{"id":2001,"date":"2011-11-01T08:10:43","date_gmt":"2011-11-01T00:10:43","guid":{"rendered":"http:\/\/www.jpuyy.com\/blog\/?p=2001"},"modified":"2016-05-30T16:27:49","modified_gmt":"2016-05-30T08:27:49","slug":"linux-create-swap","status":"publish","type":"post","link":"https:\/\/jpuyy.com\/?p=2001","title":{"rendered":"\u5728\/var\/\u4e0b\u65b0\u5efa512MB\u7684swap\u6587\u4ef6"},"content":{"rendered":"<p>\u5207\u6362\u5230\/var\/\uff0c\u4e5f\u53ef\u4ee5\u5230\u5176\u4ed6\u7684\u76ee\u5f55<\/p>\n<pre>#cd \/var\/<\/pre>\n<p>\u521b\u5efa\u4e00\u4e2a524288kB\u7684swapfile<br \/>\nPS\uff1a\u53ef\u4ee5\u7528\u8fd9\u4e2a\u547d\u4ee4\u6765\u67e5\u770b\u4f60\u786c\u76d8\u64cd\u4f5c\u6587\u4ef6\u7684\u901f\u5ea6<\/p>\n<pre>root@www:\/var# dd if=\/dev\/zero of=swapfile bs=1024 count=524288<\/pre>\n<p>524288+0 records in<br \/>\n524288+0 records out<br \/>\n536870912 bytes (537 MB) copied, 11.9503 s, 44.9 MB\/s<br \/>\n\u4f7f\u7528mkswap\u628a\u6587\u4ef6\u53d8\u4e3aswap\u683c\u5f0f\uff0c\u8fd9\u65f6\u4f1a\u663e\u793auuid<\/p>\n<pre>root@www:\/var# \/sbin\/mkswap swapfile<\/pre>\n<p>mkswap: swapfile: warning: don&#8217;t erase bootbits sectors on whole disk. Use -f to force.<br \/>\nSetting up swapspace version 1, size = 524284 KiB<br \/>\nno label, UUID=6c026854-1d78-48ef-9bd4-9f67a17a471f<br \/>\n\u5f00\u542f\u8fd9\u4e2a\u4ea4\u6362\u7a7a\u95f4<\/p>\n<pre>root@www:\/var# \/sbin\/swapon swapfile<\/pre>\n<p>\u5f53\u4e0d\u60f3\u4f7f\u7528\u4ea4\u6362\u6587\u4ef6\u7684\u65f6\u5019<\/p>\n<p>\u5148\u7528 swapon -s\u67e5\u770b\u90fd\u6709\u54ea\u4e9bswap\u8bbe\u5907\uff0c\u5982\u4e0b\uff0c\u6211\u7684\u6709\u4e00\u4e2a\u7269\u7406\u5206\u533a\u548c\u4e00\u4e2a\u6587\u4ef6\u578b\u7684swap<\/p>\n<pre>root@www:\/var# swapon -s<\/pre>\n<p>Filename\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Type\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Size\u00a0\u00a0\u00a0 Used\u00a0\u00a0\u00a0 Priority<br \/>\n\/dev\/sda2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 partition\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1048568 23844\u00a0\u00a0 -1<br \/>\n\/var\/swapfile\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 file\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 524280\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 -2<\/p>\n<p>\u6216\u67e5\u770b \/proc\/swaps<\/p>\n<pre>cat \/proc\/swaps<\/pre>\n<p>\u63a5\u4e0b\u6765\u5173\u6389swapfile\u5e76\u5220\u9664<\/p>\n<pre>swapoff \/var\/swapfile\r\nrm \/var\/swapfile<\/pre>\n<p>:)EOT<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5207\u6362\u5230\/var\/\uff0c\u4e5f\u53ef\u4ee5\u5230\u5176\u4ed6\u7684\u76ee\u5f55 #cd \/var\/ \u521b\u5efa\u4e00\u4e2a524288kB\u7684swapfile PS\uff1a\u53ef\u4ee5\u7528\u8fd9\u4e2a\u547d\u4ee4\u6765\u67e5\u770b\u4f60\u786c\u76d8\u64cd\u4f5c\u6587\u4ef6\u7684\u901f\u5ea6 root@www:\/var# dd if=\/dev\/zero of=swapfile bs=1024 count=524288 524288+0 records in 524288+0 records out 536870912 bytes (537 MB) copied, 11.9503 s, 44.9 MB\/s \u4f7f\u7528mkswap\u628a\u6587\u4ef6\u53d8\u4e3aswap\u683c\u5f0f\uff0c\u8fd9\u65f6\u4f1a\u663e\u793auuid root@www:\/var# \/sbin\/mkswap swapfile mkswap: swapfile: warning: don&#8217;t erase bootbits sectors on whole disk. Use -f to force. Setting up swapspace version 1, size = 524284 KiB no label, [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[23],"class_list":["post-2001","post","type-post","status-publish","format-standard","hentry","category-linux","tag-summary"],"_links":{"self":[{"href":"https:\/\/jpuyy.com\/index.php?rest_route=\/wp\/v2\/posts\/2001","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jpuyy.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jpuyy.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jpuyy.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/jpuyy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2001"}],"version-history":[{"count":14,"href":"https:\/\/jpuyy.com\/index.php?rest_route=\/wp\/v2\/posts\/2001\/revisions"}],"predecessor-version":[{"id":7764,"href":"https:\/\/jpuyy.com\/index.php?rest_route=\/wp\/v2\/posts\/2001\/revisions\/7764"}],"wp:attachment":[{"href":"https:\/\/jpuyy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2001"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jpuyy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2001"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jpuyy.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}