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authorDhaval Giani <dhaval@linux.vnet.ibm.com>2007-12-12 06:48:59 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2007-12-17 19:33:19 +0100
commit0594fe069df5a10686a3b923b36a0e7a6aed2393 (patch)
treed9d465951c8895b1a570dff6b063a668e8da93be /Documentation/ABI/testing/sysfs-kernel-uids
parentHOWTO: Change man-page maintainer address for Japanese HOWTO (diff)
downloadlinux-0594fe069df5a10686a3b923b36a0e7a6aed2393.tar.xz
linux-0594fe069df5a10686a3b923b36a0e7a6aed2393.zip
Add Documentation for FAIR_USER_SCHED sysfs files
This patch adds documentation about /sys/kernel/uids/<uid>/cpu_share to Documentation/ABI. Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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+What: /sys/kernel/uids/<uid>/cpu_shares
+Date: December 2007
+Contact: Dhaval Giani <dhaval@linux.vnet.ibm.com>
+ Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
+Description:
+ The /sys/kernel/uids/<uid>/cpu_shares tunable is used
+ to set the cpu bandwidth a user is allowed. This is a
+ propotional value. What that means is that if there
+ are two users logged in, each with an equal number of
+ shares, then they will get equal CPU bandwidth. Another
+ example would be, if User A has shares = 1024 and user
+ B has shares = 2048, User B will get twice the CPU
+ bandwidth user A will. For more details refer
+ Documentation/sched-design-CFS.txt