Commit 407ac95e authored by Tao Ma's avatar Tao Ma Committed by Jens Axboe
Browse files

Documentation: Add sysfs ABI change for cfq's target latency. 



Cc: Jens Axboe <axboe@kernel.dk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarTao Ma <boyu.mt@taobao.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 5bf14c07

Documentation/ABI/testing/sysfs-cfq-target-latency

0 → 100644
+8 −0
Original line number Diff line number Diff line 
What:		/sys/block/<device>/iosched/target_latency

Date:		March 2012

contact:	Tao Ma <boyu.mt@taobao.com>

Description:

		The /sys/block/<device>/iosched/target_latency only exists

		when the user sets cfq to /sys/block/<device>/scheduler.

		It contains an estimated latency time for the cfq. cfq will

		use it to calculate the time slice used for every task.