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authorDhaval Giani <dhaval@linux.vnet.ibm.com>2007-12-12 11:18:59 +0530
committerGreg Kroah-Hartman <gregkh@suse.de>2007-12-17 10:33:19 -0800
commit0594fe069df5a10686a3b923b36a0e7a6aed2393 (patch)
treed9d465951c8895b1a570dff6b063a668e8da93be /Documentation/ABI
parente11d044efdd2e5c837c4d470fc447b49a9aebfe1 (diff)
downloadlinux-0594fe069df5a10686a3b923b36a0e7a6aed2393.tar.gz
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>

Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-kernel-uids14
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-kernel-uids b/Documentation/ABI/testing/sysfs-kernel-uids
new file mode 100644
index 000000000000..648d65dbc0e7
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-uids
@@ -0,0 +1,14 @@
+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