Commit e20f204c authored by Vineeth Pillai's avatar Vineeth Pillai Committed by Peter Zijlstra
Browse files

sched/deadline: Update GRUB description in the documentation 



Update the details of GRUB to reflect the updated logic.

Signed-off-by: default avatarVineeth Pillai (Google) <vineeth@bitbyteword.org>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: default avatarDaniel Bristot de Oliveira <bristot@kernel.org>
Acked-by: default avatarJuri Lelli <juri.lelli@redhat.com>
Link: https://lore.kernel.org/r/20230530135526.2385378-2-vineeth@bitbyteword.org
parent 6a9d623a

Documentation/scheduler/sched-deadline.rst

+4 −1
Original line number Original line Diff line number Diff line
@@ -203,12 +203,15 @@ Deadline Task Scheduling 
  - Total bandwidth (this_bw): this is the sum of all tasks "belonging" to the

  - Total bandwidth (this_bw): this is the sum of all tasks "belonging" to the

    runqueue, including the tasks in Inactive state.

    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.

 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

 It does so by decrementing the runtime of the executing task Ti at a pace equal

 to

 to





           dq = -max{ Ui / Umax, (1 - Uinact - Uextra) } dt

           dq = -(max{ Ui, (Umax - Uinact - Uextra) } / Umax) dt





 where:

 where: