Messages in this thread Patch in this message | | | Date | Tue, 19 May 2015 00:23:37 -0700 | From | tip-bot for Zhiqiang Zhang <> | Subject | [tip:sched/core] sched/dl/Documentation: Correct the definition of density as C_i/min{D_i,P_i} |
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Commit-ID: 3aed357ee499c71f589a2537af6ec7785029873f Gitweb: http://git.kernel.org/tip/3aed357ee499c71f589a2537af6ec7785029873f Author: Zhiqiang Zhang <zhangzhiqiang.zhang@huawei.com> AuthorDate: Mon, 18 May 2015 15:00:24 +0200 Committer: Ingo Molnar <mingo@kernel.org> CommitDate: Tue, 19 May 2015 08:39:19 +0200
sched/dl/Documentation: Correct the definition of density as C_i/min{D_i,P_i}
C_i/min{D_i,T_i}, where T_i is not referred before, should be substituted with C_i/min{D_i,P_i}.
Signed-off-by: Zhiqiang Zhang <zhangzhiqiang.zhang@huawei.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: henrik@austad.us Cc: juri.lelli@gmail.com Cc: raistlin@linux.it Link: http://lkml.kernel.org/r/1431954032-16473-2-git-send-email-luca.abeni@unitn.it Signed-off-by: Ingo Molnar <mingo@kernel.org> --- Documentation/scheduler/sched-deadline.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Documentation/scheduler/sched-deadline.txt b/Documentation/scheduler/sched-deadline.txt index 21461a0..194664b 100644 --- a/Documentation/scheduler/sched-deadline.txt +++ b/Documentation/scheduler/sched-deadline.txt @@ -169,8 +169,8 @@ CONTENTS of all the tasks executing on a CPU if and only if the total utilisation of the tasks running on such a CPU is smaller or equal than 1. If D_i != P_i for some task, then it is possible to define the density of - a task as C_i/min{D_i,T_i}, and EDF is able to respect all the deadlines - of all the tasks running on a CPU if the sum sum_i C_i/min{D_i,T_i} of the + a task as C_i/min{D_i,P_i}, and EDF is able to respect all the deadlines + of all the tasks running on a CPU if the sum sum_i C_i/min{D_i,P_i} of the densities of the tasks running on such a CPU is smaller or equal than 1 (notice that this condition is only sufficient, and not necessary).
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