[deliverable/linux.git] / Documentation / ABI / testing / sysfs-cfq-target-latency

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.
Commit	Line	Data
407ac95e TM	1	What: /sys/block/<device>/iosched/target_latency
	2	Date: March 2012
	3	contact: Tao Ma <boyu.mt@taobao.com>
	4	Description:
	5	The /sys/block/<device>/iosched/target_latency only exists
	6	when the user sets cfq to /sys/block/<device>/scheduler.
	7	It contains an estimated latency time for the cfq. cfq will
	8	use it to calculate the time slice used for every task.