aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/scheduler/sched-deadline.rst
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/scheduler/sched-deadline.rst')
-rw-r--r--Documentation/scheduler/sched-deadline.rst5
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/scheduler/sched-deadline.rst b/Documentation/scheduler/sched-deadline.rst
index 9d9be52f221a..9fe4846079bb 100644
--- a/Documentation/scheduler/sched-deadline.rst
+++ b/Documentation/scheduler/sched-deadline.rst
@@ -203,12 +203,15 @@ Deadline Task Scheduling
- Total bandwidth (this_bw): this is the sum of all tasks "belonging" to the
runqueue, including the tasks in Inactive state.
+ - Maximum usable bandwidth (max_bw): This is the maximum bandwidth usable by
+ deadline tasks and is currently set to the RT capacity.
+
The algorithm reclaims the bandwidth of the tasks in Inactive state.
It does so by decrementing the runtime of the executing task Ti at a pace equal
to
- dq = -max{ Ui / Umax, (1 - Uinact - Uextra) } dt
+ dq = -(max{ Ui, (Umax - Uinact - Uextra) } / Umax) dt
where: