[Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Andy Lutomirski]

Would it make sense to have a session to try to resolve the current
cgroup v2 API disagreement?

In the interest of brevity, I'm not going to rehash the issues here,
but in extremely short summary, they include tasks in non-leaf cgroups
as well as whether threads in the same process can be in different
cgroups.

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[James Bottomley]

On Thu, 2016-10-27 at 10:29 -0700, Andy Lutomirski wrote:
> Would it make sense to have a session to try to resolve the current
> cgroup v2 API disagreement?
> 
> In the interest of brevity, I'm not going to rehash the issues here,
> but in extremely short summary, they include tasks in non-leaf 
> cgroups as well as whether threads in the same process can be in 
> different cgroups.

We could do it later on Tuesday, that way it might be possible to
include more of the containers crowd than are going to KS.

James

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Josh Triplett]

On Thu, Oct 27, 2016 at 10:39:41AM -0700, James Bottomley wrote:
> On Thu, 2016-10-27 at 10:29 -0700, Andy Lutomirski wrote:
> > Would it make sense to have a session to try to resolve the current
> > cgroup v2 API disagreement?
> > 
> > In the interest of brevity, I'm not going to rehash the issues here,
> > but in extremely short summary, they include tasks in non-leaf 
> > cgroups as well as whether threads in the same process can be in 
> > different cgroups.
> 
> We could do it later on Tuesday, that way it might be possible to
> include more of the containers crowd than are going to KS.

Do we have sufficient representation for both sides of that
disagreement at KS?

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Tejun Heo]

Hello,

(cc'ing Johannes)

On Thu, Oct 27, 2016 at 10:29:01AM -0700, Andy Lutomirski wrote:
> Would it make sense to have a session to try to resolve the current
> cgroup v2 API disagreement?
> 
> In the interest of brevity, I'm not going to rehash the issues here,
> but in extremely short summary, they include tasks in non-leaf cgroups
> as well as whether threads in the same process can be in different
> cgroups.

Yeah, sure.  Do we have some time on Mon evening?  I'm not sure I'll
be around Tue evening.

Thanks.

-- 
tejun

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Paul Turner]

I hadn't planned on attending since I've been completely slammed with
internal stuff this year.  But if this is happening I can probably
make a last minute booking.

On Thu, Oct 27, 2016 at 1:09 PM, Tejun Heo <tj@kernel.org> wrote:
> Hello,
>
> (cc'ing Johannes)
>
> On Thu, Oct 27, 2016 at 10:29:01AM -0700, Andy Lutomirski wrote:
>> Would it make sense to have a session to try to resolve the current
>> cgroup v2 API disagreement?
>>
>> In the interest of brevity, I'm not going to rehash the issues here,
>> but in extremely short summary, they include tasks in non-leaf cgroups
>> as well as whether threads in the same process can be in different
>> cgroups.
>
> Yeah, sure.  Do we have some time on Mon evening?  I'm not sure I'll
> be around Tue evening.
>
> Thanks.
>
> --
> tejun
> _______________________________________________
> Ksummit-discuss mailing list
> Ksummit-discuss@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/ksummit-discuss

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Peter Zijlstra]

On Thu, Oct 27, 2016 at 04:09:29PM -0400, Tejun Heo wrote:
> Hello,
> 
> (cc'ing Johannes)
> 
> On Thu, Oct 27, 2016 at 10:29:01AM -0700, Andy Lutomirski wrote:
> > Would it make sense to have a session to try to resolve the current
> > cgroup v2 API disagreement?
> > 
> > In the interest of brevity, I'm not going to rehash the issues here,
> > but in extremely short summary, they include tasks in non-leaf cgroups
> > as well as whether threads in the same process can be in different
> > cgroups.
> 
> Yeah, sure.  Do we have some time on Mon evening?  I'm not sure I'll
> be around Tue evening.

I'll be in santa-fu all week. I figured if I'd go to the trouble of
dragging myself all the way to nowhere in the middle of NM, I might as
well stay there.

Godawful choice of location.

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Theodore Ts'o]

On Thu, Oct 27, 2016 at 11:13:34PM +0200, Peter Zijlstra wrote:
> I'll be in santa-fu all week. I figured if I'd go to the trouble of
> dragging myself all the way to nowhere in the middle of NM, I might as
> well stay there.
> 
> Godawful choice of location.

Sorry, any location which is close to a major internaional airport is
incredibly expensive.

Personally, I was pushing for Providence, Rhode Island, which is about
45 minutes from the international airports at Boston or New York City
(Providence also has a larger airport than Santa Fe).

Unfortunately, when we were setting the location for Plumbers 18
months ago, people were still shell-shocked over the record snowfall
in the North East, and folks forgot that due to the altitude
differences (sea level versus 7200 feet), Providence is *warmer* and
has a historical average of 0 inches of snowfall this time of year.

Santa Fe is an amazing place to visit, with lots of great restaurants,
so hopefully you'll enjoy your stay, now that you've gotten here.

Cheers,

							- Ted

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Rik van Riel]

On Sun, 2016-10-30 at 19:50 -0400, Theodore Ts'o wrote:
> On Thu, Oct 27, 2016 at 11:13:34PM +0200, Peter Zijlstra wrote:
> > I'll be in santa-fu all week. I figured if I'd go to the trouble of
> > dragging myself all the way to nowhere in the middle of NM, I might
> > as
> > well stay there.
> > 
> > Godawful choice of location.
> 
> Sorry, any location which is close to a major internaional airport is
> incredibly expensive.
> 
> Personally, I was pushing for Providence, Rhode Island, which is
> about
> 45 minutes from the international airports at Boston or New York City
> (Providence also has a larger airport than Santa Fe).
> 

Providence would be a great location.

Cleveland could be nice too. It is only an
air hub for domestic flights, but easy to
reach from any international airport.

The city does not have a great reputation,
but it actually seems to have a decent
downtown, a world class art museum, etc.

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Serge E. Hallyn]

On Thu, Oct 27, 2016 at 04:09:29PM -0400, Tejun Heo wrote:
> Hello,
> 
> (cc'ing Johannes)
> 
> On Thu, Oct 27, 2016 at 10:29:01AM -0700, Andy Lutomirski wrote:
> > Would it make sense to have a session to try to resolve the current
> > cgroup v2 API disagreement?
> > 
> > In the interest of brevity, I'm not going to rehash the issues here,
> > but in extremely short summary, they include tasks in non-leaf cgroups
> > as well as whether threads in the same process can be in different
> > cgroups.
> 
> Yeah, sure.  Do we have some time on Mon evening?  I'm not sure I'll
> be around Tue evening.

FWIW I'm only arriving tuesday morning;  but obviously far more important
that Tejun be there, so I think I vote for monday night.

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Theodore Ts'o]

On Sun, Oct 30, 2016 at 10:27:23AM -0500, Serge E. Hallyn wrote:
> 
> FWIW I'm only arriving tuesday morning;  but obviously far more important
> that Tejun be there, so I think I vote for monday night.

we have time Monday *afternoon*, if that works for folks.  Monday
evening will conflict with the evening dinner, so if we want to do it
on Monday, we have free slots during the kernel summit core day.  If
there are people who need to attend who aren't core day invitees, we
have invited people who are needed for a particular discussion into a
specific core plenary day session before.

The other alternative would be to either do it Tuesday (we have a room
availble), or Wednesday or Thursday, where the kernel summit does have
a room reserved for technical sessions and for which LPC attendees are
explicitly invited (just as people with Kernel Summit badges are
invited to participate in LPC events).

I note there is a Cgroup v2 API session scheduled as part of the
containers miniconference on Wednesday morning.  I assume the goal is
try to settle this disagreement before the LPC minisummit?

Can someone give a summary of who the critical people are who need to
be present, and what their availability might be?  Finding a room
shouldn't be a problem.  It's going to people's availability....

	       		      	       - Ted

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[James Bottomley]

On Sun, 2016-10-30 at 19:41 -0400, Theodore Ts'o wrote:
> On Sun, Oct 30, 2016 at 10:27:23AM -0500, Serge E. Hallyn wrote:
> > 
> > FWIW I'm only arriving tuesday morning;  but obviously far more 
> > important that Tejun be there, so I think I vote for monday night.
> 
> we have time Monday *afternoon*, if that works for folks.  Monday
> evening will conflict with the evening dinner, so if we want to do it
> on Monday, we have free slots during the kernel summit core day.  If
> there are people who need to attend who aren't core day invitees, we
> have invited people who are needed for a particular discussion into a
> specific core plenary day session before.
> 
> The other alternative would be to either do it Tuesday (we have a 
> room availble), or Wednesday or Thursday, where the kernel summit 
> does have a room reserved for technical sessions and for which LPC 
> attendees  are explicitly invited (just as people with Kernel Summit 
> badges are invited to participate in LPC events).
> 
> I note there is a Cgroup v2 API session scheduled as part of the
> containers miniconference on Wednesday morning.  I assume the goal is
> try to settle this disagreement before the LPC minisummit?
> 
> Can someone give a summary of who the critical people are who need to
> be present, and what their availability might be?  Finding a room
> shouldn't be a problem.  It's going to people's availability....

It looks like everyone is available Tuesday.  There's a Facebook event
Tuesday evening, so we can't be too late, but Tuesday Afternoon should
work.  (Tejun is here all week, but has to go to the event).

James

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Serge E. Hallyn]

On Sun, Oct 30, 2016 at 07:41:11PM -0400, Theodore Ts'o wrote:
> On Sun, Oct 30, 2016 at 10:27:23AM -0500, Serge E. Hallyn wrote:
> > 
> > FWIW I'm only arriving tuesday morning;  but obviously far more important
> > that Tejun be there, so I think I vote for monday night.
> 
> we have time Monday *afternoon*, if that works for folks.  Monday
> evening will conflict with the evening dinner, so if we want to do it
> on Monday, we have free slots during the kernel summit core day.  If
> there are people who need to attend who aren't core day invitees, we
> have invited people who are needed for a particular discussion into a
> specific core plenary day session before.
> 
> The other alternative would be to either do it Tuesday (we have a room
> availble), or Wednesday or Thursday, where the kernel summit does have
> a room reserved for technical sessions and for which LPC attendees are
> explicitly invited (just as people with Kernel Summit badges are
> invited to participate in LPC events).
> 
> I note there is a Cgroup v2 API session scheduled as part of the
> containers miniconference on Wednesday morning.  I assume the goal is
> try to settle this disagreement before the LPC minisummit?
> 
> Can someone give a summary of who the critical people are who need to
> be present, and what their availability might be?  Finding a room
> shouldn't be a problem.  It's going to people's availability....

Looks like
	Tejun obviously needs to be there
	Andy wants to be there, and I assume it relates to his code
	There's an LXC contingency arriving monday night;  I'd like
	  someone (Christian, Stéphane, or Tycho) to make it on Tuesday
	  if possible.
	I'd like to be there, but I arrive at 10:30 Tuesday morning.
	I don't think Eric Biederman is going to be in Santa Fe, but
	  he'd be good to have there.
	I assume James Bottomley would like to be there?

(I assume there are others, but that's the list I'm aware of)

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Tejun Heo]

Hello,

On Mon, Oct 31, 2016 at 10:04:51AM -0500, Serge E. Hallyn wrote:
> Looks like
> 	Tejun obviously needs to be there
> 	Andy wants to be there, and I assume it relates to his code
> 	There's an LXC contingency arriving monday night;  I'd like
> 	  someone (Christian, Stéphane, or Tycho) to make it on Tuesday
> 	  if possible.
> 	I'd like to be there, but I arrive at 10:30 Tuesday morning.
> 	I don't think Eric Biederman is going to be in Santa Fe, but
> 	  he'd be good to have there.
> 	I assume James Bottomley would like to be there?
> 
> (I assume there are others, but that's the list I'm aware of)

Sorry, wasn't looking at emails yesteray.  Yeah, early Tue afternoon
works for me as long as we can finish before 4pm.

Thanks and see you tomorrow.

-- 
tejun

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Theodore Ts'o]

On Mon, Oct 31, 2016 at 09:19:59AM -0600, Tejun Heo wrote:
> 
> Sorry, wasn't looking at emails yesteray.  Yeah, early Tue afternoon
> works for me as long as we can finish before 4pm.

Does 3pm work for everyone?  Or would you like to do something a bit
earlier on Tuesday afternoon?  Say, 2m?

					- Ted

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Tejun Heo]

Hello,

On Mon, Oct 31, 2016 at 01:06:00PM -0400, Theodore Ts'o wrote:
> On Mon, Oct 31, 2016 at 09:19:59AM -0600, Tejun Heo wrote:
> > 
> > Sorry, wasn't looking at emails yesteray.  Yeah, early Tue afternoon
> > works for me as long as we can finish before 4pm.
> 
> Does 3pm work for everyone?  Or would you like to do something a bit
> earlier on Tuesday afternoon?  Say, 2m?

I think 2pm would be better but 3pm works fine too.  How about
everyone else?

Thanks.

-- 
tejun

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[James Bottomley]

On Mon, 2016-10-31 at 11:33 -0600, Tejun Heo wrote:
> Hello,
> 
> On Mon, Oct 31, 2016 at 01:06:00PM -0400, Theodore Ts'o wrote:
> > On Mon, Oct 31, 2016 at 09:19:59AM -0600, Tejun Heo wrote:
> > > 
> > > Sorry, wasn't looking at emails yesteray.  Yeah, early Tue
> > > afternoon
> > > works for me as long as we can finish before 4pm.
> > 
> > Does 3pm work for everyone?  Or would you like to do something a
> > bit
> > earlier on Tuesday afternoon?  Say, 2m?
> 
> I think 2pm would be better but 3pm works fine too.  How about
> everyone else?

Either works for me

James

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[James Bottomley]

On Mon, 2016-10-31 at 11:35 -0600, James Bottomley wrote:
> On Mon, 2016-10-31 at 11:33 -0600, Tejun Heo wrote:
> > Hello,
> > 
> > On Mon, Oct 31, 2016 at 01:06:00PM -0400, Theodore Ts'o wrote:
> > > On Mon, Oct 31, 2016 at 09:19:59AM -0600, Tejun Heo wrote:
> > > > 
> > > > Sorry, wasn't looking at emails yesteray.  Yeah, early Tue
> > > > afternoon works for me as long as we can finish before 4pm.
> > > 
> > > Does 3pm work for everyone?  Or would you like to do something a
> > > bit earlier on Tuesday afternoon?  Say, 2m?
> > 
> > I think 2pm would be better but 3pm works fine too.  How about
> > everyone else?
> 
> Either works for me

Actually, it turns out I have to do a final run through of the catering
for the Friday party at 14:00, so I can't make it after all, but I
think you've got enough people from both sides that there's no need to
retime this session again.

James

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Serge E. Hallyn]

Quoting Tejun Heo (tj@kernel.org):
> Hello,
> 
> On Mon, Oct 31, 2016 at 01:06:00PM -0400, Theodore Ts'o wrote:
> > On Mon, Oct 31, 2016 at 09:19:59AM -0600, Tejun Heo wrote:
> > > 
> > > Sorry, wasn't looking at emails yesteray.  Yeah, early Tue afternoon
> > > works for me as long as we can finish before 4pm.
> > 
> > Does 3pm work for everyone?  Or would you like to do something a bit
> > earlier on Tuesday afternoon?  Say, 2m?
> 
> I think 2pm would be better but 3pm works fine too.  How about
> everyone else?

Both work for me.  Sounds like 2pm is the safer bet if noone has
a conflict.

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Stéphane Graber]

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On Mon, Oct 31, 2016 at 11:33:51AM -0600, Tejun Heo wrote:
> Hello,
> 
> On Mon, Oct 31, 2016 at 01:06:00PM -0400, Theodore Ts'o wrote:
> > On Mon, Oct 31, 2016 at 09:19:59AM -0600, Tejun Heo wrote:
> > > 
> > > Sorry, wasn't looking at emails yesteray.  Yeah, early Tue afternoon
> > > works for me as long as we can finish before 4pm.
> > 
> > Does 3pm work for everyone?  Or would you like to do something a bit
> > earlier on Tuesday afternoon?  Say, 2m?
> 
> I think 2pm would be better but 3pm works fine too.  How about
> everyone else?
> 
> Thanks.

Either works for me.

-- 
Stéphane Graber
Ubuntu developer
http://www.ubuntu.com

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Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[Christian Brauner]

On October 31, 2016 11:42:51 AM MDT, "Stéphane Graber" <stgraber@ubuntu.com> wrote:
>On Mon, Oct 31, 2016 at 11:33:51AM -0600, Tejun Heo wrote:
>> Hello,
>> 
>> On Mon, Oct 31, 2016 at 01:06:00PM -0400, Theodore Ts'o wrote:
>> > On Mon, Oct 31, 2016 at 09:19:59AM -0600, Tejun Heo wrote:
>> > > 
>> > > Sorry, wasn't looking at emails yesteray.  Yeah, early Tue
>afternoon
>> > > works for me as long as we can finish before 4pm.
>> > 
>> > Does 3pm work for everyone?  Or would you like to do something a
>bit
>> > earlier on Tuesday afternoon?  Say, 2m?
>> 
>> I think 2pm would be better but 3pm works fine too.  How about
>> everyone else?
>> 
>> Thanks.
>
>Either works for me.

Both work for me too. Sorry, no reception on plane.

-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.

Re: [Ksummit-discuss] [LAST-MINUTE TOPIC] cgroup API

[James Bottomley]

On Mon, 2016-10-31 at 10:04 -0500, Serge E. Hallyn wrote:
> On Sun, Oct 30, 2016 at 07:41:11PM -0400, Theodore Ts'o wrote:
> > On Sun, Oct 30, 2016 at 10:27:23AM -0500, Serge E. Hallyn wrote:
> > > 
> > > FWIW I'm only arriving tuesday morning;  but obviously far more
> > > important
> > > that Tejun be there, so I think I vote for monday night.
> > 
> > we have time Monday *afternoon*, if that works for folks.  Monday
> > evening will conflict with the evening dinner, so if we want to do
> > it
> > on Monday, we have free slots during the kernel summit core day. 
> >  If
> > there are people who need to attend who aren't core day invitees,
> > we
> > have invited people who are needed for a particular discussion into
> > a
> > specific core plenary day session before.
> > 
> > The other alternative would be to either do it Tuesday (we have a
> > room
> > availble), or Wednesday or Thursday, where the kernel summit does
> > have
> > a room reserved for technical sessions and for which LPC attendees
> > are
> > explicitly invited (just as people with Kernel Summit badges are
> > invited to participate in LPC events).
> > 
> > I note there is a Cgroup v2 API session scheduled as part of the
> > containers miniconference on Wednesday morning.  I assume the goal
> > is
> > try to settle this disagreement before the LPC minisummit?
> > 
> > Can someone give a summary of who the critical people are who need
> > to
> > be present, and what their availability might be?  Finding a room
> > shouldn't be a problem.  It's going to people's availability....
> 
> Looks like
> 	Tejun obviously needs to be there

He's here all week, according to Chris.

> 	Andy wants to be there, and I assume it relates to his code
> 	There's an LXC contingency arriving monday night;  I'd like
> 	  someone (Christian, Stéphane, or Tycho) to make it on Tuesday
> 	  if possible.
> 	I'd like to be there, but I arrive at 10:30 Tuesday morning.
> 	I don't think Eric Biederman is going to be in Santa Fe, but
> 	  he'd be good to have there.

He's here now.

> 	I assume James Bottomley would like to be there?

Yes. (Provided you don't schedule it over anything I've said I'd go to,
which is why I like Tuesday).  I've got something 09:30 on Tuesday, so
late morning or afternoon works.

James


> (I assume there are others, but that's the list I'm aware of)
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