55\u5728Docker\u4e2d\u4f18\u5316\u5bb9\u5668\u6570\u636e\u5b58\u50a8\u7ed3\u6784\uff0c\u4ee5\u63d0\u9ad8I\/O\u6548\u7387\u3002<\/p>\n<h2 id=\"%e7%90%86%e8%a7%a3docker%e5%ad%98%e5%82%a8%e9%a9%b1%e5%8a%a8-BeuBttJgJJ\">\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\u5177\u6709\u4e0d\u540c\u7684\u6027\u80fd\u7279\u5f81\u548cI\/O\u6548\u7387\u3002\u5e38\u89c1\u7684\u5b58\u50a8\u9a71\u52a8\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>Overlay2\uff1a<\/strong>\u8fd9\u662fDocker\u63a8\u8350\u7684\u5b58\u50a8\u9a71\u52a8\uff0c\u9002\u7528\u4e8e\u5927\u591a\u6570Linux\u53d1\u884c\u7248\u3002\u5b83\u652f\u6301\u9ad8\u6548\u7684\u6587\u4ef6\u7cfb\u7edf\u5c42\u53e0\uff0c\u80fd\u591f\u51cf\u5c11I\/O\u64cd\u4f5c\u3002<\/li>\n<li><strong>aufs\uff1a<\/strong>\u4e00\u4e2a\u8f83\u65e9\u7684\u5b58\u50a8\u9a71\u52a8\uff0c\u652f\u6301\u591a\u5c42\u6587\u4ef6\u7cfb\u7edf\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6027\u80fd\u74f6\u9888\u3002<\/li>\n<li><strong>devicemapper\uff1a<\/strong>\u57fa\u4e8e\u5757\u8bbe\u5907\u7684\u5b58\u50a8\u9a71\u52a8\uff0c\u9002\u5408\u9700\u8981\u9ad8\u6027\u80fd\u7684\u573a\u666f\uff0c\u4f46\u914d\u7f6e\u8f83\u4e3a\u590d\u6742\u3002<\/li>\n<\/ul>\n<p>\u9009\u62e9\u5408\u9002\u7684\u5b58\u50a8\u9a71\u52a8\u662f\u4f18\u5316I\/O\u6548\u7387\u7684\u7b2c\u4e00\u6b65\u3002\u5bf9\u4e8e\u5927\u591a\u6570\u5e94\u7528\uff0c\u63a8\u8350\u4f7f\u7528Overlay2\u9a71\u52a8\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%8d%b7%ef%bc%88volumes%ef%bc%89%e7%ae%a1%e7%90%86%e6%95%b0%e6%8d%ae-BeuBttJgJJ\">\u4f7f\u7528\u5377\uff08Volumes\uff09\u7ba1\u7406\u6570\u636e<\/h2>\n<p>\u5728Docker\u4e2d\uff0c\u4f7f\u7528\u5377\u6765\u7ba1\u7406\u6570\u636e\u662f\u63d0\u9ad8I\/O\u6548\u7387\u7684\u6709\u6548\u65b9\u6cd5\u3002\u5377\u662fDocker\u7ba1\u7406\u7684\u6301\u4e45\u5316\u5b58\u50a8\uff0c\u53ef\u4ee5\u5728\u5bb9\u5668\u4e4b\u95f4\u5171\u4eab\u6570\u636e\u3002\u4e0e\u5bb9\u5668\u6587\u4ef6\u7cfb\u7edf\u76f8\u6bd4\uff0c\u5377\u5177\u6709\u66f4\u597d\u7684\u6027\u80fd\u548c\u66f4\u9ad8\u7684\u7075\u6d3b\u6027\u3002<\/p>\n<h3 id=\"%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e5%8d%b7-BeuBttJgJJ\">\u521b\u5efa\u548c\u4f7f\u7528\u5377<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u521b\u5efa\u4e00\u4e2a\u5377\uff1a<\/p>\n<pre><code>docker volume create my_volume<\/code><\/pre>\n<p>\u7136\u540e\uff0c\u5728\u8fd0\u884c\u5bb9\u5668\u65f6\uff0c\u53ef\u4ee5\u5c06\u5377\u6302\u8f7d\u5230\u5bb9\u5668\u4e2d\uff1a<\/p>\n<pre><code>docker run -d -v my_volume:\/data my_image<\/code><\/pre>\n<p>\u901a\u8fc7\u4f7f\u7528\u5377\uff0c\u6570\u636e\u5b58\u50a8\u5728\u4e3b\u673a\u6587\u4ef6\u7cfb\u7edf\u4e2d\uff0c\u51cf\u5c11\u4e86\u5bb9\u5668\u91cd\u542f\u6216\u5220\u9664\u65f6\u6570\u636e\u4e22\u5931\u7684\u98ce\u9669\uff0c\u540c\u65f6\u63d0\u9ad8\u4e86I\/O\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bc%98%e5%8c%96%e6%96%87%e4%bb%b6%e7%b3%bb%e7%bb%9f%e6%80%a7%e8%83%bd-BeuBttJgJJ\">\u4f18\u5316\u6587\u4ef6\u7cfb\u7edf\u6027\u80fd<\/h2>\n<p>\u6587\u4ef6\u7cfb\u7edf\u7684\u9009\u62e9\u548c\u914d\u7f6e\u5bf9I\/O\u6548\u7387\u6709\u76f4\u63a5\u5f71\u54cd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f18\u5316\u5efa\u8bae\uff1a<\/p>\n<ul>\n<li><strong>\u9009\u62e9\u5408\u9002\u7684\u6587\u4ef6\u7cfb\u7edf\uff1a<\/strong>\u5bf9\u4e8e\u9ad8I\/O\u8d1f\u8f7d\u7684\u5e94\u7528\uff0c\u5efa\u8bae\u4f7f\u7528XFS\u6216EXT4\u6587\u4ef6\u7cfb\u7edf\uff0c\u8fd9\u4e9b\u6587\u4ef6\u7cfb\u7edf\u5728\u5904\u7406\u5927\u91cf\u5c0f\u6587\u4ef6\u65f6\u8868\u73b0\u66f4\u4f73\u3002<\/li>\n<li><strong>\u8c03\u6574\u6587\u4ef6\u7cfb\u7edf\u53c2\u6570\uff1a<\/strong>\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574\u6587\u4ef6\u7cfb\u7edf\u7684\u6302\u8f7d\u9009\u9879\u6765\u4f18\u5316\u6027\u80fd\uff0c\u4f8b\u5982\u4f7f\u7528noatime\u9009\u9879\u6765\u51cf\u5c11I\/O\u64cd\u4f5c\u3002<\/li>\n<\/ul>\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-BeuBttJgJJ\">\u76d1\u63a7\u548c\u5206\u6790I\/O\u6027\u80fd<\/h2>\n<p>\u5b9a\u671f\u76d1\u63a7\u548c\u5206\u6790I\/O\u6027\u80fd\u662f\u4f18\u5316\u7684\u5173\u952e\u3002\u53ef\u4ee5\u4f7f\u7528\u5de5\u5177\u5982<i>iostat<\/i>\u3001<i>iotop<\/i>\u548c<i>docker stats<\/i>\u6765\u83b7\u53d6I\/O\u6027\u80fd\u6570\u636e\u3002\u8fd9\u4e9b\u5de5\u5177\u53ef\u4ee5\u5e2e\u52a9\u8bc6\u522b\u74f6\u9888\u548c\u4f18\u5316\u673a\u4f1a\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e4%bd%bf%e7%94%a8iostat%e7%9b%91%e6%8e%a7i-o%e6%80%a7%e8%83%bd-BeuBttJgJJ\">\u793a\u4f8b\uff1a\u4f7f\u7528iostat\u76d1\u63a7I\/O\u6027\u80fd<\/h3>\n<pre><code>iostat -x 1<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u5c06\u6bcf\u79d2\u663e\u793a\u4e00\u6b21I\/O\u7edf\u8ba1\u4fe1\u606f\uff0c\u5e2e\u52a9\u60a8\u4e86\u89e3\u7cfb\u7edf\u7684I\/O\u8d1f\u8f7d\u60c5\u51b5\u3002<\/p>\n<h2 id=\"%e6%80%bb%e7%bb%93-BeuBttJgJJ\">\u603b\u7ed3<\/h2>\n<p>\u5728Docker\u4e2d\u4f18\u5316\u5bb9\u5668\u6570\u636e\u5b58\u50a8\u7ed3\u6784\u4ee5\u63d0\u9ad8I\/O\u6548\u7387\u662f\u4e00\u4e2a\u591a\u65b9\u9762\u7684\u8fc7\u7a0b\uff0c\u5305\u62ec\u9009\u62e9\u5408\u9002\u7684\u5b58\u50a8\u9a71\u52a8\u3001\u4f7f\u7528\u5377\u7ba1\u7406\u6570\u636e\u3001\u4f18\u5316\u6587\u4ef6\u7cfb\u7edf\u6027\u80fd\u4ee5\u53ca\u5b9a\u671f\u76d1\u63a7I\/O\u6027\u80fd\u3002\u901a\u8fc7\u5b9e\u65bd\u8fd9\u4e9b\u7b56\u7565\uff0c\u60a8\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u54cd\u5e94\u901f\u5ea6\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5bfb\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/fwq.ai\">\u4e91\u670d\u52a1\u5668<\/a> \u89e3\u51b3\u65b9\u6848\uff0c\u7c73\u4e91\u63d0\u4f9b\u591a\u79cd\u9009\u62e9\uff0c\u5305\u62ec\u7f8e\u56fdVPS\u548c\u533f\u540d\u670d\u52a1\u5668\uff0c\u5e2e\u52a9\u60a8\u4fdd\u62a4\u9690\u79c1\u6743\u5e76\u63d0\u5347\u6570\u636e\u5b58\u50a8\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u5728Docker\u4e2d\u4f18\u5316\u5bb9\u5668\u6570\u636e\u5b58\u50a8\u7ed3\u6784\u4ee5\u63d0\u9ad8I\/O\u6548\u7387\uff1f \u5728\u73b0\u4ee3\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u4e2d\uff0cDocker\u5df2\u6210\u4e3a\u4e00\u79cd\u6d41\u884c\u7684\u5bb9\u5668\u5316\u6280\u672f\u3002\u5b83\u5141\u8bb8\u5f00\u53d1\u8005\u5c06\u5e94\u7528\u7a0b\u5e8f\u53ca\u5176\u4f9d\u8d56\u9879\u6253\u5305\u5728\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684\u5bb9\u5668\u4e2d\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u9ad8\u7684\u53ef\u79fb\u690d\u6027\u548c\u4e00\u81f4\u6027\u3002\u7136\u800c\uff0c\u968f\u7740\u5e94\u7528\u7a0b\u5e8f\u7684\u590d\u6742\u6027\u589e\u52a0\uff0c\u5bb9\u5668\u7684\u6570\u636e\u5b58\u50a8\u7ed3\u6784\u7684\u4f18\u5316\u53d8\u5f97\u5c24\u4e3a\u91cd\u8981\uff0c\u5c24\u5176\u662f\u5728I\/O\u6548\u7387\u65b9\u9762\u3002\u672c\u6587\u5c06\u63a2\u8ba8\u5982\u4f55\u5728Docker\u4e2d\u4f18\u5316\u5bb9\u5668\u6570\u636e\u5b58\u50a8\u7ed3\u6784\uff0c\u4ee5\u63d0\u9ad8I\/O\u6548\u7387\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\u5177\u6709\u4e0d\u540c\u7684\u6027\u80fd\u7279\u5f81\u548cI\/O\u6548\u7387\u3002\u5e38\u89c1\u7684\u5b58\u50a8\u9a71\u52a8\u5305\u62ec\uff1a Overlay2\uff1a\u8fd9\u662fDocker\u63a8\u8350\u7684\u5b58\u50a8\u9a71\u52a8\uff0c\u9002\u7528\u4e8e\u5927\u591a\u6570Linux\u53d1\u884c\u7248\u3002\u5b83\u652f\u6301\u9ad8\u6548\u7684\u6587\u4ef6\u7cfb\u7edf\u5c42\u53e0\uff0c\u80fd\u591f\u51cf\u5c11I\/O\u64cd\u4f5c\u3002 aufs\uff1a\u4e00\u4e2a\u8f83\u65e9\u7684\u5b58\u50a8\u9a71\u52a8\uff0c\u652f\u6301\u591a\u5c42\u6587\u4ef6\u7cfb\u7edf\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6027\u80fd\u74f6\u9888\u3002 devicemapper\uff1a\u57fa\u4e8e\u5757\u8bbe\u5907\u7684\u5b58\u50a8\u9a71\u52a8\uff0c\u9002\u5408\u9700\u8981\u9ad8\u6027\u80fd\u7684\u573a\u666f\uff0c\u4f46\u914d\u7f6e\u8f83\u4e3a\u590d\u6742\u3002 \u9009\u62e9\u5408\u9002\u7684\u5b58\u50a8\u9a71\u52a8\u662f\u4f18\u5316I\/O\u6548\u7387\u7684\u7b2c\u4e00\u6b65\u3002\u5bf9\u4e8e\u5927\u591a\u6570\u5e94\u7528\uff0c\u63a8\u8350\u4f7f\u7528Overlay2\u9a71\u52a8\u3002 \u4f7f\u7528\u5377\uff08Volumes\uff09\u7ba1\u7406\u6570\u636e \u5728Docker\u4e2d\uff0c\u4f7f\u7528\u5377\u6765\u7ba1\u7406\u6570\u636e\u662f\u63d0\u9ad8I\/O\u6548\u7387\u7684\u6709\u6548\u65b9\u6cd5\u3002\u5377\u662fDocker\u7ba1\u7406\u7684\u6301\u4e45\u5316\u5b58\u50a8\uff0c\u53ef\u4ee5\u5728\u5bb9\u5668\u4e4b\u95f4\u5171\u4eab\u6570\u636e\u3002\u4e0e\u5bb9\u5668\u6587\u4ef6\u7cfb\u7edf\u76f8\u6bd4\uff0c\u5377\u5177\u6709\u66f4\u597d\u7684\u6027\u80fd\u548c\u66f4\u9ad8\u7684\u7075\u6d3b\u6027\u3002 \u521b\u5efa\u548c\u4f7f\u7528\u5377 \u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u521b\u5efa\u4e00\u4e2a\u5377\uff1a docker volume create my_volume 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