{"id":12904,"date":"2024-03-15T01:37:18","date_gmt":"2024-03-15T01:37:18","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/"},"modified":"2025-08-05T08:31:05","modified_gmt":"2025-08-05T08:31:05","slug":"how-to-clear-the-cache-in-linux","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/","title":{"rendered":"Clear Linux Cache: Step-by-Step Guide"},"content":{"rendered":"

To clear the cache on a Linux system, you can use the following methods:<\/p>\n

    \n
  1. Synchronize the cache to the disk and release the used buffer and page cache by using the sync command.<\/li>\n<\/ol>\n
    $ sync && echo 3 > \/proc\/sys\/vm\/drop_caches\r\n<\/code><\/pre>\n
      \n
    1. Use the sysctl command to modify kernel parameters and clean cache.<\/li>\n<\/ol>\n
      $ sysctl -w vm.drop_caches=3\r\n<\/code><\/pre>\n
        \n
      1. Check system memory usage using the free command, and clear the cache using the echo command.<\/li>\n<\/ol>\n
        $ free -h\r\n$ echo 1 > \/proc\/sys\/vm\/drop_caches\r\n<\/code><\/pre>\n
          \n
        1. Use system tools such as BleachBit for clearing caches.<\/li>\n<\/ol>\n
          It should be noted that clearing the cache may temporarily decrease system performance, as the files need to be reloaded into the cache after cleaning. Therefore, it is only necessary to clear the cache when memory needs to be released or specific issues need to be resolved.<\/p>\n","protected":false},"excerpt":{"rendered":"
          To clear the cache on a Linux system, you can use the following methods: Synchronize the cache to the disk and release the used buffer and page cache by using the sync command. $ sync && echo 3 > \/proc\/sys\/vm\/drop_caches Use the sysctl command to modify kernel parameters and clean cache. $ sysctl -w vm.drop_caches=3 […]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[17010,17014,17013,17011,17012],"class_list":["post-12904","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-clear-linux-cache","tag-drop_caches-linux","tag-free-command-linux","tag-linux-memory-management","tag-linux-sysctl-command"],"yoast_head":"\nClear Linux Cache: Step-by-Step Guide - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to safely clear Linux cache memory using sync, sysctl, and free commands to free up RAM and optimize system performance.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Clear Linux Cache: Step-by-Step Guide\" \/>\n<meta property=\"og:description\" content=\"Learn how to safely clear Linux cache memory using sync, sysctl, and free commands to free up RAM and optimize system performance.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-15T01:37:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-05T08:31:05+00:00\" \/>\n<meta name=\"author\" content=\"Liam\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Liam\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/\"},\"author\":{\"name\":\"Liam\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/23786905eb7b377f45ddb01c17da7671\"},\"headline\":\"Clear Linux Cache: Step-by-Step Guide\",\"datePublished\":\"2024-03-15T01:37:18+00:00\",\"dateModified\":\"2025-08-05T08:31:05+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/\"},\"wordCount\":121,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"keywords\":[\"clear Linux cache\",\"drop_caches Linux\",\"free command Linux\",\"Linux memory management\",\"Linux sysctl command\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/\",\"name\":\"Clear Linux Cache: Step-by-Step Guide - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\"},\"datePublished\":\"2024-03-15T01:37:18+00:00\",\"dateModified\":\"2025-08-05T08:31:05+00:00\",\"description\":\"Learn how to safely clear Linux cache memory using sync, sysctl, and free commands to free up RAM and optimize system performance.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.silicloud.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Clear Linux Cache: Step-by-Step Guide\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/blog\/\",\"name\":\"Silicon Cloud Blog\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\",\"name\":\"Silicon Cloud Blog\",\"url\":\"https:\/\/www.silicloud.com\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png\",\"contentUrl\":\"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png\",\"width\":1024,\"height\":1024,\"caption\":\"Silicon Cloud Blog\"},\"image\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\",\"https:\/\/twitter.com\/SiliCloudGlobal\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/23786905eb7b377f45ddb01c17da7671\",\"name\":\"Liam\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/8d37ed3e7f770dde8bf069ba0b4298688028c3abaacf1131742fc1352d174ebd?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/8d37ed3e7f770dde8bf069ba0b4298688028c3abaacf1131742fc1352d174ebd?s=96&d=mm&r=g\",\"caption\":\"Liam\"},\"sameAs\":[\"http:\/\/Wilson\"],\"url\":\"https:\/\/www.silicloud.com\/blog\/author\/liamwilson\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Clear Linux Cache: Step-by-Step Guide - Blog - Silicon Cloud","description":"Learn how to safely clear Linux cache memory using sync, sysctl, and free commands to free up RAM and optimize system performance.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/","og_locale":"en_US","og_type":"article","og_title":"Clear Linux Cache: Step-by-Step Guide","og_description":"Learn how to safely clear Linux cache memory using sync, sysctl, and free commands to free up RAM and optimize system performance.","og_url":"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/","og_site_name":"Blog - Silicon Cloud","article_publisher":"https:\/\/www.facebook.com\/SiliCloudGlobal\/","article_published_time":"2024-03-15T01:37:18+00:00","article_modified_time":"2025-08-05T08:31:05+00:00","author":"Liam","twitter_card":"summary_large_image","twitter_creator":"@SiliCloudGlobal","twitter_site":"@SiliCloudGlobal","twitter_misc":{"Written by":"Liam","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/#article","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/"},"author":{"name":"Liam","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/23786905eb7b377f45ddb01c17da7671"},"headline":"Clear Linux Cache: Step-by-Step Guide","datePublished":"2024-03-15T01:37:18+00:00","dateModified":"2025-08-05T08:31:05+00:00","mainEntityOfPage":{"@id":"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/"},"wordCount":121,"publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"keywords":["clear Linux cache","drop_caches Linux","free command Linux","Linux memory management","Linux sysctl command"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/","url":"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/","name":"Clear Linux Cache: Step-by-Step Guide - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/#website"},"datePublished":"2024-03-15T01:37:18+00:00","dateModified":"2025-08-05T08:31:05+00:00","description":"Learn how to safely clear Linux cache memory using sync, sysctl, and free commands to free up RAM and optimize system performance.","breadcrumb":{"@id":"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/blog\/how-to-clear-the-cache-in-linux\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.silicloud.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Clear Linux Cache: Step-by-Step Guide"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/blog\/#website","url":"https:\/\/www.silicloud.com\/blog\/","name":"Silicon Cloud Blog","description":"","publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.silicloud.com\/blog\/#organization","name":"Silicon Cloud Blog","url":"https:\/\/www.silicloud.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png","contentUrl":"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png","width":1024,"height":1024,"caption":"Silicon Cloud Blog"},"image":{"@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/SiliCloudGlobal\/","https:\/\/twitter.com\/SiliCloudGlobal"]},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/23786905eb7b377f45ddb01c17da7671","name":"Liam","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/8d37ed3e7f770dde8bf069ba0b4298688028c3abaacf1131742fc1352d174ebd?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/8d37ed3e7f770dde8bf069ba0b4298688028c3abaacf1131742fc1352d174ebd?s=96&d=mm&r=g","caption":"Liam"},"sameAs":["http:\/\/Wilson"],"url":"https:\/\/www.silicloud.com\/blog\/author\/liamwilson\/"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/12904","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/comments?post=12904"}],"version-history":[{"count":2,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/12904\/revisions"}],"predecessor-version":[{"id":156747,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/12904\/revisions\/156747"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/media?parent=12904"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/categories?post=12904"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/tags?post=12904"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}