Linux Power Management Mini-Summit -- Ottawa -- July 22, 2008

Linux Power Management Mini-Summit -- Ottawa -- July 22, 2008

[Kai Svahn]

Hello,

If there is still room I would like to attend also. 

I'm interested about run time pm.

Cheers,
Kai

Linux Power Management Mini-Summit -- Ottawa -- July 22, 2008

[Len Brown]

We'll be in The Rideau Suite in Les-Suites
Tuesday July 22nd 8:30-18:30.

Thanks to HP for sponsoring
lunch at 12:30 as well as snacks at 10:00 and 15:30.
We'll wing it for dinner.

On linux-pm (sorry, on sabbatical I've been
bad about keeping up on email) I've seen
intent to attend from:

Len Brown <len.brown@intel.com>
Alan Stern <stern@rowland.harvard.edu>
Dipankar Sarma <dipankar@in.ibm.com>
Rafael J. Wysocki <rjw@sisk.pl>
"Woodruff, Richard" <r-woodruff2@ti.com>
Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Matt Domsch <Matt_Domsch@dell.com>
Jarod Wilson <jwilson@redhat.com>
Tim Bird <tim.bird@am.sony.com>
Paul Mundt <lethal@linux-sh.org>
Hiroyuki Machida <Hiroyuki.Mach@gmail.com>

Several send their regrets:
Dave Jones
Pavel Machek
Arjan van de Ven

If you plan to attend, please let me know,
because the folks at OLS want to know,
to simplify OLS registration.

thanks,
-Len
---

We are again planning a Linux Power Management Mini-Summit preceding OLS.
This year we are looking at a single day, Tuesday July 22nd.

OLS is generously supporting mini-summits by providing the room
and projector: http://www.linuxsymposium.org/2008/minisummits.php

If you are interested in sponsoring the food or
other forum needs, please let me know.

Minutes from last year's meeting can be found here:
http://lwn.net/Articles/249019

If you have feedback on last year's meeting that
we can use to improve this year's, please speak up.

The feedback at the time was pretty positive, so I'm thinking
that unless there are new best-known-methods, that we'll stick
with the same open method of self-nominated attendees,
an agenda provoked by discussion on linux-pm ahead of time
and consensus of attendees, and a forum small enough to support
a single focused discussion.

(yes, one improvement I plan on this year is to publish minutes immediately.
 OLS was sort of hectic for me last year and that caused a delay)

thanks,
-Len

Linux Power Management Mini-Summit -- Ottawa -- July 22, 2008

[Len Brown]

This is an open invitation to participate in
a Linux Power Management mini-summit
9AM Tuesday July 22, 2008 in Ottawa.

This is the day before the Ottawa Linux Symposium.
OLS is generously supporting Linux mini-summits by providing the room
and projector: http://www.linuxsymposium.org/2008/minisummits.php

The meeting format will be round-table discussion.
There will be no phone bridge or audio/video recording.
However, there will be written minutes as there
were last year:  http://lwn.net/Articles/249019

Send suggestions for topics to linux-pm@lists.osdl.org,
whether you plan to attend or not.  The attendees will
form the agenda by consensus at the start of the session.

If you would like to attend, please send a note to
linux-pm@lists.osdl.org announcing your intent,
and what you would like to discuss.

Last year we were were cautious about presentations, for fear they
would not support discussion.  But the short ones we had actually
facilitied discussion, so we'll allow them again this year.

thanks,
-Len

ps. There is an opportunity for your company to help sponsor
the event -- for right now we are on our own for food.
If you are interseted, please contact me and OLS.

Re: Linux Power Management Mini-Summit -- Ottawa -- July 22, 2008

[Dipankar Sarma]

On Wed, Jun 25, 2008 at 02:44:01PM -0400, Len Brown wrote:
> This is an open invitation to participate in
> a Linux Power Management mini-summit
> 9AM Tuesday July 22, 2008 in Ottawa.
> 
> Send suggestions for topics to linux-pm@lists.osdl.org,
> whether you plan to attend or not.  The attendees will
> form the agenda by consensus at the start of the session.
> 
> If you would like to attend, please send a note to
> linux-pm@lists.osdl.org announcing your intent,
> and what you would like to discuss.

I would like to attend if there is a slot still available.
I could request only after knowing for sure I would be able
to travel.

I have been working mostly with our server h/w folks lately and it would
be nice to see some of our upcoming challenges discussed at the mini-summit.

1. CPU power management
	- CPU consolidation strategy (getting work done on fewer CPUs) 
	- scheduler issues

2. Memory power management 
	- Strategies for upcoming technologies

3. I/O power management through hotplug

4. Overall server power management
	- Per-subsystem control vs global powersave modes

5. Power management in virtuaized environment
	- #1/#2/#3 in virtualized environment
	- OS-KVM/Xen interaction needed for it

Thanks
Dipankar

Re: Linux Power Management Mini-Summit -- Ottawa -- July 22, 2008

[Len Brown]

On Thu, 26 Jun 2008, Dipankar Sarma wrote:

> On Wed, Jun 25, 2008 at 02:44:01PM -0400, Len Brown wrote:
> > This is an open invitation to participate in
> > a Linux Power Management mini-summit
> > 9AM Tuesday July 22, 2008 in Ottawa.
> > 
> > Send suggestions for topics to linux-pm@lists.osdl.org,
> > whether you plan to attend or not.  The attendees will
> > form the agenda by consensus at the start of the session.
> > 
> > If you would like to attend, please send a note to
> > linux-pm@lists.osdl.org announcing your intent,
> > and what you would like to discuss.
> 
> I would like to attend if there is a slot still available.
> I could request only after knowing for sure I would be able
> to travel.
> 
> I have been working mostly with our server h/w folks lately and it would
> be nice to see some of our upcoming challenges discussed at the mini-summit.
> 
> 1. CPU power management
> 	- CPU consolidation strategy (getting work done on fewer CPUs) 
> 	- scheduler issues
> 
> 2. Memory power management 
> 	- Strategies for upcoming technologies
> 
> 3. I/O power management through hotplug
> 
> 4. Overall server power management
> 	- Per-subsystem control vs global powersave modes
> 
> 5. Power management in virtuaized environment
> 	- #1/#2/#3 in virtualized environment
> 	- OS-KVM/Xen interaction needed for it
> 

yes, see you there.

cheers,
-Len

Re: Linux Power Management Mini-Summit -- Ottawa -- July 22, 2008

[Paul Mundt]

On Thu, Jun 26, 2008 at 01:12:19AM +0530, Dipankar Sarma wrote:
> On Wed, Jun 25, 2008 at 02:44:01PM -0400, Len Brown wrote:
> > This is an open invitation to participate in
> > a Linux Power Management mini-summit
> > 9AM Tuesday July 22, 2008 in Ottawa.
> > 
> > Send suggestions for topics to linux-pm@lists.osdl.org,
> > whether you plan to attend or not.  The attendees will
> > form the agenda by consensus at the start of the session.
> > 
> > If you would like to attend, please send a note to
> > linux-pm@lists.osdl.org announcing your intent,
> > and what you would like to discuss.
> 
> I would like to attend if there is a slot still available.
> I could request only after knowing for sure I would be able
> to travel.
> 
> I have been working mostly with our server h/w folks lately and it would
> be nice to see some of our upcoming challenges discussed at the mini-summit.
> 
> 1. CPU power management
> 	- CPU consolidation strategy (getting work done on fewer CPUs) 
> 	- scheduler issues
> 
> 2. Memory power management 
> 	- Strategies for upcoming technologies
> 
I'm also interested in attending. This year I'd mostly like to talk about
memory power management as well, including some of the work we've done on
top of page migration for this.

Re: Linux Power Management Mini-Summit -- Ottawa -- July 22, 2008

[Hiroyuki Machida]

Hi,

I'm also interesting to attend if there is a slot still available.
I had some experience with old 2.6 kernel PM as part of
trial project, http://www.linuxsymposium.org/2006/view_abstract.php?content_key=68.

I'm intersting in CPUIDLE on non ACPI-based systems.

Thanks,
Hiroyuki Machida



On Tue, Jul 1, 2008 at 12:23 PM, Paul Mundt <lethal@linux-sh.org> wrote:
> On Thu, Jun 26, 2008 at 01:12:19AM +0530, Dipankar Sarma wrote:
>> On Wed, Jun 25, 2008 at 02:44:01PM -0400, Len Brown wrote:
>> > This is an open invitation to participate in
>> > a Linux Power Management mini-summit
>> > 9AM Tuesday July 22, 2008 in Ottawa.
>> >
>> > Send suggestions for topics to linux-pm@lists.osdl.org,
>> > whether you plan to attend or not.  The attendees will
>> > form the agenda by consensus at the start of the session.
>> >
>> > If you would like to attend, please send a note to
>> > linux-pm@lists.osdl.org announcing your intent,
>> > and what you would like to discuss.
>>
>> I would like to attend if there is a slot still available.
>> I could request only after knowing for sure I would be able
>> to travel.
>>
>> I have been working mostly with our server h/w folks lately and it would
>> be nice to see some of our upcoming challenges discussed at the mini-summit.
>>
>> 1. CPU power management
>>       - CPU consolidation strategy (getting work done on fewer CPUs)
>>       - scheduler issues
>>
>> 2. Memory power management
>>       - Strategies for upcoming technologies
>>
> I'm also interested in attending. This year I'd mostly like to talk about
> memory power management as well, including some of the work we've done on
> top of page migration for this.
> _______________________________________________
> linux-pm mailing list
> linux-pm@lists.linux-foundation.org
> https://lists.linux-foundation.org/mailman/listinfo/linux-pm
>

Re: Linux Power Management Mini-Summit -- Ottawa -- July 22, 2008

[Vaidyanathan Srinivasan]

* Dipankar Sarma <dipankar@in.ibm.com> [2008-06-26 01:12:19]:

> On Wed, Jun 25, 2008 at 02:44:01PM -0400, Len Brown wrote:
> > This is an open invitation to participate in
> > a Linux Power Management mini-summit
> > 9AM Tuesday July 22, 2008 in Ottawa.
> > 
> > Send suggestions for topics to linux-pm@lists.osdl.org,
> > whether you plan to attend or not.  The attendees will
> > form the agenda by consensus at the start of the session.
> > 
> > If you would like to attend, please send a note to
> > linux-pm@lists.osdl.org announcing your intent,
> > and what you would like to discuss.
> 
> I would like to attend if there is a slot still available.
> I could request only after knowing for sure I would be able
> to travel.

Hi Len,

I would like to attend if a slot is still available.

I have been working on scheduler enhancements for task consolidation.  

> 1. CPU power management
> 	- CPU consolidation strategy (getting work done on fewer CPUs) 
> 	- scheduler issues

I would like to discuss challenges in implementing the above features
for various application and workload characteristics.

> 2. Memory power management 
> 	- Strategies for upcoming technologies
> 
> 3. I/O power management through hotplug
> 
> 4. Overall server power management
> 	- Per-subsystem control vs global powersave modes
> 
> 5. Power management in virtuaized environment
> 	- #1/#2/#3 in virtualized environment
> 	- OS-KVM/Xen interaction needed for it

I would like to discuss the impact of power management features in
guest OS on the overall host system and challenges with power and
performance trade-off in virtualized environments with multiple
guests.

Thanks,
Vaidy

Re: Linux Power Management Mini-Summit -- Ottawa -- July 22, 2008

[Rafael J. Wysocki]

On Wednesday, 25 of June 2008, Len Brown wrote:
> This is an open invitation to participate in
> a Linux Power Management mini-summit
> 9AM Tuesday July 22, 2008 in Ottawa.
> 
> This is the day before the Ottawa Linux Symposium.
> OLS is generously supporting Linux mini-summits by providing the room
> and projector: http://www.linuxsymposium.org/2008/minisummits.php
> 
> The meeting format will be round-table discussion.
> There will be no phone bridge or audio/video recording.
> However, there will be written minutes as there
> were last year:  http://lwn.net/Articles/249019
> 
> Send suggestions for topics to linux-pm@lists.osdl.org,
> whether you plan to attend or not.  The attendees will
> form the agenda by consensus at the start of the session.
> 
> If you would like to attend, please send a note to
> linux-pm@lists.osdl.org announcing your intent,
> and what you would like to discuss.

I would like to attend and I'd like to discuss the new framework for suspending
and resuming devices and related things (like example implemetations of the
new callbacks, the handling of wake-up etc.).

Thanks,
Rafael

Re: Linux Power Management Mini-Summit -- Ottawa -- July 22, 2008

[Len Brown]

<deleted lkml from cc>

> > If you would like to attend, please send a note to
> > linux-pm@lists.osdl.org announcing your intent,
> > and what you would like to discuss.
> 
> I would like to attend and I'd like to discuss the new framework for suspending
> and resuming devices and related things (like example implemetations of the
> new callbacks, the handling of wake-up etc.).

Me too!
I'll be there, of course.

I believe that STR is too slow and would like to brainstorm about
how we can make it faster.

cheers,
-Len

Re: Linux Power Management Mini-Summit -- Ottawa -- July 22, 2008

[Matt Domsch]

On Thu, Jun 26, 2008 at 06:45:19PM -0400, Len Brown wrote:
> <deleted lkml from cc>
> 
> > > If you would like to attend, please send a note to
> > > linux-pm@lists.osdl.org announcing your intent,
> > > and what you would like to discuss.

I'll attend.  Server power management, specifically subsystem assists
/ communication channels  between BIOS, service processors, and the
OS.

-- 
Matt Domsch
Linux Technology Strategist, Dell Office of the CTO
linux.dell.com & www.dell.com/linux

Re: Linux Power Management Mini-Summit -- Ottawa -- July 22, 2008

[Nigel Cunningham]

Hi.

On Wed, 2008-06-25 at 14:44 -0400, Len Brown wrote:
> This is an open invitation to participate in
> a Linux Power Management mini-summit
> 9AM Tuesday July 22, 2008 in Ottawa.
> 
> This is the day before the Ottawa Linux Symposium.
> OLS is generously supporting Linux mini-summits by providing the room
> and projector: http://www.linuxsymposium.org/2008/minisummits.php
> 
> The meeting format will be round-table discussion.
> There will be no phone bridge or audio/video recording.
> However, there will be written minutes as there
> were last year:  http://lwn.net/Articles/249019
> 
> Send suggestions for topics to linux-pm@lists.osdl.org,
> whether you plan to attend or not.  The attendees will
> form the agenda by consensus at the start of the session.
> 
> If you would like to attend, please send a note to
> linux-pm@lists.osdl.org announcing your intent,
> and what you would like to discuss.
> 
> Last year we were were cautious about presentations, for fear they
> would not support discussion.  But the short ones we had actually
> facilitied discussion, so we'll allow them again this year.
> 
> thanks,
> -Len
> 
> ps. There is an opportunity for your company to help sponsor
> the event -- for right now we are on our own for food.
> If you are interseted, please contact me and OLS.

All I can say is "Have fun, guys." I'm interested in developments, and
would love to contribute but there's no way I'd be able to get there and
I have little time to do anything.

I'd be interested (of course) to hear the fruit of discussions re
hibernation.

Regards,

Nigel

Re: Linux Power Management Mini-Summit -- Ottawa -- July 22, 2008

[Pavel Machek]

On Wed 2008-06-25 14:44:01, Len Brown wrote:
> This is an open invitation to participate in
> a Linux Power Management mini-summit
> 9AM Tuesday July 22, 2008 in Ottawa.

I will not be able to make it :-(.

							Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html