linux.git/Documentation/scheduler, branch v4.17

sched/deadline: Fix the description of runtime accounting in the documentation

2017-11-16T08:00:35+00:00

Signed-off-by: Claudio Scordino 
Signed-off-by: Luca Abeni 
Acked-by: Daniel Bristot de Oliveira 
Acked-by: Peter Zijlstra 
Cc: Jonathan Corbet 
Cc: Linus Torvalds 
Cc: Mathieu Poirier 
Cc: Thomas Gleixner 
Cc: Tommaso Cucinotta 
Cc: linux-doc@vger.kernel.org
Link: http://lkml.kernel.org/r/1510658366-28995-1-git-send-email-claudio@evidence.eu.com
Signed-off-by: Ingo Molnar

sched/deadline: Add documentation about GRUB reclaiming

2017-06-08T08:31:56+00:00

This patch adds the documentation about the GRUB reclaiming algorithm,
adding a few details discussed in list.

Signed-off-by: Claudio Scordino 
Signed-off-by: Luca Abeni 
Signed-off-by: Peter Zijlstra (Intel) 
Cc: Daniel Bristot de Oliveira 
Cc: Joel Fernandes 
Cc: Juri Lelli 
Cc: Linus Torvalds 
Cc: Mathieu Poirier 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Steven Rostedt 
Cc: Thomas Gleixner 
Cc: Tommaso Cucinotta 
Link: http://lkml.kernel.org/r/1495138417-6203-11-git-send-email-luca.abeni@santannapisa.it
Signed-off-by: Ingo Molnar

sched/Documentation: Add 'sched-pelt' tool

2017-04-14T08:26:35+00:00

Add a user-space program to compute/generate the PELT constants.

The kernel/sched/sched-pelt.h header will contain the output of
this program.

Signed-off-by: Yuyang Du 
Signed-off-by: Peter Zijlstra (Intel) 
Cc: Linus Torvalds 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: bsegall@google.com
Cc: dietmar.eggemann@arm.com
Cc: matt@codeblueprint.co.uk
Cc: morten.rasmussen@arm.com
Cc: pjt@google.com
Cc: umgwanakikbuti@gmail.com
Cc: vincent.guittot@linaro.org
Link: http://lkml.kernel.org/r/1486935863-25251-2-git-send-email-yuyang.du@intel.com
Signed-off-by: Ingo Molnar

sched/Documentation/sched-rt-group: Fix incorrect example

2017-01-22T09:34:17+00:00

I feel that the example given in the document to show the possibility
of task starvation of configurable period is wrong.

The example says group A and B both have 50% bandwidth, and a while (1)
loop in A will run for the full period of B and can starve B's tasks.

So I think the runtime of group A should be 50000us, then the period and
runtime of group B should be 50000us and 25000us.

Signed-off-by: Zhou Chengming 
Cc: Linus Torvalds 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: corbet@lwn.net
Cc: iamyooon@gmail.com
Cc: linux-doc@vger.kernel.org
Cc: lizefan@huawei.com
Link: http://lkml.kernel.org/r/1485069755-44287-1-git-send-email-zhouchengming1@huawei.com
Signed-off-by: Ingo Molnar

sched/deadline: Show leftover runtime and abs deadline in /proc/*/sched

2017-01-14T10:30:00+00:00

This patch allows for reading the current (leftover) runtime and
absolute deadline of a SCHED_DEADLINE task through /proc/*/sched
(entries dl.runtime and dl.deadline), while debugging/testing.

Signed-off-by: Tommaso Cucinotta 
Signed-off-by: Peter Zijlstra (Intel) 
Reviewed-by: Juri Lelli 
Reviewed-by: Luca Abeni 
Acked-by: Daniel Bistrot de Oliveira 
Cc: Juri Lelli 
Cc: Linus Torvalds 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Link: http://lkml.kernel.org/r/1477473437-10346-2-git-send-email-tommaso.cucinotta@sssup.it
Signed-off-by: Ingo Molnar

docs/completion.txt: drop dangling reference to completions-design.txt

2016-11-16T23:27:50+00:00

Per the original author, the proposed document was never deemed
necessary, and the important bits got merged into completion.txt. Let's
just stop confusing readers by pointing at a nonexistent doc.

Signed-off-by: Brian Norris 
Signed-off-by: Jonathan Corbet

sched/deadline: Document behavior of sched_yield()

2016-09-10T09:17:41+00:00

This is a documentation only patch, explaining the
behavior of sched_yield() when a SCHED_DEADLINE
task calls it (give up remaining runtime and be
throttled until next period begins).

Signed-off-by: Tommaso Cucinotta 
Signed-off-by: Peter Zijlstra (Intel) 
Reviewed-by: Juri Lelli 
Reviewed-by: Luca Abeni 
Reviewed-by: Daniel Bristot de Oliveira 
Cc: Juri Lelli 
Cc: Linus Torvalds 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: linux-dl@retis.sssup.it
Link: http://lkml.kernel.org/r/1473443117-11794-2-git-send-email-tommaso.cucinotta@sssup.it
Signed-off-by: Ingo Molnar

Documenation: update cgroup's document path

2016-08-03T21:43:58+00:00

cgroup's document path is changed to "cgroup-v1". update it.

Signed-off-by: seokhoon.yoon 
Signed-off-by: Jonathan Corbet

sched/dl/Documentation: Split Section 3

2015-05-19T06:39:21+00:00

Introduce 4 subsections to make Section 3 more readable.

Signed-off-by: Luca Abeni 
Signed-off-by: Peter Zijlstra (Intel) 
Cc: Linus Torvalds 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: henrik@austad.us
Cc: juri.lelli@gmail.com
Cc: raistlin@linux.it
Link: http://lkml.kernel.org/r/1431954032-16473-10-git-send-email-luca.abeni@unitn.it
Signed-off-by: Ingo Molnar

sched/dl/Documentation: Clarify the relationship between tasks' deadlines and absolute scheduling deadlines

2015-05-19T06:39:21+00:00

Clarify what is the relationship between tasks' parameters and scheduling
parameters, explaining how to set the scheduling parameters so that all the
absolute deadlines of a task are respected.

Signed-off-by: Luca Abeni 
Signed-off-by: Peter Zijlstra (Intel) 
Cc: Linus Torvalds 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: henrik@austad.us
Cc: juri.lelli@gmail.com
Cc: raistlin@linux.it
Link: http://lkml.kernel.org/r/1431954032-16473-9-git-send-email-luca.abeni@unitn.it
Signed-off-by: Ingo Molnar