{"id":213,"date":"2009-05-08T10:50:47","date_gmt":"2009-05-08T03:50:47","guid":{"rendered":"http:\/\/blog.iwayvietnam.com\/tuanta\/?p=213"},"modified":"2009-05-14T17:28:56","modified_gmt":"2009-05-14T10:28:56","slug":"giam-io-load-linux","status":"publish","type":"post","link":"https:\/\/blog.iwayvietnam.com\/tuanta\/2009\/05\/giam-io-load-linux\/","title":{"rendered":"Gi\u1ea3m IO load, t\u0103ng t\u1ed1c \u0111\u1ecdc\/ghi d\u1eef li\u1ec7u tr\u00ean Linux Desktops"},"content":{"rendered":"

Hi\u1ec7n c\u00e1c thi\u1ebft l\u1eadp m\u1eb7c \u0111\u1ecbnh c\u1ee7a file system trong Linux h\u01b0\u1edbng \u0111\u1ebfn t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u h\u01a1n l\u00e0 t\u1ed1c \u0111\u1ed9, do v\u1eady vi\u1ec7c s\u1eed d\u1ee5ng \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng thi\u1ebfu RAM, c\u1ea7n s\u1eed d\u1ee5ng nhi\u1ec1u swap, s\u1ebd b\u1ecb ch\u1eadm \u0111i. \u0110\u1ed1i v\u1edbi m\u1ed9t h\u1ec7 th\u1ed1ng Linux desktop th\u00ec y\u1ebfu t\u1ed1 t\u01b0\u01a1ng t\u00e1c quan tr\u1ecdng h\u01a1n s\u1ed1 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c throughput trong m\u1ed9t gi\u00e2y.<\/p>\n

Ch\u00fang ta c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 \u0111i\u1ec1u ch\u1ec9nh tham s\u1ed1 sau \u0111\u1ec3 gi\u1ea3m IO load, \u0111\u1ea3m b\u1ea3o t\u1ed1c \u0111\u1ed9 t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng trong m\u1ecdi \u0111i\u1ec1u ki\u1ec7n:<\/p>\n

    \n
  1. Ch\u1ec9nh s\u1eeda file \/etc\/grub.conf, trong ph\u1ea7n tham s\u1ed1 kh\u1edfi \u0111\u1ed9ng kernel:
    \nkernel \/vmlinuz-2.6.27.21-170.2.56.fc10.i686 ro root=\/dev\/VolGroup00\/LogVol00 rhgb quiet elevator=anticipatory rootflags=data=writeback<\/code><\/li>\n
  2. Ch\u1ec9nh s\u1eeda file \/etc\/fstab, th\u00eam tham s\u1ed1 “noatime<\/code>” v\u00e0o sau tham s\u1ed1 “default<\/code>“.
    \n\/dev\/VolGroup00\/LogVol00 \/ ext3 defaults,noatime 1 1<\/code><\/li>\n
  3. Reboot.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

    Hi\u1ec7n c\u00e1c thi\u1ebft l\u1eadp m\u1eb7c \u0111\u1ecbnh c\u1ee7a file system trong Linux h\u01b0\u1edbng \u0111\u1ebfn t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u h\u01a1n l\u00e0 t\u1ed1c \u0111\u1ed9, do v\u1eady vi\u1ec7c s\u1eed d\u1ee5ng \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng thi\u1ebfu RAM, c\u1ea7n s\u1eed d\u1ee5ng nhi\u1ec1u swap, s\u1ebd b\u1ecb ch\u1eadm \u0111i. \u0110\u1ed1i v\u1edbi m\u1ed9t h\u1ec7 th\u1ed1ng Linux desktop th\u00ec y\u1ebfu t\u1ed1 t\u01b0\u01a1ng t\u00e1cContinue reading “Gi\u1ea3m IO load, t\u0103ng t\u1ed1c \u0111\u1ecdc\/ghi d\u1eef li\u1ec7u tr\u00ean Linux Desktops”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21,34],"tags":[],"class_list":["post-213","post","type-post","status-publish","format-standard","hentry","category-linux","category-weekly-tips","entry"],"_links":{"self":[{"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/posts\/213"}],"collection":[{"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/comments?post=213"}],"version-history":[{"count":7,"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/posts\/213\/revisions"}],"predecessor-version":[{"id":220,"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/posts\/213\/revisions\/220"}],"wp:attachment":[{"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/media?parent=213"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/categories?post=213"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.iwayvietnam.com\/tuanta\/wp-json\/wp\/v2\/tags?post=213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}