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Based on kernel version 3.13. Page generated on 2014-01-20 21:59 EST.

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.
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