{"id":1328,"date":"2010-08-14T03:48:36","date_gmt":"2010-08-13T19:48:36","guid":{"rendered":"http:\/\/imc123.net\/?p=1328"},"modified":"2010-08-19T21:26:06","modified_gmt":"2010-08-19T13:26:06","slug":"linux%e8%a8%98%e6%86%b6%e9%ab%94%e9%87%8b%e6%94%be%e6%8c%87%e4%bb%a4","status":"publish","type":"post","link":"https:\/\/jimmy.twmie.org\/?p=1328","title":{"rendered":"Linux\u8a18\u61b6\u9ad4\u91cb\u653e\u6307\u4ee4"},"content":{"rendered":"

echo <\/span><\/span>1<\/span><\/span> > \/proc\/sys\/vm\/drop_caches
\n<\/span><\/span><\/code>echo<\/span><\/span> <\/span><\/span><\/span>2<\/span><\/span> > \/proc\/sys\/vm\/drop_caches
\n<\/span><\/span><\/span>\u5efa\u8b70\u7528\u7b2c<\/span>1\u884c\u3001\u7b2c2\u884c<\/span><\/span>\u6307\u4ee4\u53ef\u5373\u53ef\uff0c\u53ef\u5f9edentries\u3001inodes\u4e2d\u58d3\u51fa\u66f4\u591a\u7684\u7a7a\u9593\uff0c<\/span><\/span>\u4f46<\/span>echo <\/span><\/span><\/span><\/span>3<\/span><\/span><\/span><\/span>\u4e0d\u5efa\u8b70\uff0c\u56e0\u70ba<\/span><\/span><\/span>\u5bb9\u6613\u9020\u6210\u7cfb\u7d71\u932f\u8aa4<\/span><\/span><\/span><\/span>\uff0c\u53e6\u5916\u91cb\u653e\u5b8c<\/span>1\u30012<\/span><\/span>\u5f8c\uff0c<\/span><\/span><\/span>\u8acb\u5728\u8abf\u70ba\u9810\u8a2d\u503c<\/span><\/span><\/span><\/span>\uff0c
\n<\/span><\/span><\/span>\u8acb\u8f38\u5165\u6307\u4ee4\uff1a<\/span><\/span>echo<\/span><\/span> <\/span><\/span>0<\/span><\/span><\/span><\/span> > \/proc\/sys\/vm\/drop_caches<\/span><\/span><\/span>
\n\u5b8c\u6210\u641e\u5b9a!!
\n\u5176\u5be6LINUX\u4e0d\u592a\u9700\u8981\u53bb\u7406\u6703\u8a18\u61b6\u9ad4\u4f7f\u7528\u72c0\u6cc1\uff0c\u56e0\u70ba\u7cfb\u7d71\u6703\u81ea\u884c\u7ba1\u7406\uff0c
\n<\/span>\u82e5\u8a18\u61b6\u9ad4\u4e0d\u8db3\u5e38\u5c0e\u81f4\u96fb\u8166\u8b8a\u6162\u6216\u7570\u5e38\uff0c\u5c31\u6703\u5efa\u8b70\u76f4\u63a5\u52a0\u5927\u8a18\u61b6\u9ad4\u3002<\/span>(\u73fe\u5728\u8a18\u61b6\u9ad4\u4e5f\u90fd\u883b\u4fbf\u5b9c\u7684\uff09<\/span><\/p>\n

\u53e6\u5916\u6709\u4e9b\u4eba\u53ef\u4eba\u6703\u64d4\u5fc3\u8a18\u61b6\u9ad4\u7684used\u91cf\u5927\uff0c\u800cfree\u91cf\u5c0f\uff0c\u6015\u8a18\u61b6\u9ad4\u4e0d\u8db3\uff0c
\n\u5176\u5be6\u54ea\u4e5f\u662f\u6b63\u5e38\u7684\uff0c\u8a18\u61b6\u9ad4used\u5927\u591a\u8dd1\u5230cached\u4e86\uff0c\u6240\u4ee5\u6703\u986f\u5f97\u8a18\u61b6\u9ad4\u597d\u50cf\u5feb\u4e0d\u5920\u7528\u4e86\uff0c
\n\u4f46\u662f\u7576\u4f60\u5728\u5de5\u4f5c\u6642\uff0c\u7cfb\u7d71\u6703\u81ea\u7136\u5c07cached\u91cb\u653e\u51fa\u4f86\u7d66user\u3002
\nfree\u6c38\u9060\u90fd\u662f\u5269\u90a3\u9ebc\u4e00\u9ede\u662f\u4e0d\u6703\u5f71\u56aeserver\u6548\u80fd!<\/p>\n

\u90a3\u4f55\u6642\u8a72\u52a0\u5927\u8a18\u61b6\u9ad4\u5462?
\n\u7576\u60a8\u7684\u8a18\u61b6\u9ad4\u4f7f\u7528\u3001Swap\u540c\u6642\u90fd\u8655\u65bc\u9ad8\u503c\u6642\uff0c\u60a8\u53ef\u80fd\u5c31\u9700\u8981\u8003\u616e\u52a0\u5927\u8a18\u61b6\u88e1\u4e86\u3002\u00a0
\n\u56e0\u70ba\u9019\u6a23\u6709\u53ef\u80fd\u6703\u9020\u6210\u7cfb\u7d71\u4e0d\u7a69\u3001\u4ee5\u53ca\u7cfb\u7d71\u932f\u8aa4\u3002
\n
\nPS:LINUX\u66f4\u65b0\u6307\u4ee4\uff1a<\/span>yum update
\n<\/span><\/span>(\u8f38\u5165\u6307\u4ee4\u5f8c\u7cfb\u7d71\u6703\u986f\u793a\u66f4\u65b0\u9805\u76ee\uff0c\u4e26\u554f\u4f60\u662f\u5426\u8f38\u5165\uff0c\u6309Y\u5f8c\uff0c\u5373\u53ef\u81ea\u52d5\u4e0b\u8f09\u8207\u66f4\u65b0!)
\n\u82e5\u7121\u66f4\u65b0\u7cfb\u7d71\u6703\u986f\u793a\u7121\u9808\u66f4\u65b0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

echo 1 > \/proc\/sys\/vm\/drop_caches echo 2 > \/…<\/p>\n

Continue reading<\/span><\/i><\/a> <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[14],"tags":[],"class_list":["post-1328","post","type-post","status-publish","format-standard","hentry","category-linux"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/jimmy.twmie.org\/index.php?rest_route=\/wp\/v2\/posts\/1328","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jimmy.twmie.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmy.twmie.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmy.twmie.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmy.twmie.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1328"}],"version-history":[{"count":0,"href":"https:\/\/jimmy.twmie.org\/index.php?rest_route=\/wp\/v2\/posts\/1328\/revisions"}],"wp:attachment":[{"href":"https:\/\/jimmy.twmie.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmy.twmie.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmy.twmie.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}