schedstats for -deadline tasks.
sched: add latency tracing for -deadline tasks.
sched: drafted deadline inheritance logic.
sched: add bandwidth management for sched_dl.
sched: add sched_dl documentation.
Harald Gustafsson (1):
sched: add period support for -deadline tasks.
Juri Lelli (3
From: Peter Zijlstra a.p.zijls...@chello.nl
Grow rudimentary u128 support without relying on gcc/libgcc.
Cc: Ingo Molnar mi...@kernel.org
Cc: Thomas Gleixner t...@linutronix.de
Cc: Andrew Morton a...@linux-foundation.org
Cc: Linus Torvalds torva...@linux-foundation.org
Signed-off-by: Peter
From: Peter Zijlstra a.p.zijls...@chello.nl
Enable __int128 usage when available, if not, provide asm versions of
mul_u64_u64 and add_u128.
Cc: Ingo Molnar mi...@kernel.org
Cc: Thomas Gleixner t...@linutronix.de
Cc: H. Peter Anvin h...@zytor.com
Cc: Andrew Morton a...@linux-foundation.org
Cc:
some cleanup actions.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h |1 +
kernel/sched/core.c |3 +++
2 files changed, 4 insertions(+)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 0dd42a0
to their
already existing counterpart. Future patches that implement scheduling
policies able to exploit the new data structure must also take care of
modifying the *2() calls accordingly with their own purposes.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
the interactions between sched/dl
and the other existing scheduling classes.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Michael Trimarchi mich...@amarulasolutions.com
Signed-off-by: Fabio Checconi fa...@gandalf.sssup.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
From: Dario Faggioli raist...@linux.it
Make the core scheduler and load balancer aware of the load
produced by -deadline tasks, by updating the moving average
like for sched_rt.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
kernel/sched/dl.c
From: Harald Gustafsson harald.gustafs...@ericsson.com
Make it possible to specify a period (different or equal than
deadline) for -deadline tasks.
Signed-off-by: Harald Gustafsson harald.gustafs...@ericsson.com
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
kernel/trace/trace_sched_wakeup.c | 44 +
kernel/trace/trace_selftest.c | 28 +--
2 files changed, 57 insertions(+), 15 deletions(-)
diff --git a/kernel/trace/trace_sched_wakeup.c
b
From: Dario Faggioli raist...@linux.it
Add some typical sched-debug output to dl_rq(s) and some
schedstats to -deadline tasks.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h | 13 +
kernel/sched/debug.c
of a task's pi-waiters and the list of tasks blocked on
a pi-lock.
Signed-off-by: Peter Zijlstra pet...@infradead.org
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/init_task.h | 10 +++
include/linux/rtmutex.h | 18 ++
include
! :-)
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h |9 -
kernel/fork.c |1 +
kernel/rtmutex.c | 13 +--
kernel/sched/core.c | 34 +++---
kernel/sched/dl.c | 91
as well.
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h |1 -
kernel/sched/core.c | 282 +++--
kernel/sched/dl.c |3 +-
kernel/sched/sched.h | 22 ++--
kernel/sysctl.c |7 --
5 files changed, 143
://retis.sssup.it/~jlelli/papers/Ospert11Lelli.pdf
[2] http://www.spinics.net/lists/linux-rt-users/msg06778.html
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
kernel/sched/Makefile |2 +-
kernel/sched/core.c |3 +
kernel/sched/cpudl.c | 208
From: Dario Faggioli raist...@linux.it
Add in Documentation/scheduler/ some hints about the design
choices, the usage and the future possible developments of the
sched_dl scheduling class and of the SCHED_DEADLINE policy.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli
-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h |8 +
kernel/sched/core.c | 413 ++---
kernel/sched/dl.c | 45 +-
kernel/sched/sched.h | 67 +++-
kernel/sysctl.c | 14 ++
5 files changed, 518 insertions(+), 29
with the latest deadline among the M executing ones.
In order to facilitate these decisions, per-runqueue caching of the
deadlines of the currently running and of the first ready task is used.
Queued but not running tasks are also parked in another rb-tree to
speed-up pushes.
Signed-off-by: Juri Lelli
On 10/24/2012 03:27 PM, H. Peter Anvin wrote:
On 10/24/2012 02:53 PM, Juri Lelli wrote:
diff --git a/arch/x86/include/asm/math128.h b/arch/x86/include/asm/math128.h
new file mode 100644
index 000..c0e2a6c
--- /dev/null
+++ b/arch/x86/include/asm/math128.h
@@ -0,0 +1,39 @@
+#ifndef
Adding H. Peter Anvin to the Cc list.
Best,
- Juri
On 10/24/2012 02:53 PM, Juri Lelli wrote:
From: Peter Zijlstra a.p.zijls...@chello.nl
Grow rudimentary u128 support without relying on gcc/libgcc.
Cc: Ingo Molnar mi...@kernel.org
Cc: Thomas Gleixner t...@linutronix.de
Cc: Andrew Morton
On 10/25/2012 12:18 AM, Ingo Molnar wrote:
* Juri Lelli juri.le...@gmail.com wrote:
kernel/sched/dl.c | 1650
I've got a stupid nit here: please make that deadline.c. Same
for cpudl.c.
Sure, no problems with that.
Thanks and Regards
Hi,
first of all thanks to everybody for all this comments!
On 10/26/2012 05:56 AM, Peter Zijlstra wrote:
On Fri, 2012-10-26 at 12:44 +0200, Peter Zijlstra wrote:
We can still have the user space interface handing in the information
in nsec resolution, but it's reasonable to scale it down to
On 10/26/2012 11:28 AM, Steven Rostedt wrote:
On Fri, 2012-10-26 at 11:12 -0700, Juri Lelli wrote:
- scale down (right by 10) incoming parameters as to do internal
math with ~1us resolution (and scale up outgoing params)
Would scaling down by 9 be sufficient? That way the resolution
some cleanup actions.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h |1 +
kernel/sched/core.c |3 +++
2 files changed, 4 insertions(+)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index d211247
with the latest deadline among the M executing ones.
In order to facilitate these decisions, per-runqueue caching of the
deadlines of the currently running and of the first ready task is used.
Queued but not running tasks are also parked in another rb-tree to
speed-up pushes.
Signed-off-by: Juri Lelli
as well.
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h |1 -
kernel/sched/core.c | 282 ++-
kernel/sched/deadline.c |3 +-
kernel/sched/sched.h| 22 ++--
kernel/sysctl.c |7 --
5 files changed
From: Dario Faggioli raist...@linux.it
Add in Documentation/scheduler/ some hints about the design
choices, the usage and the future possible developments of the
sched_dl scheduling class and of the SCHED_DEADLINE policy.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli
to their
already existing counterpart. Future patches that implement scheduling
policies able to exploit the new data structure must also take care of
modifying the *2() calls accordingly with their own purposes.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
From: Harald Gustafsson harald.gustafs...@ericsson.com
Make it possible to specify a period (different or equal than
deadline) for -deadline tasks.
Signed-off-by: Harald Gustafsson harald.gustafs...@ericsson.com
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le
From: Dario Faggioli raist...@linux.it
Add some typical sched-debug output to dl_rq(s) and some
schedstats to -deadline tasks.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h | 13 +
kernel/sched/deadline.c
! :-)
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h |9 -
kernel/fork.c |1 +
kernel/rtmutex.c| 13 +--
kernel/sched/core.c | 34 +++---
kernel/sched/deadline.c | 91
://retis.sssup.it/~jlelli/papers/Ospert11Lelli.pdf
[2] http://www.spinics.net/lists/linux-rt-users/msg06778.html
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
kernel/sched/Makefile |2 +-
kernel/sched/core.c|3 +
kernel/sched/cpudeadline.c | 208
-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h |8 +
kernel/sched/core.c | 431 ---
kernel/sched/deadline.c | 50 +-
kernel/sched/sched.h| 74 +++-
kernel/sysctl.c | 14 ++
5 files changed, 543
of a task's pi-waiters and the list of tasks blocked on
a pi-lock.
Signed-off-by: Peter Zijlstra pet...@infradead.org
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/init_task.h | 10 +++
include/linux/rtmutex.h | 18 ++
include
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
kernel/trace/trace_sched_wakeup.c | 44 +
kernel/trace/trace_selftest.c | 28 +--
2 files changed, 57 insertions(+), 15 deletions(-)
diff --git a/kernel/trace/trace_sched_wakeup.c
b
From: Dario Faggioli raist...@linux.it
Make the core scheduler and load balancer aware of the load
produced by -deadline tasks, by updating the moving average
like for sched_rt.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
kernel/sched
the interactions between sched/dl
and the other existing scheduling classes.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Michael Trimarchi mich...@amarulasolutions.com
Signed-off-by: Fabio Checconi fchecc...@gmail.com
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
arch/arm
the
purpose of this discussion.
Best Regards,
- Juri Lelli
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To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
tasks.
Juri Lelli (3):
sched: SCHED_DEADLINE SMP-related data structures logic.
sched: make dl_bw a sub-quota of rt_bw
sched: speed up -dl pushes with a push-heap.
Peter Zijlstra (1):
rtmutex: turn the plist into an rb-tree.
Documentation/scheduler/sched-deadline.txt | 196
arch/arm
to their
already existing counterpart. Future patches that implement scheduling
policies able to exploit the new data structure must also take care of
modifying the *2() calls accordingly with their own purposes.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
with the latest deadline among the M executing ones.
In order to facilitate these decisions, per-runqueue caching of the
deadlines of the currently running and of the first ready task is used.
Queued but not running tasks are also parked in another rb-tree to
speed-up pushes.
Signed-off-by: Juri Lelli
as well.
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched/deadline.h |2 +
include/linux/sched/sysctl.h |2 -
kernel/sched/core.c| 322
kernel/sched/deadline.c| 13 +-
kernel/sched/sched.h
://retis.sssup.it/~jlelli/papers/Ospert11Lelli.pdf
[2] http://www.spinics.net/lists/linux-rt-users/msg06778.html
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
kernel/sched/Makefile |2 +-
kernel/sched/core.c|3 +
kernel/sched/cpudeadline.c | 216
of a task's pi-waiters and the list of tasks blocked on
a pi-lock.
Signed-off-by: Peter Zijlstra pet...@infradead.org
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/init_task.h | 10 +++
include/linux/rtmutex.h | 18 ++
include
-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h|1 +
include/linux/sched/sysctl.h | 13 ++
kernel/sched/core.c | 431 +++---
kernel/sched/deadline.c | 50 -
kernel/sched/sched.h | 74 +++-
kernel
! :-)
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h |8 +++-
include/linux/sched/rt.h |1 +
kernel/fork.c |1 +
kernel/rtmutex.c | 14 +-
kernel/sched/core.c
, if tasks are missing their deadlines
and the entity of such anomalies).
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h | 13 +
kernel/sched/deadline.c | 47
the interactions between sched/dl
and the other existing scheduling classes.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Michael Trimarchi mich...@amarulasolutions.com
Signed-off-by: Fabio Checconi fchecc...@gmail.com
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
arch/arm
some cleanup actions.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
kernel/sched/core.c |3 +++
kernel/sched/sched.h |1 +
2 files changed, 4 insertions(+)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 5ac63c9..850a02c
-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h |1 +
kernel/sched/core.c | 15 ---
kernel/sched/deadline.c | 10 +++---
3 files changed, 20 insertions(+), 6 deletions(-)
diff --git a/include/linux
From: Dario Faggioli raist...@linux.it
Make the core scheduler and load balancer aware of the load
produced by -deadline tasks, by updating the moving average
like for sched_rt.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
kernel/sched
From: Dario Faggioli raist...@linux.it
Add in Documentation/scheduler/ some hints about the design
choices, the usage and the future possible developments of the
sched_dl scheduling class and of the SCHED_DEADLINE policy.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
kernel/trace/trace_sched_wakeup.c | 44 +
kernel/trace/trace_selftest.c | 28 +--
2 files changed, 57 insertions(+), 15 deletions(-)
diff --git a/kernel/trace/trace_sched_wakeup.c
b
Hi,
On 11/07/2013 05:44 PM, Randy Dunlap wrote:
Hi,
Just a few minor edits...
Thanks!
Best,
- Juri
On 11/07/13 05:47, Juri Lelli wrote:
From: Dario Faggioli raist...@linux.it
Add in Documentation/scheduler/ some hints about the design
choices, the usage and the future possible
On 11/21/2013 06:52 PM, Steven Rostedt wrote:
The conversion of the rt_mutex from using plist to rbtree eliminated
the use of the waiter-list_entry.prio, and instead used directly the
waiter-task-prio.
The problem with this is that the priority inheritance code relies on
the prio of the
forever waiting for the write side to complete.
And this patch fixes it, thanks!
Cc: John Stultz john.stu...@linaro.org
Cc: Mel Gorman mgor...@suse.de
Reported-by: Juri Lelli juri.le...@gmail.com
Signed-off-by: Peter Zijlstra pet...@infradead.org
Tested-by: Juri Lelli juri.le...@gmail.com
On 11/20/2013 10:33 PM, Steven Rostedt wrote:
On Thu, 7 Nov 2013 14:43:42 +0100
Juri Lelli juri.le...@gmail.com wrote:
+/*
+ * Semantic is like this:
+ * - wakeup tracer handles all tasks in the system, independently
+ *from their scheduling class
On 11/27/2013 03:16 PM, Steven Rostedt wrote:
On Wed, 27 Nov 2013 14:43:45 +0100
Juri Lelli juri.le...@gmail.com wrote:
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index f76f8d6..ad94604 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace
schedtool still works since he doesn't know about size...
Comments?
Thanks,
- Juri
Author: Juri Lelli juri.le...@gmail.com
Date: Thu Nov 28 11:07:47 2013 +0100
fixup: ABI changed, builds and runs
diff --git a/arch/arm/include/uapi/asm/unistd.h
b/arch/arm/include/uapi/asm/unistd.h
index
tasks.
Juri Lelli (3):
sched: SCHED_DEADLINE SMP-related data structures logic.
sched: make dl_bw a sub-quota of rt_bw
sched: speed up -dl pushes with a push-heap.
Peter Zijlstra (1):
rtmutex: turn the plist into an rb-tree.
Documentation/scheduler/sched-deadline.txt | 196
arch/arm
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
kernel/trace/trace_sched_wakeup.c | 44 +
kernel/trace/trace_selftest.c | 28 +--
2 files changed, 57 insertions(+), 15 deletions(-)
diff --git a/kernel/trace/trace_sched_wakeup.c
b
From: Dario Faggioli raist...@linux.it
Add in Documentation/scheduler/ some hints about the design
choices, the usage and the future possible developments of the
sched_dl scheduling class and of the SCHED_DEADLINE policy.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli
From: Harald Gustafsson harald.gustafs...@ericsson.com
Make it possible to specify a period (different or equal than
deadline) for -deadline tasks.
Signed-off-by: Harald Gustafsson harald.gustafs...@ericsson.com
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le
From: Dario Faggioli raist...@linux.it
Make the core scheduler and load balancer aware of the load
produced by -deadline tasks, by updating the moving average
like for sched_rt.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
kernel/sched
://retis.sssup.it/~jlelli/papers/Ospert11Lelli.pdf
[2] http://www.spinics.net/lists/linux-rt-users/msg06778.html
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
kernel/sched/Makefile |2 +-
kernel/sched/core.c|3 +
kernel/sched/cpudeadline.c | 216
some cleanup actions.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
kernel/sched/core.c |3 +++
kernel/sched/sched.h |1 +
2 files changed, 4 insertions(+)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 5ac63c9..850a02c
as well.
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched/sysctl.h |2 -
kernel/sched/core.c | 285 --
kernel/sched/deadline.c |5 +-
kernel/sched/sched.h | 24 ++--
kernel/sysctl.c |7
From: Dario Faggioli raist...@linux.it
Add some typical sched-debug output to dl_rq(s) and some
schedstats to -deadline tasks.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h | 13 +
kernel/sched/deadline.c
to their
already existing counterpart. Future patches that implement scheduling
policies able to exploit the new data structure must also take care of
modifying the *2() calls accordingly with their own purposes.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
the interactions between sched/dl
and the other existing scheduling classes.
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Michael Trimarchi mich...@amarulasolutions.com
Signed-off-by: Fabio Checconi fchecc...@gmail.com
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
arch/arm
! :-)
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h|8 +++-
include/linux/sched/rt.h |1 +
kernel/fork.c|1 +
kernel/rtmutex.c | 13 ++-
kernel/sched/core.c | 36
with the latest deadline among the M executing ones.
In order to facilitate these decisions, per-runqueue caching of the
deadlines of the currently running and of the first ready task is used.
Queued but not running tasks are also parked in another rb-tree to
speed-up pushes.
Signed-off-by: Juri Lelli
-by: Juri Lelli juri.le...@gmail.com
---
include/linux/sched.h |1 +
include/linux/sched/sysctl.h | 13 ++
kernel/rtmutex.c |1 +
kernel/sched/core.c | 431 ++---
kernel/sched/deadline.c | 50
of a task's pi-waiters and the list of tasks blocked on
a pi-lock.
Signed-off-by: Peter Zijlstra pet...@infradead.org
Signed-off-by: Dario Faggioli raist...@linux.it
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
include/linux/init_task.h | 10 +++
include/linux/rtmutex.h | 18 ++
include
Ok,
I forgot a space after the last Cc with git send-mail, sorry about that. Here
the Cc list is right.
Thanks,
- Juri
On 10/14/2013 12:43 PM, Juri Lelli wrote:
Hello everyone,
here we go with a new version of the SCHED_DEADLINE patchset (v8). I know that
it has been a while since I
On 10/14/2013 01:10 PM, Peter Zijlstra wrote:
On Mon, Oct 14, 2013 at 12:43:35PM +0200, Juri Lelli wrote:
+struct sched_dl_entity {
+struct rb_node rb_node;
+int nr_cpus_allowed;
+
Please see:
29baa7478ba4 sched: Move nr_cpus_allowed out of 'struct sched_rt_entity'
Yes, I
On 10/14/2013 01:24 PM, Peter Zijlstra wrote:
On Mon, Oct 14, 2013 at 12:43:35PM +0200, Juri Lelli wrote:
+/*
+ * We are being explicitly informed that a new instance is starting,
+ * and this means that:
+ * - the absolute deadline of the entity has to be placed at
+ *current time
On 10/14/2013 01:33 PM, Peter Zijlstra wrote:
On Mon, Oct 14, 2013 at 12:43:35PM +0200, Juri Lelli wrote:
+static void replenish_dl_entity(struct sched_dl_entity *dl_se)
+{
+struct dl_rq *dl_rq = dl_rq_of_se(dl_se);
+struct rq *rq = rq_of_dl_rq(dl_rq);
+
+/*
+ * We keep
On 10/14/2013 01:44 PM, Peter Zijlstra wrote:
On Mon, Oct 14, 2013 at 12:43:35PM +0200, Juri Lelli wrote:
+static void update_curr_dl(struct rq *rq)
+{
+struct task_struct *curr = rq-curr;
+struct sched_dl_entity *dl_se = curr-dl;
+u64 delta_exec;
+
+if (!dl_task(curr
On 10/14/2013 01:49 PM, Peter Zijlstra wrote:
On Mon, Oct 14, 2013 at 12:43:35PM +0200, Juri Lelli wrote:
+/*
+ * Yield task semantic for -deadline tasks is:
+ *
+ * get off from the CPU until our next instance, with
+ * a new runtime.
+ */
Could you amend that comment with a reason
On 10/14/2013 07:34 PM, Peter Zijlstra wrote:
On Mon, Oct 14, 2013 at 06:58:51PM +0200, Juri Lelli wrote:
On 10/14/2013 01:44 PM, Peter Zijlstra wrote:
On Mon, Oct 14, 2013 at 12:43:35PM +0200, Juri Lelli wrote:
We discussed on this point in the past...
Ah, completely forgot about
On 10/14/2013 01:51 PM, Peter Zijlstra wrote:
On Mon, Oct 14, 2013 at 12:43:35PM +0200, Juri Lelli wrote:
+static void set_cpus_allowed_dl(struct task_struct *p,
+const struct cpumask *new_mask)
+{
+int weight = cpumask_weight(new_mask);
+
+BUG_ON
On 10/14/2013 02:07 PM, Peter Zijlstra wrote:
On Mon, Oct 14, 2013 at 12:43:38PM +0200, Juri Lelli wrote:
From: Harald Gustafsson harald.gustafs...@ericsson.com
Make it possible to specify a period (different or equal than
deadline) for -deadline tasks.
Could we add a little blurb here
On 10/14/2013 02:08 PM, Peter Zijlstra wrote:
On Mon, Oct 14, 2013 at 12:43:39PM +0200, Juri Lelli wrote:
From: Dario Faggioli raist...@linux.it
Add some typical sched-debug output to dl_rq(s) and some
schedstats to -deadline tasks.
Could you perhaps add a bit to the changelog explaining
On 10/14/2013 02:03 PM, Peter Zijlstra wrote:
On Mon, Oct 14, 2013 at 12:43:36PM +0200, Juri Lelli wrote:
+static inline void dl_set_overload(struct rq *rq)
+{
+if (!rq-online)
+return;
+
+cpumask_set_cpu(rq-cpu, rq-rd-dlo_mask);
+/*
+ * Must be visible before
On 10/14/2013 04:06 PM, Ingo Molnar wrote:
* Juri Lelli juri.le...@gmail.com wrote:
+#ifdef CONFIG_SMP
+struct dl_bw *dl_b = cpu_rq(i)-rd-dl_bw;
+#else
+struct dl_bw *dl_b = cpu_rq(i)-dl.dl_bw;
+#endif
+#ifdef CONFIG_SMP
+struct dl_bw *dl_b
On 10/15/2013 12:26 PM, Peter Zijlstra wrote:
On Tue, Oct 15, 2013 at 12:00:20PM +0200, Juri Lelli wrote:
On 10/14/2013 04:06 PM, Ingo Molnar wrote:
* Juri Lelli juri.le...@gmail.com wrote:
+#ifdef CONFIG_SMP
+ struct dl_bw *dl_b = cpu_rq(i)-rd-dl_bw;
+#else
+ struct
On 10/15/2013 12:35 PM, Peter Zijlstra wrote:
On Tue, Oct 15, 2013 at 11:36:17AM +0200, Juri Lelli wrote:
On 10/14/2013 02:03 PM, Peter Zijlstra wrote:
On Mon, Oct 14, 2013 at 12:43:36PM +0200, Juri Lelli wrote:
+static inline void dl_set_overload(struct rq *rq)
+{
+ if (!rq-online
On 11/12/2013 06:19 PM, Steven Rostedt wrote:
On Thu, 7 Nov 2013 14:43:35 +0100
Juri Lelli juri.le...@gmail.com wrote:
From: Dario Faggioli raist...@linux.it
Add a new function to the scheduling class interface. It is called
at the end of a context switch, if the prev task is in TASK_DEAD
On 11/12/2013 06:23 PM, Steven Rostedt wrote:
On Thu, 7 Nov 2013 14:43:36 +0100
Juri Lelli juri.le...@gmail.com wrote:
+ * This is reflected by the actual fields of the sched_param2 structure:
+ *
+ * @sched_priority task's priority (might still be useful)
+ * @sched_deadline
On 11/12/2013 06:32 PM, Steven Rostedt wrote:
On Thu, 7 Nov 2013 14:43:36 +0100
Juri Lelli juri.le...@gmail.com wrote:
+static int
+do_sched_setscheduler2(pid_t pid, int policy,
+ struct sched_param2 __user *param2)
+{
+struct sched_param2 lparam2
On 11/13/2013 03:31 AM, Steven Rostedt wrote:
On Thu, 7 Nov 2013 14:43:37 +0100
Juri Lelli juri.le...@gmail.com wrote:
From: Dario Faggioli raist...@linux.it
--- /dev/null
+++ b/include/linux/sched/deadline.h
@@ -0,0 +1,24 @@
+#ifndef _SCHED_DEADLINE_H
+#define _SCHED_DEADLINE_H
On 11/30/2013 03:06 PM, Ingo Molnar wrote:
* Peter Zijlstra pet...@infradead.org wrote:
On Thu, Nov 28, 2013 at 12:14:03PM +0100, Juri Lelli wrote:
+SYSCALL_DEFINE2(sched_getattr, pid_t, pid, struct sched_attr __user *,
attr)
{
- struct sched_param2 lp;
+ struct sched_attr lp
On 12/03/2013 05:41 PM, Steven Rostedt wrote:
On Tue, 03 Dec 2013 17:13:44 +0100
Juri Lelli juri.le...@gmail.com wrote:
On 11/30/2013 03:06 PM, Ingo Molnar wrote:
* Peter Zijlstra pet...@infradead.org wrote:
On Thu, Nov 28, 2013 at 12:14:03PM +0100, Juri Lelli wrote:
+SYSCALL_DEFINE2
Commit 82b9580 (sched/deadline: Test for CPU's presence explicitly)
changed how we check if a CPU returned by cpudeadline machinery is
valid. But, we don't want to call cpu_present() if best_cpu is
equal to -1. So, switch the order of tests inside WARN_ON().
Signed-off-by: Juri Lelli juri.le
On Sat, 22 Feb 2014 04:56:59 +0400
Kirill Tkhai tk...@yandex.ru wrote:
On 21.02.2014 20:36, Juri Lelli wrote:
On Fri, 21 Feb 2014 11:37:15 +0100
Peter Zijlstra pet...@infradead.org wrote:
On Thu, Feb 20, 2014 at 02:16:00AM +0400, Kirill Tkhai wrote:
Since deadline tasks share rt
Destroy rt bandwidth timer when rq has no more RT tasks, even when
CONFIG_RT_GROUP_SCHED is not set.
Signed-off-by: Juri Lelli juri.le...@gmail.com
---
kernel/sched/rt.c | 10 +++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index
On Tue, 25 Feb 2014 19:52:23 +0400
Kirill Tkhai ktk...@parallels.com wrote:
In deadline class we do not have group scheduling.
So, let's remove unnecessary
X = X;
equations.
Thanks!
- Juri
Signed-off-by: Kirill Tkhai ktk...@parallels.com
CC: Juri Lelli juri.le
() as it is.
Regards,
- Juri
From 73bae0ad978db6e75f492eea9adff12ec9d6d2a3 Mon Sep 17 00:00:00 2001
From: Juri Lelli juri.le...@gmail.com
Date: Sat, 1 Mar 2014 16:43:30 +0100
Subject: [PATCH] sched/core: restore __setscheduler() behavior
Commit c365c29 introduced __setscheduler_params(), that is now
Deny the use of SCHED_DEADLINE policy to unprivileged users.
Even if root users can set the policy for normal users, we
don't want the latter to be able to change their parameters
(safest behavior).
Cc: Ingo Molnar mi...@redhat.com
Cc: Peter Zijlstra pet...@infradead.org
Signed-off-by: Juri Lelli
On Thu, 6 Mar 2014 12:58:25 +0100
Peter Zijlstra pet...@infradead.org wrote:
On Wed, Mar 05, 2014 at 11:29:31PM -0500, Steven Rostedt wrote:
I decided to run my tests on linux-next, and my wakeup_rt tracer was
broken. After running a bisect, I found that the problem commit was:
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