On Wed, Sep 13, 2017 at 01:46:51PM -0700, David Rientjes wrote:
> On Mon, 11 Sep 2017, Roman Gushchin wrote:
>
> > diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> > index 15af3da5af02..da2b12ea4667 100644
> > --- a/mm/memcontrol.c
> > +++ b/mm/memcontrol.c
> > @@ -2661,6 +2661,231 @@ static inlin
On Wed, Sep 13, 2017 at 02:29:14PM +0200, Michal Hocko wrote:
> On Mon 11-09-17 13:44:39, David Rientjes wrote:
> > On Mon, 11 Sep 2017, Roman Gushchin wrote:
> >
> > > This patchset makes the OOM killer cgroup-aware.
> > >
> > > v8:
> > > - Do not kill tasks with OOM_SCORE_ADJ -1000
> > > -
On Wed 2017-09-13 14:20:58, David Lin wrote:
> On Wed, Sep 13, 2017 at 1:20 PM, Pavel Machek wrote:
> >
> > Hi!
> >
> > > These patch series add the LED_BRIGHTNESS_FAST flag support for
> > > ledtrig-transient to use hrtimer so that platforms with high-resolution
> > > timer
> > > support can hav
On Wed, Sep 13, 2017 at 1:20 PM, Pavel Machek wrote:
>
> Hi!
>
> > These patch series add the LED_BRIGHTNESS_FAST flag support for
> > ledtrig-transient to use hrtimer so that platforms with high-resolution
> > timer
> > support can have better accuracy in the trigger duration timing. The need
>
On Mon, 11 Sep 2017, Roman Gushchin wrote:
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 15af3da5af02..da2b12ea4667 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -2661,6 +2661,231 @@ static inline bool memcg_has_children(struct
> mem_cgroup *memcg)
> return ret;
>
On Wed, 13 Sep 2017, Michal Hocko wrote:
> > > This patchset makes the OOM killer cgroup-aware.
> > >
> > > v8:
> > > - Do not kill tasks with OOM_SCORE_ADJ -1000
> > > - Make the whole thing opt-in with cgroup mount option control
> > > - Drop oom_priority for further discussions
> >
> >
Hi!
> These patch series add the LED_BRIGHTNESS_FAST flag support for
> ledtrig-transient to use hrtimer so that platforms with high-resolution timer
> support can have better accuracy in the trigger duration timing. The need for
> this support is driven by the fact that Android has removed the ti
On 09/05/2017 05:06 AM, Prarit Bhargava wrote:
printk.time=1/CONFIG_PRINTK_TIME=1 adds a unmodified local hardware clock
timestamp to printk messages. The local hardware clock loses time each
day making it difficult to determine exactly when an issue has occurred in
the kernel log, and making it
The Documentation/arm64/memory.txt says:
When using KVM, the hypervisor maps kernel pages in EL2, at a fixed
offset from the kernel VA (top 24bits of the kernel VA set to zero):
In fact, kernel addresses are transleted to HYP with kern_hyp_va macro,
which has more options, and none of them assumes
This is for readability as well as to avoid checkpatch warnings when
adding new bit flag information in the future.
Signed-off-by: David Lin
---
include/linux/leds.h | 18 +-
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/include/linux/leds.h b/include/linux/leds.h
This patch adds the LED_BRIGHTNESS_FAST flag to allow the driver to
indicate that the brightness_set() callback is implemented on a fastpath
so that the LED core may choose to for example use a hrtimer to
implement the duration of a trigger for better timing accuracy.
Suggested-by: Jacek Anaszewsk
Hi,
These patch series add the LED_BRIGHTNESS_FAST flag support for
ledtrig-transient to use hrtimer so that platforms with high-resolution timer
support can have better accuracy in the trigger duration timing. The need for
this support is driven by the fact that Android has removed the timed_oupu
This patch adds a hrtimer to ledtrig-transient so that when driver is
registered with LED_BRIGHTNESS_FAST, the hrtimer is used for the better
time accuracy in handling the duration.
Signed-off-by: David Lin
---
drivers/leds/trigger/ledtrig-transient.c | 59 +---
1 fil
On Mon 11-09-17 13:44:39, David Rientjes wrote:
> On Mon, 11 Sep 2017, Roman Gushchin wrote:
>
> > This patchset makes the OOM killer cgroup-aware.
> >
> > v8:
> > - Do not kill tasks with OOM_SCORE_ADJ -1000
> > - Make the whole thing opt-in with cgroup mount option control
> > - Drop oom_
On Tue 12-09-17 21:01:15, Roman Gushchin wrote:
> On Mon, Sep 11, 2017 at 01:48:39PM -0700, David Rientjes wrote:
> > On Mon, 11 Sep 2017, Roman Gushchin wrote:
> >
> > > Add a "groupoom" cgroup v2 mount option to enable the cgroup-aware
> > > OOM killer. If not set, the OOM selection is performed
On 2017/8/29 22:56, Michael S. Tsirkin wrote:
On Tue, Aug 29, 2017 at 11:46:34AM +, Yang Zhang wrote:
Some latency-intensive workload will see obviously performance
drop when running inside VM.
But are we trading a lot of CPU for a bit of lower latency?
The main reason is that the overhe
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