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

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

authored by

Tao Ma and committed by

Jens Axboe 14 years ago 407ac95e 5bf14c07

1 changed file

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Documentation

ABI

testing

sysfs-cfq-target-latency

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

··· 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.