{"id":5427,"date":"2020-08-14T17:37:56","date_gmt":"2020-08-14T09:37:56","guid":{"rendered":"http:\/\/39.97.231.10\/?p=5427"},"modified":"2020-08-14T17:37:56","modified_gmt":"2020-08-14T09:37:56","slug":"linux-%e7%b3%bb%e7%bb%9f-swap-%e6%89%a9%e5%ae%b9","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=5427","title":{"rendered":"Linux \u7cfb\u7edf swap \u6269\u5bb9"},"content":{"rendered":"<h1>swap\u7a7a\u95f4\u4ecb\u7ecd<\/h1>\n<div>\nswap\u5206\u533a\u7684\u7528\u5904\uff1aswap\u662f\u5f53\u7269\u7406\u5185\u5b58\u4e0d\u591f\u7528\u7684\u65f6\u5019\uff0c\u628a\u6570\u636e\u653e\u5230swap\u4e2d\uff0c\u6240\u4ee5swap\u8d77\u5230\u4e86\u4e00\u4e2a\u865a\u62df\u5185\u5b58\u7684\u4f5c\u7528\uff0c\u5728\u67d0\u79cd\u610f\u4e49\u4e0a\u6765\u8bf4\u4e5f\u7b97\u662f\u52a0\u5927\u4e86\u5185\u5b58\u7a7a\u95f4\u3002\u4e00\u822cswap\u5206\u533a\u662f\u5728\u5b89\u88c5\u7cfb\u7edf\u65f6\u8bbe\u7f6e\u7684\uff0c\u5982\u679c\u5b89\u88c5\u7cfb\u7edf\u65f6\u5fd8\u8bb0\u5206swap\u5206\u533a\u6216\u8005\u5206\u533a\u592a\u5c0f\uff0c\u90a3\u4e5f\u6ca1\u4e8b\uff0c\u8fd8\u6709\u8865\u6551\u7684\u65b9\u6cd5\u3002\u4e0b\u9762\u5c31\u8bb2\u8bb2\u5b89\u88c5\u5b8cCentOS\u7cfb\u7edf\u540e\u5982\u4f55\u7ed9swap\u5206\u533a\u6269\u5bb9\u3002<br \/>\n\u573a\u666f\uff1a<br \/>\n\u5b89\u88c5\u5b8cCentOS Linux\u7cfb\u7edf\u540e\uff0c\u5b89\u88c5oracle\u53d1\u4e0bswap\u5927\u5c0f\u4e0d\u591f\u7528\u3002<br \/>\n\u4ee5\u4e0b\u64cd\u4f5c\u5747\u5728root\u7528\u6237\u4e0b\u64cd\u4f5c\uff0c\u4f7f\u7528root\u7528\u6237\u64cd\u4f5c\u8bf7\u8c28\u614e<\/p>\n<h3>\u67e5\u770b\u5f53\u524dswap\u7a7a\u95f4\u5927\u5c0f<\/h3>\n<pre>[root@localhost \/]# free -m\n             total       used       free     shared    buffers     cached\nMem:         31978      31653        325        869        392      18485\n-\/+ buffers\/cache:      12775      19203\nSwap:         5519       0          5519<\/pre>\n<h3>\u5173\u95edSWAP<\/h3>\n<p>swapoff -a<\/p>\n<h3>\u6dfb\u52a0swap\u5206\u533a<\/h3>\n<p>dd if=\/dev\/zero of=\/var\/swapfile bs=1M count=1024<\/p>\n<ul>\n<li>\/var\/swapfile\uff1aswap\u6587\u4ef6\u7684\u8def\u5f84\u548c\u6587\u4ef6\u540d<\/li>\n<li>counter\u662f\u544a\u8bc9\u7a0b\u5e8f\uff0c\u65b0\u7684swapfile\u8981\u591a\u5c11\u4e2ablock\u3002\u8fd9\u91cc\u662f1024\uff0c\u5c31\u662f\u8bf4\uff0c\u65b0\u7684swap\u6587\u4ef6\u662f1G\u5927\u5c0f\u3002<\/li>\n<\/ul>\n<h3>\u628a\u589e\u5927\u540e\u7684\u6587\u4ef6\u53d8\u4e3aswap\u6587\u4ef6<\/h3>\n<p>mkswap \/swapfile<\/p>\n<h3>\u7ed9swap\u6587\u4ef6\u8d4b\u6743\u9650<\/h3>\n<p>chmod -R 0600 \/var\/swapfile<\/p>\n<h3>\u6302\u8f7d\u5e76\u6fc0\u6d3bswap\u5206\u533a<\/h3>\n<p>swapon \/var\/swapfile<\/p>\n<h3>\u8bbe\u7f6e\u5f00\u673a\u81ea\u52a8\u6302\u8f7d\u8be5\u5206\u533a<\/h3>\n<pre>vi \/etc\/fstab\n# \u5728fstab\u6587\u4ef6\u672b\u5c3e\u8ffd\u52a0\u5982\u4e0b\u5185\u5bb9\u540e:wq!\u4fdd\u5b58\u5373\u53ef\uff1a\n\/var\/swapfile swap swap defaults 0 0<\/pre>\n<h3>\u67e5\u770b\u6269\u5bb9\u540e\u7684swap\u7a7a\u95f4\u5927\u5c0f<\/h3>\n<pre>[root@localhost \/]# free -m\n             total       used       free     shared    buffers     cached\nMem:         31978      31653        325        869        392      18485\n-\/+ buffers\/cache:      12775      19203\nSwap:         6543       0          6543<\/pre>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>swap\u7a7a\u95f4\u4ecb\u7ecd swap\u5206\u533a\u7684\u7528\u5904\uff1aswap\u662f\u5f53\u7269\u7406\u5185\u5b58\u4e0d\u591f\u7528\u7684\u65f6\u5019\uff0c\u628a\u6570\u636e\u653e\u5230swap\u4e2d\uff0c\u6240\u4ee5swap\u8d77\u5230 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/www.weijing.co\/?p=5427\"> <span class=\"screen-reader-text\">Linux \u7cfb\u7edf swap \u6269\u5bb9<\/span> \u67e5\u770b\u5168\u6587 &raquo;<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[102,124],"tags":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"mailpoet_newsletter_max":false,"woocommerce_thumbnail":false,"woocommerce_single":false,"woocommerce_gallery_thumbnail":false,"shop_catalog":false,"shop_single":false,"shop_thumbnail":false},"uagb_author_info":{"display_name":"weijing","author_link":"http:\/\/www.weijing.co\/?author=4"},"uagb_comment_info":1,"uagb_excerpt":"swap\u7a7a\u95f4\u4ecb\u7ecd swap\u5206\u533a\u7684\u7528\u5904\uff1aswap\u662f\u5f53\u7269\u7406\u5185\u5b58\u4e0d\u591f\u7528\u7684\u65f6\u5019\uff0c\u628a\u6570\u636e\u653e\u5230swap\u4e2d\uff0c\u6240\u4ee5swap\u8d77\u5230&hellip;","_links":{"self":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/5427"}],"collection":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5427"}],"version-history":[{"count":0,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/5427\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5427"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5427"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5427"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}