linux-kernel - [PATCH 4/7] Add Documentation for FAIR_USER

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Date:	Mon, 17 Dec 2007 12:33:20 -0800
From:	Greg Kroah-Hartman <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org
Cc:	Dhaval Giani <dhaval@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 4/7] Add Documentation for FAIR_USER_SCHED sysfs files

From: Dhaval Giani <dhaval@...ux.vnet.ibm.com>

This patch adds documentation about /sys/kernel/uids/<uid>/cpu_share
to Documentation/ABI.

Signed-off-by: Dhaval Giani <dhaval@...ux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@...e.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 Documentation/ABI/testing/sysfs-kernel-uids |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/ABI/testing/sysfs-kernel-uids

diff --git a/Documentation/ABI/testing/sysfs-kernel-uids b/Documentation/ABI/testing/sysfs-kernel-uids
new file mode 100644
index 0000000..648d65d
--- /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@...ux.vnet.ibm.com>
+		Srivatsa Vaddagiri <vatsa@...ux.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
-- 
1.5.3.7

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