Messages in this thread Patch in this message | | | From | Tao Ma <> | Subject | [PATCH V2 2/2] Documentation: Add sysfs ABI change for cfq's target latency. | Date | Sat, 31 Mar 2012 23:31:07 +0800 |
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From: Tao Ma <boyu.mt@taobao.com>
Cc: Jens Axboe <axboe@kernel.dk> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tao Ma <boyu.mt@taobao.com> --- Documentation/ABI/testing/sysfs-cfq-target-latency | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-cfq-target-latency
diff --git a/Documentation/ABI/testing/sysfs-cfq-target-latency b/Documentation/ABI/testing/sysfs-cfq-target-latency new file mode 100644 index 0000000..df0f782 --- /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 <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. -- 1.7.0.4
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