{"id":1683,"date":"2013-08-28T17:41:21","date_gmt":"2013-08-28T09:41:21","guid":{"rendered":"http:\/\/www.huzs.top\/?p=1683"},"modified":"2013-09-05T14:04:58","modified_gmt":"2013-09-05T06:04:58","slug":"centos-%e6%89%8b%e5%8a%a8%e5%a2%9e%e5%8a%a0%e3%80%81%e5%88%a0%e9%99%a4swap%e5%8c%ba","status":"publish","type":"post","link":"https:\/\/www.huzs.top\/?p=1683","title":{"rendered":"CentOS \u624b\u52a8\u589e\u52a0\u3001\u5220\u9664swap\u533a"},"content":{"rendered":"<p>SWAP\u662fLinux\u4e2d\u7684\u865a\u62df\u5185\u5b58\uff0c\u7528\u4e8e\u6269\u5145\u7269\u7406\u5185\u5b58\u4e0d\u8db3\u800c\u7528\u6765\u5b58\u50a8\u4e34\u65f6\u6570\u636e\u5b58\u5728\u7684\u3002\u5b83\u7c7b\u4f3c\u4e8eWindows\u4e2d\u7684\u865a\u62df\u5185\u5b58\u3002\u5728Windows\u4e2d\uff0c\u53ea\u53ef\u4ee5\u4f7f\u7528\u6587\u4ef6\u6765\u5f53\u4f5c\u865a\u62df\u5185\u5b58\u3002\u800clinux\u53ef\u4ee5\u6587\u4ef6\u6216\u8005\u5206\u533a\u6765\u5f53\u4f5c\u865a\u62df\u5185\u5b58\u3002<\/p>\n<p>\u9996\u5148\u67e5\u770b\u5f53\u524d\u7684\u5185\u5b58\u548cswap \u7a7a\u95f4\u5927\u5c0f(\u9ed8\u8ba4\u5355\u4f4d\u4e3ak, -m \u5355\u4f4d\u4e3aM)\uff1a<\/p>\n<pre>free -m<\/pre>\n<p><img decoding=\"async\" alt=\"\" src=\"http:\/\/www.huzs.top\/wp-content\/uploads\/2013\/08\/f19e344a2a6f398ff867bf4a14404d3c.gif\" \/><br \/>\u6b64\u5904\u53ef\u4ee5\u770b\u5230\u603b\u5185\u5b58\u662f503M,SWAP\u4e0d\u5b58\u5728\u3002<\/p>\n<p>\u67e5\u770bswap\u4fe1\u606f\uff0c\u5305\u62ec\u6587\u4ef6\u548c\u5206\u533a\u7684\u8be6\u7ec6\u4fe1\u606f<\/p>\n<pre># swapon -s<\/pre>\n<p>\u6216\u8005<\/p>\n<pre># cat \/proc\/swaps<\/pre>\n<p>\u5982\u679c\u90fd\u6ca1\u6709\uff0c\u6211\u4eec\u5c31\u9700\u8981\u624b\u52a8\u6dfb\u52a0\u4ea4\u6362\u5206\u533a\u3002<span style=\"text-decoration: underline;\">\u6ce8\u610f\uff0cOPENVZ\u67b6\u6784\u7684VPS\u662f\u4e0d\u652f\u6301\u624b\u52a8\u6dfb\u52a0\u4ea4\u6362\u5206\u533a\u7684\u3002<\/span><\/p>\n<p><strong>\u6dfb\u52a0\u4ea4\u6362\u7a7a\u95f4\u6709\u4e24\u79cd\u9009\u62e9\uff1a\u6dfb\u52a0\u4e00\u4e2a\u4ea4\u6362\u5206\u533a\u6216\u6dfb\u52a0\u4e00\u4e2a\u4ea4\u6362\u6587\u4ef6\u3002\u63a8\u8350\u4f60\u6dfb\u52a0\u4e00\u4e2a\u4ea4\u6362\u5206\u533a\uff1b\u4e0d\u8fc7\uff0c\u82e5\u4f60\u6ca1\u6709\u591a\u5c11\u7a7a\u95f2\u7a7a\u95f4\u53ef\u7528\uff0c \u5219\u6dfb\u52a0\u4ea4\u6362\u6587\u4ef6\u3002<\/strong><\/p>\n<p><strong>\u4e00\u3001\u589e\u52a0swap\u4ea4\u6362\u6587\u4ef6<\/strong><\/p>\n<p>1\u3001\u4f7f\u7528dd\u547d\u4ee4\u521b\u5efa\u4e00\u4e2aswap\u4ea4\u6362\u6587\u4ef6<\/p>\n<pre>dd if=\/dev\/zero of=\/home\/swap bs=1024 count=1024000<\/pre>\n<p>\u8fd9\u6837\u5c31\u5efa\u7acb\u4e00\u4e2a\/home\/swap\u7684\u5206\u533a\u6587\u4ef6\uff0c\u5927\u5c0f\u4e3a1G\u3002<\/p>\n<p>2\u3001\u5236\u4f5c\u4e3aswap\u683c\u5f0f\u6587\u4ef6\uff1a<\/p>\n<pre>mkswap \/home\/swap<\/pre>\n<p>3\u3001\u518d\u7528swapon\u547d\u4ee4\u628a\u8fd9\u4e2a\u6587\u4ef6\u5206\u533a\u6302\u8f7dswap\u5206\u533a<\/p>\n<pre>\/sbin\/swapon \/home\/swap<\/pre>\n<p>\u6211\u4eec\u7528free -m\u547d\u4ee4\u770b\u4e00\u4e0b\uff0c\u53d1\u73b0\u5df2\u7ecf\u6709\u4ea4\u6362\u5206\u533a\u4e86\u3002<br \/><img decoding=\"async\" alt=\"\" src=\"http:\/\/www.huzs.top\/wp-content\/uploads\/2013\/08\/cf643d69451cb6b1de3ad6ec95cd53a61.gif\" \/><br \/>\u4f46\u662f\u91cd\u542f\u7cfb\u7edf\u540e\uff0cswap\u5206\u533a\u53c8\u53d8\u62100\u4e86\u3002<\/p>\n<p>4\u3001\u4e3a\u9632\u6b62\u91cd\u542f\u540eswap\u5206\u533a\u53d8\u62100\uff0c\u8981\u4fee\u6539\/etc\/fstab\u6587\u4ef6<\/p>\n<pre>vi \/etc\/fstab<\/pre>\n<p>\u5728\u6587\u4ef6\u672b\u5c3e\uff08\u6700\u540e\u4e00\u884c\uff09\u52a0\u4e0a<\/p>\n<pre>\/home\/swap swap swap default 0 0<\/pre>\n<p>\u8fd9\u6837\u5c31\u7b97\u91cd\u542f\u7cfb\u7edf\uff0cswap\u5206\u533a\u8fd8\u662f\u6709\u503c\u3002<\/p>\n<p><strong>\u5220\u9664swap\u4ea4\u6362\u6587\u4ef6<\/strong><\/p>\n<p>1\u3001\u5148\u505c\u6b62swap\u5206\u533a<\/p>\n<pre>\/sbin\/swapoff \/home\/swap<\/pre>\n<p>2\u3001\u5220\u9664swap\u5206\u533a\u6587\u4ef6<\/p>\n<pre>rm -rf \/home\/swap<\/pre>\n<p>3\u3001\u5220\u9664\u81ea\u52a8\u6302\u8f7d\u914d\u7f6e\u547d\u4ee4<\/p>\n<pre>vi \/etc\/fstab<\/pre>\n<p>\u8fd9\u884c\u5220\u9664<\/p>\n<pre>\/home\/swap swap swap default 0 0<\/pre>\n<p>\u8fd9\u6837\u5c31\u80fd\u628a\u624b\u52a8\u589e\u52a0\u7684\u4ea4\u6362\u6587\u4ef6\u5220\u9664\u4e86\u3002<br \/>\u6ce8\u610f\uff1a<br \/>1\u3001\u589e\u52a0\u5220\u9664swap\u7684\u64cd\u4f5c\u53ea\u80fd\u4f7f\u7528root\u7528\u6237\u6765\u64cd\u4f5c\u3002<br \/>2\u3001\u88c5\u7cfb\u7edf\u65f6\u5206\u914d\u7684swap\u5206\u533a\u8c8c\u4f3c\u5220\u9664\u4e0d\u4e86\u3002<br \/>3\u3001swap\u5206\u533a\u4e00\u822c\u4e3a\u5185\u5b58\u76842\u500d\uff0c\u4f46\u6700\u5927\u4e0d\u8d85\u8fc72G<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u4e8c\u3001\u4f7f\u7528\u5206\u533a\u6765\u505aSWAP(\u865a\u62df\u5185\u5b58).<\/strong><br \/>1\u00a0 \u4f7f\u7528fdisk\u6765\u521b\u5efa\u4ea4\u6362\u5206\u533a\uff08\u5047\u8bbe \/dev\/sdb2 \u662f\u521b\u5efa\u7684\u4ea4\u6362\u5206\u533a\uff09<br \/>2 \u4f7f\u7528 mkswap \u547d\u4ee4\u6765\u8bbe\u7f6e\u4ea4\u6362\u5206\u533a\uff1a<\/p>\n<pre># mkswap \/dev\/sdb2<\/pre>\n<p>3 \u542f\u7528\u4ea4\u6362\u5206\u533a\uff1a<\/p>\n<pre># swapon \/dev\/sdb2<\/pre>\n<p>4 \u5199\u5165\/etc\/fstab,\u4ee5\u4fbf\u5728\u5f15\u5bfc\u65f6\u542f\u7528\uff1a<\/p>\n<pre>\/dev\/sdb2 swap swap defaults 0 0<\/pre>\n<p><strong>\u5220\u9664\u4ea4\u6362\u5206\u533a<\/strong><br \/>\u6b65\u9aa4\u5982\u4e0b\uff1a<br \/>1\u3001\u5148\u505c\u6b62swap\u5206\u533a<\/p>\n<pre>\/sbin\/swapoff \/dev\/sdb2<\/pre>\n<p>2\u3001\u5220\u9664\u81ea\u52a8\u6302\u8f7d\u914d\u7f6e\u547d\u4ee4<\/p>\n<pre>vi \/etc\/fstab<\/pre>\n<p>\u8fd9\u884c\u5220\u9664<\/p>\n<pre>\/dev\/sdb2 swap swap defaults 0 0<\/pre>\n<p>\u8fd9\u6837\u5c31\u80fd\u628a\u624b\u52a8\u589e\u52a0\u7684\u4ea4\u6362\u5206\u533a\u5220\u9664\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SWAP\u662fLinux\u4e2d\u7684\u865a\u62df\u5185\u5b58\uff0c\u7528\u4e8e\u6269\u5145\u7269\u7406\u5185\u5b58\u4e0d\u8db3\u800c\u7528\u6765\u5b58\u50a8\u4e34\u65f6\u6570\u636e\u5b58\u5728\u7684\u3002\u5b83\u7c7b\u4f3c\u4e8eWindows\u4e2d\u7684\u865a\u62df [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1683","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/posts\/1683","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1683"}],"version-history":[{"count":0,"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/posts\/1683\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1683"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1683"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1683"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}