diff options
| author | Tao Ma <[email protected]> | 2012-04-01 14:33:40 -0700 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2012-04-01 14:33:40 -0700 |
| commit | 407ac95e2271a310016ced97f407676e79c53c06 (patch) | |
| tree | f644750773554011a3cc7cbeebf5f14adf0a79ce | |
| parent | 5bf14c0727a07ded1bd9fa6d77923d7e6dc32833 (diff) | |
Documentation: Add sysfs ABI change for cfq's target latency.
Cc: Jens Axboe <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Tao Ma <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
| -rw-r--r-- | Documentation/ABI/testing/sysfs-cfq-target-latency | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-cfq-target-latency b/Documentation/ABI/testing/sysfs-cfq-target-latency new file mode 100644 index 000000000000..df0f7828c5e3 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-cfq-target-latency @@ -0,0 +1,8 @@ +What: /sys/block/<device>/iosched/target_latency +Date: March 2012 +contact: Tao Ma <[email protected]> +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. |