{"id":613,"date":"2021-01-21T05:50:09","date_gmt":"2021-01-21T08:50:09","guid":{"rendered":"https:\/\/helpsysadmin.com.br\/blog\/how-to-check-disk-i-o-speed-in-linux\/"},"modified":"2025-11-08T11:58:28","modified_gmt":"2025-11-08T14:58:28","slug":"how-to-check-disk-i-o-speed-in-linux","status":"publish","type":"post","link":"https:\/\/helpsysadmin.com.br\/blog\/en\/how-to-check-disk-i-o-speed-in-linux\/","title":{"rendered":"How to check disk I\/O speed in linux"},"content":{"rendered":"<div id=\"helps-493352022\" class=\"helps-before-content-2 helps-entity-placement\"><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3661896953164277\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- 2anuncios display quadrado -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-3661896953164277\"\r\n     data-ad-slot=\"5051229894\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n<p>Nowadays, more and more we want faster sites, for that it is necessary a good configuration of server, VPS or Dedicated, but it is not enough to just think about the processor and ram memory. The I\/O (Input\/Output) speed, that is, the speed at which the server can read and write data to the disk, is essential for the performance of websites on the server.<br>A good disk can give you performance benefits and increase your site&#8217;s speed and ranking.<br><br>Most data centers and hosting providers offer cached SSD or SSD disk space, a few still use the old magnetic HDD.<br><br>In this article we will see a simple way to check your server&#8217;s I\/O speed (VPS\/Dedicated)<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-command-to-check-disk-i-o-speed\">Command to check disk I\/O speed:<\/h3>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>dd if=\/dev\/zero of=test bs=64k count=16k conv=fdatasync &amp;&amp; rm -rf test<\/pre><\/div>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>[root@helpsysadmin ~]$ dd if=\/dev\/zero of=test bs=64k count=16k conv=fdatasync &amp;&amp; rm -rf test\n16384+0 records in\n16384+0 records out\n1073741824 bytes (1.1 GB) copied, 2.31902 s, 463 MB\/s<\/pre><\/div>\n\n\n\n<p>Here we can see a very fast disk &#8221; <strong>463 MB\/s<\/strong> &#8220;, this is for sure a good SSD disk.<br><br>If your disk returns a low value like <strong>85\/90 MB\/s<\/strong> , I suggest changing disk or provider.<\/p>\n\n\n\n<p><a data-schema-attribute=\"about mentions\" aria-label=\" (opens in a new tab)\" class=\"rank-math-link\" href=\"https:\/\/helpsysadmin.com.br\" target=\"_blank\" rel=\"noreferrer noopener\">HelpSysAdmin<\/a> can help you optimize your server for superior performance.<\/p>\n\n\n\n<p>See more: <strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/en\/benchmark-script-on-linux\/\">Benchmark Script on Linux<\/a><\/strong><br><br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nowadays, more and more we want faster sites, for that it is necessary a good configuration of server, VPS or Dedicated, but [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1204],"tags":[],"class_list":["post-613","post","type-post","status-publish","format-standard","hentry","category-server-management"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.6) - 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