On 10/12/2018 12:30, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki
>
> Add two new metrics for CPU idle states, "above" and "below", to count
> the number of times the given state had been asked for (or entered
> from the kernel's perspective), but the observed idle duration turned
> out to
On Thu, Jan 10, 2019 at 10:53 AM Daniel Lezcano
wrote:
>
> On 10/12/2018 12:30, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki
> >
> > Add two new metrics for CPU idle states, "above" and "below", to count
> > the number of times the given state had been asked for (or entered
> > from the k
The recently introduced Energy Aware Scheduling (EAS) feature relies on
a large set of concepts, assumptions, and design choices that are
probably not obvious for an outsider. Moreover, enabling EAS on a
particular platform isn't straightforward because of all its
dependencies. This series tries to
Introduce a documentation file summarizing the key design points and
APIs of the newly introduced Energy Model framework.
Signed-off-by: Quentin Perret
---
Documentation/power/energy-model.txt | 144 +++
1 file changed, 144 insertions(+)
create mode 100644 Documentation/
Add some documentation detailing the main design points of EAS, as well
as a list of its dependencies.
Parts of this documentation are taken from Morten Rasmussen's original
EAS posting: https://lkml.org/lkml/2015/7/7/754
Reviewed-by: Qais Yousef
Co-authored-by: Morten Rasmussen
Signed-off-by:
Hi James/Peter,
thanks for this discussion, and sorry for my late response due to vacation.
On 2018/12/22 2:17, James Morse wrote:
> Hi Peter,
>
> On 19/12/2018 19:02, Peter Maydell wrote:
>> On Mon, 17 Dec 2018 at 15:56, James Morse wrote:
>>> I don't think this really matters. Its only the
This patchset did two things:
a. add a new document for vmcoreinfo
This document lists some variables that export to vmcoreinfo, and briefly
describles what these variables indicate. It should be instructive for
many people who do not know the vmcoreinfo.
b. export the value of sme mask to vmcore
For AMD machine with SME feature, makedumpfile tools need to know
whether the crashed kernel was encrypted or not. If SME is enabled
in the first kernel, the crashed kernel's page table(pgd/pud/pmd/pte)
contains the memory encryption mask, so makedumpfile needs to remove
the sme mask to obtain the
This document lists some variables that export to vmcoreinfo, and briefly
describles what these variables indicate. It should be instructive for
many people who do not know the vmcoreinfo.
Suggested-by: Borislav Petkov
Signed-off-by: Lianbo Jiang
---
Documentation/kdump/vmcoreinfo.txt | 500 +++
On Thu, 10 Jan 2019 at 12:09, gengdongjiu wrote:
> Peter, I summarize James's main idea, James think QEMU does not needs
> to check *something* if Qemu support firmware-first.
> What do we do for your comments?
Unless I'm missing something, the code in your most recent patchset
attempts to update
Adding Stephen to the discussion.
Adding Stephen to the discussion.
On Sat, Jan 5, 2019 at 6:27 PM, Uwe Kleine-König
wrote:
Hello Paul,
On Sat, Jan 05, 2019 at 06:05:38PM -0300, Paul Cercueil wrote:
On Sat, Jan 5, 2019 at 4:57 PM, Uwe Kleine-König
wrote:
> You are assuming stuff here abo
Hi, Lukasz,
On 四, 2018-12-06 at 20:55 +0100, Lukasz Luba wrote:
>
> On 12/6/18 8:18 PM, Lukasz Luba wrote:
> >
> > Hi Rui,
> >
> > On 12/5/18 4:09 PM, Zhang Rui wrote:
> > >
> > > On 三, 2018-11-07 at 18:09 +0100, Lukasz Luba wrote:
> > > >
> > > > This patch adds support irq mode in trip poin
>
> On Thu, 10 Jan 2019 at 12:09, gengdongjiu wrote:
> > Peter, I summarize James's main idea, James think QEMU does not needs
> > to check *something* if Qemu support firmware-first.
> > What do we do for your comments?
>
> Unless I'm missing something, the code in your most recent patchset att
gengdongjiu 将撤回邮件“[RFC RESEND PATCH] kvm: arm64: export memory error recovery
capability to user space”。
>
> On Thu, 10 Jan 2019 at 12:09, gengdongjiu wrote:
> > Peter, I summarize James's main idea, James think QEMU does not
> > needs to check *something* if Qemu support firmware-first.
> > What do we do for your comments?
>
> Unless I'm missing something, the code in your most recent patchset
>
The psi monitoring patches will need to determine the same states as
record_times(). To avoid calculating them twice, maintain a state mask
that can be consulted cheaply. Do this in a separate patch to keep the
churn in the main feature patch at a minimum.
This adds 4-byte state_mask member into ps
Renaming psi_group structure member fields used for calculating psi
totals and averages for clear distinction between them and trigger-related
fields that will be added next.
Signed-off-by: Suren Baghdasaryan
---
include/linux/psi_types.h | 15 ---
kernel/sched/psi.c| 26
From: Johannes Weiner
Cgroup has a standardized poll/notification mechanism for waking all
pollers on all fds when a filesystem node changes. To allow polling
for custom events, add a .poll callback that can override the default.
This is in preparation for pollable cgroup pressure files which ha
This is respin of:
https://lwn.net/ml/linux-kernel/20181214171508.7791-1-sur...@google.com/
Android is adopting psi to detect and remedy memory pressure that
results in stuttering and decreased responsiveness on mobile devices.
Psi gives us the stall information, but because we're dealing with
From: Johannes Weiner
Kernfs has a standardized poll/notification mechanism for waking all
pollers on all fds when a filesystem node changes. To allow polling
for custom events, add a .poll callback that can override the default.
This is in preparation for pollable cgroup pressure files which ha
Psi monitor aims to provide a low-latency short-term pressure
detection mechanism configurable by users. It allows users to
monitor psi metrics growth and trigger events whenever a metric
raises above user-defined threshold within user-defined time window.
Time window and threshold are both expres
This documents the Android binderfs filesystem used to dynamically add and
remove binder devices that are private to each instance.
Signed-off-by: Christian Brauner
---
Documentation/filesystems/binderfs.txt | 109 +
1 file changed, 109 insertions(+)
create mode 100644 D
On Fri, 11 Jan 2019 00:13:09 +0100
Christian Brauner wrote:
> This documents the Android binderfs filesystem used to dynamically add and
> remove binder devices that are private to each instance.
>
> Signed-off-by: Christian Brauner
Seems like a worthwhile addition overall. I know nothing abo
There has been some confusion since checkpatch started warning about bool
use in structures, and people have been avoiding using it.
Many people feel there is still a legitimate place for bool in structures,
so provide some guidance on bool usage derived from the entire thread that
spawned the che
On Thu, Jan 10, 2019 at 04:47:03PM -0700, Jonathan Corbet wrote:
> On Fri, 11 Jan 2019 00:13:09 +0100
> Christian Brauner wrote:
>
> > This documents the Android binderfs filesystem used to dynamically add and
> > remove binder devices that are private to each instance.
> >
> > Signed-off-by: Ch
On Fri, 11 Jan 2019 00:56:42 +0100
Christian Brauner wrote:
> > - Please consider doing this in RST and tying it into our documentation
> >tree. It's *almost* RST now, so the effort required will be almost
> >zero.
>
> Oh sure. I simply didn't know. I was just going by the files unde
On Thu, Jan 10, 2019 at 02:07:14PM -0800, Suren Baghdasaryan wrote:
> From: Johannes Weiner
>
> Kernfs has a standardized poll/notification mechanism for waking all
> pollers on all fds when a filesystem node changes. To allow polling
> for custom events, add a .poll callback that can override th
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