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| author | Vineeth Pillai <vineeth@bitbyteword.org> | 2023-05-30 09:55:26 -0400 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2023-06-16 22:08:12 +0200 |
| commit | e20f204c88d595c04fc9197794bb68c0fbabd902 (patch) | |
| tree | 6644f5678097f1248ccf560fe0bff6c0167fbe3f /Documentation/scheduler | |
| parent | 6a9d623aad89539eca71eb264db6b9d538620ad5 (diff) | |
| download | lwn-e20f204c88d595c04fc9197794bb68c0fbabd902.tar.gz lwn-e20f204c88d595c04fc9197794bb68c0fbabd902.zip | |
sched/deadline: Update GRUB description in the documentation
Update the details of GRUB to reflect the updated logic.
Signed-off-by: Vineeth Pillai (Google) <vineeth@bitbyteword.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Acked-by: Juri Lelli <juri.lelli@redhat.com>
Link: https://lore.kernel.org/r/20230530135526.2385378-2-vineeth@bitbyteword.org
Diffstat (limited to 'Documentation/scheduler')
| -rw-r--r-- | Documentation/scheduler/sched-deadline.rst | 5 |
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: |