{"id":146,"date":"2021-09-19T21:27:49","date_gmt":"2021-09-19T13:27:49","guid":{"rendered":"http:\/\/dmoe.nicolite.cn\/?p=146"},"modified":"2021-09-19T21:27:51","modified_gmt":"2021-09-19T13:27:51","slug":"ubuntu-server-20-04-lts%e5%bc%80%e5%90%afswap","status":"publish","type":"post","link":"https:\/\/dmoe.nicolite.cn\/?p=146","title":{"rendered":"Ubuntu Server 20.04 LTS\u5f00\u542fswap"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u521b\u5efaswap\u6587\u4ef6<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo dd if=\/dev\/zero of=\/swapfile count=2048 bs=1M<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u6fc0\u6d3bswap\u6587\u4ef6<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo chmod 600 \/swapfile\nsudo mkswap \/swapfile<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u5f00\u542fswap<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo swapon \/swapfile<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u5f00\u673a\u81ea\u52a8\u5f00\u542fswap<\/h2>\n\n\n\n<p>\u60f3\u8981\u5f00\u673a\u542f\u52a8\u81ea\u52a8\u5f00\u542fswap\uff0c\u9700\u8981\u5728\/etc\/fstab\u4e2d\u6dfb\u52a0swapfile\u7684\u6302\u8f7d\u4fe1\u606f\uff0c\u6dfb\u52a0\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/swapfile swap swap defaults 0 0\r<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u914d\u7f6eswap\u9608\u503c<\/h2>\n\n\n\n<p>ubuntu\u7684\u9ed8\u8ba4swap\u9608\u503c\u4e3a60\uff0c\u503c\u8d8a\u5927\u4f7f\u7528\u8d8a\u79ef\u6781\u3002\u53ef\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u5f53\u524d\u6570\u503c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cat \/proc\/sys\/vm\/swappiness<\/pre>\n\n\n\n<p>\u5bf9\u4e8eUbuntu Server\uff0c\u4e00\u822c\u60c5\u51b5\u4e0b\u5e0c\u671b\u5c3d\u53ef\u80fd\u7684\u5148\u4f7f\u7528\u5185\u5b58\uff0c\u6240\u4ee5\u8bbe\u7f6e\u4e3a10\u5373\u53ef\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo sysctl vm.swappiness=10\r<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u60f3\u8981\u91cd\u542f\u4e4b\u540e\u8fd8\u751f\u6548\u7684\u8bdd\uff0c\u9700\u8981\u5728\/etc\/sysctl.conf\u6dfb\u52a0\u4ee5\u4e0b\u914d\u7f6e\u5185\u5bb9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vm.swappiness=10<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u516d\u3001\u5173\u95edswap<\/h2>\n\n\n\n<p>1\u3001\u505c\u7528swap\u7a7a\u95f4\uff0c\u9700\u8981\u4fdd\u8bc1\u53ef\u7528\u5185\u5b58\u5927\u4e8eswap\u5df2\u4f7f\u7528\u7a7a\u95f4\uff0c\u5426\u5219\u4f1a\u56e0\u4e3a\u5185\u5b58\u8017\u5c3d\u5361\u6b7b\u673a\u5668\uff0cswapfile\u4e3a\u5f53\u524d\u4f7f\u7528\u7684swap\u6587\u4ef6\u540d<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>sudo swapoff -v \/swapfile<\/code><\/pre>\n\n\n\n<p>2\u3001\u5220\u9664\/etc\/fstab\u4e2d\u7684swap\u6302\u8f7d\u914d\u7f6e<\/p>\n\n\n\n<p>3\u3001\u5220\u9664swapfile<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo rm \/swapfile<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u521b\u5efaswap\u6587\u4ef6 \u4e8c\u3001\u6fc0\u6d3bswap\u6587\u4ef6 \u4e09\u3001\u5f00\u542fswap \u56db\u3001\u5f00\u673a\u81ea\u52a8\u5f00\u542fswap \u60f3\u8981\u5f00\u673a\u542f\u52a8\u81ea\u52a8\u5f00\u542fs [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[21,2],"class_list":["post-146","post","type-post","status-publish","format-standard","hentry","category-19","tag-swap","tag-ubuntu"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"_links":{"self":[{"href":"https:\/\/dmoe.nicolite.cn\/index.php?rest_route=\/wp\/v2\/posts\/146","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dmoe.nicolite.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dmoe.nicolite.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dmoe.nicolite.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dmoe.nicolite.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=146"}],"version-history":[{"count":0,"href":"https:\/\/dmoe.nicolite.cn\/index.php?rest_route=\/wp\/v2\/posts\/146\/revisions"}],"wp:attachment":[{"href":"https:\/\/dmoe.nicolite.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dmoe.nicolite.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=146"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dmoe.nicolite.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}