From: Zhiqiang Zhang <zhangzhiqiang.zhang@huawei.com>
To: <luca.abeni@unitn.it>, <juri.lelli@arm.com>, <henrik@austad.us>,
<linux-kernel@vger.kernel.org>
Cc: <torvalds@linux-foundation.org>
Subject: [PATCH] Documentation/scheduler/sched-deadline.txt: correct definition of density as C_i/min{D_i,P_i}
Date: Fri, 3 Apr 2015 16:18:33 +0800 [thread overview]
Message-ID: <1428049113-62546-1-git-send-email-zhangzhiqiang.zhang@huawei.com> (raw)
>From the contex,the definition of the destiny of a task
C_i/min{D_i,T_i},where T_i is not referred before, should be
substituted by C_i/min{D_i,P_i}.
----------------------------------------
Signed-off-by: Zhiqiang Zhang <zhangzhiqiang.zhang@huawei.com>
---
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).
--
1.9.0
next reply other threads:[~2015-04-03 8:22 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-03 8:18 Zhiqiang Zhang [this message]
2015-04-03 10:52 ` [PATCH] Documentation/scheduler/sched-deadline.txt: correct definition of density as C_i/min{D_i,P_i} Luca Abeni
2015-04-08 9:31 ` Juri Lelli
2015-04-08 10:34 ` Luca Abeni
2015-04-03 17:57 ` Henrik Austad
2015-04-03 19:47 ` Luca Abeni
2015-04-07 9:48 ` Luca Abeni
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