On 12/12/2012 11:42 PM, Rafael J. Wysocki wrote:
> On Wednesday, December 12, 2012 09:00:53 PM Daniel Lezcano wrote:
>> On 12/12/2012 07:50 PM, Julius Werner wrote:
>>> Thanks again for making this happen, Daniel. I like this version,
>>> except for the small nitpick that I still think it would mak
Hi,
The Powertop Linaro-2012.12 release is available[1] based on upstream
v2.2 version. The upstream v2.2 minor release mainly includes bug fixes
and new report generator facility. Detailed notes available at [2].
Powertop Linaro-2012.12 release highlights
- Bug fix to display freq stats when cpu
On 12/13/2012 10:17 AM, Alex Shi wrote:
> On 12/12/2012 09:31 PM, Vincent Guittot wrote:
>> During the creation of sched_domain, we define a pack buddy CPU for each CPU
>> when one is available. We want to pack at all levels where a group of CPU can
>> be power gated independently from others.
>> O
On 12/12/2012 09:31 PM, Vincent Guittot wrote:
> This new flag SD_SHARE_POWERDOMAIN is used to reflect whether groups of CPU in
> a sched_domain level can or not reach a different power state. If clusters can
> be power gated independently, as an example, the flag should be cleared at CPU
> level.
On 12/12/2012 09:31 PM, Vincent Guittot wrote:
> During the creation of sched_domain, we define a pack buddy CPU for each CPU
> when one is available. We want to pack at all levels where a group of CPU can
> be power gated independently from others.
> On a system that can't power gate a group of CP
On Wednesday, December 12, 2012 09:00:53 PM Daniel Lezcano wrote:
> On 12/12/2012 07:50 PM, Julius Werner wrote:
> > Thanks again for making this happen, Daniel. I like this version,
> > except for the small nitpick that I still think it would make sense to
> > also turn the loop in menu.c around.
Thanks again for making this happen, Daniel. I like this version,
except for the small nitpick that I still think it would make sense to
also turn the loop in menu.c around. How about something like this:
for (i = drv->state_count - 1; i >= CPUIDLE_DRIVER_STATE_START; i++) {
Greetings,
The ll tree has been updated to use llct-20121211.0 as the base.
It still has just the ARM LT topic; waiting for the v3.7 based topic
from Samsung LT.
Also the hack by Bero to make perf to build on android has been removed:
will see if it break the perf build on ubuntu (see the
Linu
On 12/12/2012 07:50 PM, Julius Werner wrote:
> Thanks again for making this happen, Daniel. I like this version,
> except for the small nitpick that I still think it would make sense to
> also turn the loop in menu.c around. How about something like this:
>
>for (i = drv->state_count - 1;
On 12/03/2012 10:07 PM, Rajagopal Venkat wrote:
Powertop fails to display frequency stats when cpuidle subsystem
is not enabled. Fix it.
Signed-off-by: Rajagopal Venkat
---
src/cpu/cpu.h | 7 ++-
src/cpu/cpu_linux.cpp | 36 +++-
2 files changed,
This patch follows the discussion about reinitializing the power usage
when a C-state is added/removed.
https://lkml.org/lkml/2012/10/16/518
We realized the power usage field is never filled and when it is
filled for tegra, the power_specified flag is not set making all these
values to be resett
This reverts commit f4e26b120b9de84cb627bc7361ba43cfdc51341f
Signed-off-by: Vincent Guittot
---
include/linux/sched.h |8 +---
kernel/sched/core.c |7 +--
kernel/sched/fair.c |3 +--
kernel/sched/sched.h |9 +
4 files changed, 4 insertions(+), 23 deletions(-)
During the creation of sched_domain, we define a pack buddy CPU for each CPU
when one is available. We want to pack at all levels where a group of CPU can
be power gated independently from others.
On a system that can't power gate a group of CPUs independently, the flag is
set at all sched_domain l
This new flag SD_SHARE_POWERDOMAIN is used to reflect whether groups of CPU in
a sched_domain level can or not reach a different power state. If clusters can
be power gated independently, as an example, the flag should be cleared at CPU
level. This information is used to decide if it's worth packin
Hi,
This patchset takes advantage of the new per-task load tracking that is
available in the kernel for packing the small tasks in as few as possible
CPU/Cluster/Core. The main goal of packing small tasks is to reduce the power
consumption by minimizing the number of power domain that are enabl
If a CPU accesses the runnable_avg_sum and runnable_avg_period fields of its
buddy CPU while the latter updates it, it can get the new version of a field
and the old version of the other one. This can generate erroneous decisions.
We don't want to use a lock mechanism for ensuring the coherency bec
The ARM platforms take advantage of packing small tasks on few cores.
This is true even when the cores of a cluster can't be power gated
independantly. So we clear SD_SHARE_POWERDOMAIN at MC and CPU level.
Signed-off-by: Vincent Guittot
---
arch/arm/kernel/topology.c |9 +
1 file cha
Look for an idle CPU close to the pack buddy CPU whenever possible.
The goal is to prevent the wake up of a CPU which doesn't share the power
domain of the pack buddy CPU.
Signed-off-by: Vincent Guittot
---
kernel/sched/fair.c | 18 ++
1 file changed, 18 insertions(+)
diff --g
Sorry for offtopic,
http://www.linaro.org/linaro-blog/2012/12/07/linaro-wants-you-career-opportunities-in-the-uk
I think you can talk with this people:
https://c9.io/site/blog/2012/11/the-terminal/
I think they are also interested in some common subjects such as lava.
On Mon, Dec 10, 2012 at 8:01
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