{"id":111,"date":"2024-04-10T15:43:02","date_gmt":"2024-04-10T07:43:02","guid":{"rendered":"https:\/\/www.bensonmax.net\/?p=111"},"modified":"2024-04-10T15:43:07","modified_gmt":"2024-04-10T07:43:07","slug":"linux-%e5%a2%9e%e5%8a%a0-swap","status":"publish","type":"post","link":"https:\/\/www.bensonmax.net\/?p=111","title":{"rendered":"Linux \u589e\u52a0 Swap"},"content":{"rendered":"\n<div class=\"wp-block-group is-vertical is-content-justification-stretch is-layout-flex wp-container-core-group-is-layout-33ccc8b1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">Linux \u589e\u52a0 Swap \u7a7a\u9593<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u958b\u59cb\u524d\u5148\u6aa2\u67e5\u4e00\u4e9b\u76ee\u524d\u7cfb\u7d71\u662f\u5426\u6709\u8a2d\u5b9a Swap \u7a7a\u9593, \u53ef\u4ee5\u7528 &#8220;swapon -s&#8221; \u6307\u4ee4\u6aa2\u67e5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># swapon -s\nFilename   Type      Size    Used   Priority\n\/dev\/sda2  partition 2097148 38516  -1<\/code><\/pre>\n<\/div>\n\n\n\n<!--more-->\n\n\n\n<div class=\"wp-block-group is-vertical is-content-justification-stretch is-layout-flex wp-container-core-group-is-layout-33ccc8b1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">\u4e0a\u770b\u5230\u76ee\u524d\u7cfb\u7d71\u6709 2 GB Swap \u7a7a\u9593, \u4f7f\u7528\u4e86 37MB.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7136\u5f8c\u518d\u770b\u770b\u7cfb\u7d71\u5404\u5206\u5272\u5340\u7684\u53ef\u7528\u7a7a\u9593:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>df -h<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5047\u8a2d\u6211\u8981\u5728 \/ \u4e0b\u9762\u5efa\u7acb 4GB \u7684 Swap \u6a94\u6848, \u53ef\u4ee5\u7528 fallocate \u6307\u4ee4, \u8a9e\u6cd5\u5982\u4e0b:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>fallocate -l 4G \/swapfile<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5efa\u7acb\u597d \/swapfile \u6a94\u6848\u5f8c, \u7136\u5f8c\u9700\u8981\u683c\u5f0f\u5316\u9019\u500b Swap \u6a94\u6848, <br>\u4e26\u8a2d\u5b9a\u7cfb\u7d71\u4f7f\u7528\u9019\u500b\u6a94\u6848\u4f5c\u70ba Swap \u7a7a\u9593:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>chmod 600 \/swapfile\nmkswap \/swapfile\nswapon \/swapfile<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a2d\u5b9a\u5b8c\u6210\u5f8c, \u53ef\u4ee5\u518d\u7528 &#8220;swapon -s&#8221;\u6aa2\u67e5\u8a2d\u5b9a\u662f\u5426\u751f\u6548:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># swapon -s\nFilename  Type Size    Used Priority\n\/swapfile file 4194300 0    -1<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\u7cfb\u7d71\u5df2\u7d93\u53ef\u4ee5\u4f7f\u7528 \/swapfile \u7528\u70ba Swap \u7a7a\u9593, \u4f46\u7576\u91cd\u65b0\u555f\u52d5\u7cfb\u7d71\u5f8c,<br>\u8a2d\u5b9a\u5c31\u6703\u5931\u6548, \u8981\u5728\u91cd\u65b0\u958b\u6a5f\u5f8c\u81ea\u52d5\u4f7f\u7528 \/swapfile \u4f5c\u70ba Swap \u7a7a\u9593, <br>\u9700\u8981\u4fee\u6539 \/etc\/fstab \u6a94\u6848:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>vi \/etc\/fstab<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u6700\u4f4e\u4e0b\u52a0\u4e0b\u9019\u884c:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/swapfile swap swap sw 0 0<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5132\u5b58\u5f8c\u5c31\u5b8c\u6210\u8a2d\u5b9a\u4e86\u3002<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Linux \u589e\u52a0 Swap \u7a7a\u9593 \u5728\u958b\u59cb\u524d\u5148\u6aa2\u67e5\u4e00\u4e9b\u76ee\u524d\u7cfb\u7d71\u662f\u5426\u6709\u8a2d\u5b9a Swap \u7a7a\u9593, \u53ef\u4ee5\u7528 &#038;#8220 &hellip; <a href=\"https:\/\/www.bensonmax.net\/?p=111\" class=\"more-link\">\u95b1\u8b80\u5168\u6587<span class=\"screen-reader-text\">\u3008Linux \u589e\u52a0 Swap\u3009<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-111","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.bensonmax.net\/index.php?rest_route=\/wp\/v2\/posts\/111","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bensonmax.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bensonmax.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bensonmax.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bensonmax.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=111"}],"version-history":[{"count":1,"href":"https:\/\/www.bensonmax.net\/index.php?rest_route=\/wp\/v2\/posts\/111\/revisions"}],"predecessor-version":[{"id":112,"href":"https:\/\/www.bensonmax.net\/index.php?rest_route=\/wp\/v2\/posts\/111\/revisions\/112"}],"wp:attachment":[{"href":"https:\/\/www.bensonmax.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bensonmax.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=111"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bensonmax.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}