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Re: [RFC][PATCH 4/7] UBC: syscalls (user interface) [message #5331 is a reply to message #5285]

Thu, 17 August 2006 17:08

Rohit Seth
Messages: 101
Registered: August 2006

Senior Member

On Thu, 2006-08-17 at 16:13 +0400, Kirill Korotaev wrote:
> Rohit Seth wrote:
> > On Wed, 2006-08-16 at 20:04 +0100, Alan Cox wrote:
> >
> >>Ar Mer, 2006-08-16 am 11:17 -0700, ysgrifennodd Rohit Seth:
> >>
> >>>I think there should be a check here for seeing if the new limits are
> >>>lower than the current usage of a resource. If so then take appropriate
> >>>action.
> >>
> >>Generally speaking there isn't a sane appropriate action because the
> >>resources can't just be yanked.
> >>
> >
> >
> > I was more thinking about (for example) user land physical memory limit
> > for that bean counter. If the limits are going down, then the system
> > call should try to flush out page cache pages or swap out anonymous
> > memory. But you are right that it won't be possible in all cases, like
> > for in kernel memory limits.
> Such kind of memory management is less efficient than the one
> making decisions based on global shortages and global LRU alogrithm.
>
> The problem here is that doing swap out takes more expensive disk I/O
> influencing other users.
>
> So throttling algorithms if wanted should be optional, not mandatory.
> Lets postpone it and concentrate on the core.
>

I'm really interested in seeing what changes you make in alloc_page when
the container limits are hit.

When a container is throttling then yes it will have some additional
cost to other containers but that is the cost of sharing an underlying
platform.

-rohit

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[Message index]

		[RFC][PATCH] UBC: user resource beancounters By: dev on Wed, 16 August 2006 15:23
		[RFC][PATCH 1/7] UBC: kconfig By: dev on Wed, 16 August 2006 15:34
		Re: [ckrm-tech] [RFC][PATCH 1/7] UBC: kconfig By: Chandra Seetharaman on Fri, 18 August 2006 19:57
		Re: [RFC][PATCH 1/7] UBC: kconfig By: Adrian Bunk on Fri, 18 August 2006 21:14
		Re: [RFC][PATCH 1/7] UBC: kconfig By: Pavel Machek on Fri, 25 August 2006 15:12
		[RFC][PATCH 2/7] UBC: core (structures, API) By: dev on Wed, 16 August 2006 15:35
		Re: [RFC][PATCH 2/7] UBC: core (structures, API) By: Alan Cox on Wed, 16 August 2006 16:38
		Re: [RFC][PATCH 2/7] UBC: core (structures, API) By: dev on Thu, 17 August 2006 11:40
		Re: [RFC][PATCH 2/7] UBC: core (structures, API) By: Andrew Morton on Wed, 16 August 2006 18:18
		Re: [RFC][PATCH 2/7] UBC: core (structures, API) By: dev on Thu, 17 August 2006 11:52
		Re: [RFC][PATCH 2/7] UBC: core (structures, API) By: Greg KH on Wed, 16 August 2006 17:15
		Re: [RFC][PATCH 2/7] UBC: core (structures, API) By: dev on Thu, 17 August 2006 11:43
		Re: [RFC][PATCH 2/7] UBC: core (structures, API) By: Greg KH on Thu, 17 August 2006 12:14
		Re: [ckrm-tech] [RFC][PATCH 2/7] UBC: core (structures, API) By: Dave Hansen on Thu, 17 August 2006 14:32
		Re: [ckrm-tech] [RFC][PATCH 2/7] UBC: core (structures, API) By: dev on Fri, 18 August 2006 12:34
		Re: [RFC][PATCH 2/7] UBC: core (structures, API) By: Rohit Seth on Wed, 16 August 2006 18:11
		Re: [RFC][PATCH 2/7] UBC: core (structures, API) By: dev on Thu, 17 August 2006 11:52
		Re: [RFC][PATCH 2/7] UBC: core (structures, API) By: Rohit Seth on Thu, 17 August 2006 16:55
		Re: [RFC][PATCH 2/7] UBC: core (structures, API) By: dev on Fri, 18 August 2006 11:13
		Re: [RFC][PATCH 2/7] UBC: core (structures, API) By: Rohit Seth on Fri, 18 August 2006 17:51
		Re: [RFC][PATCH 2/7] UBC: core (structures, API) By: Andrew Morton on Fri, 18 August 2006 05:31
		Re: [PATCH 2/7] UBC: core (structures, API) By: Andrey Savochkin on Fri, 18 August 2006 07:35
		Re: [ckrm-tech] [PATCH 2/7] UBC: core (structures, API) By: Matt Helsley on Fri, 18 August 2006 08:26
		Re: [ckrm-tech] [PATCH 2/7] UBC: core (structures, API) By: dev on Fri, 18 August 2006 11:50
		Re: [RFC][PATCH 2/7] UBC: core (structures, API) By: Alan Cox on Fri, 18 August 2006 15:39
		Re: [ckrm-tech] [RFC][PATCH 2/7] UBC: core (structures, API) By: Srivatsa Vaddagiri on Thu, 17 August 2006 11:09
		Re: [ckrm-tech] [RFC][PATCH 2/7] UBC: core (structures, API) By: dev on Thu, 17 August 2006 14:00
		Re: [ckrm-tech] [RFC][PATCH 2/7] UBC: core (structures, API) By: Chandra Seetharaman on Thu, 17 August 2006 18:59
		Re: [ckrm-tech] [RFC][PATCH 2/7] UBC: core (structures, API) By: Matt Helsley on Fri, 18 August 2006 01:58
		Re: [ckrm-tech] [RFC][PATCH 2/7] UBC: core (structures, API) By: Balbir Singh on Sun, 20 August 2006 05:01
		Re: [ckrm-tech] [RFC][PATCH 2/7] UBC: core (structures, API) By: Balbir Singh on Sun, 20 August 2006 04:58
		[RFC][PATCH 3/7] UBC: ub context and inheritance By: dev on Wed, 16 August 2006 15:36
		Re: [RFC][PATCH 3/7] UBC: ub context and inheritance By: Alan Cox on Wed, 16 August 2006 16:31
		Re: [ckrm-tech] [RFC][PATCH 3/7] UBC: ub context and inheritance By: Srivatsa Vaddagiri on Thu, 17 August 2006 11:09
		Re: Re: [ckrm-tech] [RFC][PATCH 3/7] UBC: ub context and inheritance By: xemul on Thu, 17 August 2006 13:21
		Re: [ckrm-tech] [RFC][PATCH 3/7] UBC: ub context and inheritance By: Matt Helsley on Fri, 18 August 2006 02:42
		Re: [ckrm-tech] [RFC][PATCH 3/7] UBC: ub context and inheritance By: dev on Fri, 18 August 2006 09:21
		Re: [ckrm-tech] [RFC][PATCH 3/7] UBC: ub context and inheritance By: Matt Helsley on Sat, 19 August 2006 02:19
		Re: [ckrm-tech] [RFC][PATCH 3/7] UBC: ub context and inheritance By: Chandra Seetharaman on Fri, 18 August 2006 20:03
		Re: [ckrm-tech] [RFC][PATCH 3/7] UBC: ub context and inheritance By: dev on Mon, 21 August 2006 10:30
		Re: [ckrm-tech] [RFC][PATCH 3/7] UBC: ub context and inheritance By: Chandra Seetharaman on Mon, 21 August 2006 20:48
		[RFC][PATCH 4/7] UBC: syscalls (user interface) By: dev on Wed, 16 August 2006 15:37
		Re: [RFC][PATCH 4/7] UBC: syscalls (user interface) By: Alan Cox on Wed, 16 August 2006 16:32
		Re: [RFC][PATCH 4/7] UBC: syscalls (user interface) By: Alan Cox on Wed, 16 August 2006 18:44
		Re: [RFC][PATCH 4/7] UBC: syscalls (user interface) By: Rohit Seth on Wed, 16 August 2006 19:22
		Re: [RFC][PATCH 4/7] UBC: syscalls (user interface) By: dev on Thu, 17 August 2006 12:11
		Re: [RFC][PATCH 4/7] UBC: syscalls (user interface) By: Andrew Morton on Thu, 17 August 2006 15:40
		Re: [PATCH 4/7] UBC: syscalls (user interface) By: Andrey Savochkin on Fri, 18 August 2006 08:08
		Re: [ckrm-tech] [PATCH 4/7] UBC: syscalls (user interface) By: Dave Hansen on Fri, 18 August 2006 14:45
		Re: [ckrm-tech] [PATCH 4/7] UBC: syscalls (user interface) By: Magnus Damm on Mon, 21 August 2006 02:47
		Re: [ckrm-tech] [PATCH 4/7] UBC: syscalls (user interface) By: Rohit Seth on Tue, 22 August 2006 01:16
		Re: [ckrm-tech] [PATCH 4/7] UBC: syscalls (user interface) By: Magnus Damm on Tue, 22 August 2006 03:58
		Re: [ckrm-tech] [PATCH 4/7] UBC: syscalls (user interface) By: Chandra Seetharaman on Tue, 22 August 2006 18:34
		Re: [ckrm-tech] [PATCH 4/7] UBC: syscalls (user interface) By: Rohit Seth on Thu, 24 August 2006 01:20
		Re: [RFC][PATCH 4/7] UBC: syscalls (user interface) By: dev on Fri, 18 August 2006 11:03
		Re: [RFC][PATCH 4/7] UBC: syscalls (user interface) By: Rohit Seth on Thu, 17 August 2006 17:08
		Re: [RFC][PATCH 4/7] UBC: syscalls (user interface) By: Greg KH on Wed, 16 August 2006 17:17
		Re: [RFC][PATCH 4/7] UBC: syscalls (user interface) By: dev on Thu, 17 August 2006 12:00
		Re: [RFC][PATCH 4/7] UBC: syscalls (user interface) By: Rohit Seth on Wed, 16 August 2006 18:17
		Re: [RFC][PATCH 4/7] UBC: syscalls (user interface) By: dev on Thu, 17 August 2006 12:03
		Re: [RFC][PATCH 4/7] UBC: syscalls (user interface) By: Rohit Seth on Thu, 17 August 2006 17:05
		Re: [ckrm-tech] [RFC][PATCH 4/7] UBC: syscalls (user interface) By: Srivatsa Vaddagiri on Thu, 17 August 2006 11:09
		Re: [ckrm-tech] [RFC][PATCH 4/7] UBC: syscalls (user interface) By: dev on Thu, 17 August 2006 14:03
		Re: [ckrm-tech] [RFC][PATCH 4/7] UBC: syscalls (user interface) By: Srivatsa Vaddagiri on Thu, 17 August 2006 16:19
		Re: [ckrm-tech] [RFC][PATCH 4/7] UBC: syscalls (user interface) By: Matt Helsley on Fri, 18 August 2006 02:31
		Re: [ckrm-tech] [RFC][PATCH 4/7] UBC: syscalls (user interface) By: dev on Fri, 18 August 2006 11:43
		Re: [ckrm-tech] [RFC][PATCH 4/7] UBC: syscalls (user interface) By: Matt Helsley on Sat, 19 August 2006 02:43
		Re: [ckrm-tech] [RFC][PATCH 4/7] UBC: syscalls (user interface) By: Chandra Seetharaman on Fri, 18 August 2006 20:13
		Re: [RFC][PATCH 4/7] UBC: syscalls (user interface) By: Arnd Bergmann on Fri, 18 August 2006 11:40
		[RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: dev on Wed, 16 August 2006 15:39
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Alan Cox on Wed, 16 August 2006 16:35
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: dev on Thu, 17 August 2006 13:45
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Dave Hansen on Wed, 16 August 2006 18:47
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Rohit Seth on Wed, 16 August 2006 19:15
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Alan Cox on Thu, 17 August 2006 00:02
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Rohit Seth on Thu, 17 August 2006 16:36
		Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: dev on Fri, 18 August 2006 08:43
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: dev on Thu, 17 August 2006 13:33
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Rohit Seth on Thu, 17 August 2006 17:13
		Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: dev on Fri, 18 August 2006 08:47
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: dev on Thu, 17 August 2006 13:29
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Dave Hansen on Thu, 17 August 2006 14:36
		Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: dev on Fri, 18 August 2006 08:12
		Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Dave Hansen on Fri, 18 August 2006 14:43
		Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: dev on Mon, 21 August 2006 08:56
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Rohit Seth on Wed, 16 August 2006 18:24
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: dev on Thu, 17 August 2006 13:25
		Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Dave Hansen on Thu, 17 August 2006 14:38
		Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: dev on Fri, 18 August 2006 09:29
		Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Dave Hansen on Fri, 18 August 2006 14:58
		Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: dev on Mon, 21 August 2006 10:38
		Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Dave Hansen on Mon, 21 August 2006 15:10
		Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Dave Hansen on Fri, 18 August 2006 15:06
		Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: dev on Mon, 21 August 2006 12:36
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Rohit Seth on Thu, 17 August 2006 17:02
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: dev on Fri, 18 August 2006 09:36
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Rohit Seth on Fri, 18 August 2006 16:55
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: dev on Mon, 21 August 2006 10:41
		Re: [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Rohit Seth on Tue, 22 August 2006 01:23
		Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Chandra Seetharaman on Fri, 18 August 2006 20:26
		Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: dev on Mon, 21 August 2006 10:48
		Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) By: Chandra Seetharaman on Mon, 21 August 2006 20:55
		[RFC][PATCH 6/7] UBC: kernel memory acconting (mark objects) By: dev on Wed, 16 August 2006 15:40
		Re: [RFC][PATCH 6/7] UBC: kernel memory acconting (mark objects) By: Alan Cox on Wed, 16 August 2006 16:36
		[RFC][PATCH 7/7] UBC: proc interface By: dev on Wed, 16 August 2006 15:42
		Re: [RFC][PATCH 7/7] UBC: proc interface By: Greg KH on Wed, 16 August 2006 17:13
		Re: [RFC][PATCH 7/7] UBC: proc interface By: dev on Thu, 17 August 2006 13:41
		Re: [RFC][PATCH 7/7] UBC: proc interface By: Greg KH on Thu, 17 August 2006 15:40
		Re: Re: [RFC][PATCH 7/7] UBC: proc interface By: kir on Thu, 17 August 2006 16:12
		Re: [RFC][PATCH] UBC: user resource beancounters By: Alan Cox on Wed, 16 August 2006 19:06
		Re: [RFC][PATCH] UBC: user resource beancounters By: Rohit Seth on Wed, 16 August 2006 18:53
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Chandra Seetharaman on Thu, 17 August 2006 00:15
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Srivatsa Vaddagiri on Thu, 17 August 2006 11:02
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: dev on Thu, 17 August 2006 13:53
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Chandra Seetharaman on Thu, 17 August 2006 19:55
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Chandra Seetharaman on Fri, 18 August 2006 19:39
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: dev on Mon, 21 August 2006 13:21
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Chandra Seetharaman on Mon, 21 August 2006 21:45
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Alan Cox on Mon, 21 August 2006 22:01
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Chandra Seetharaman on Mon, 21 August 2006 22:44
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Rohit Seth on Tue, 22 August 2006 01:45
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Alan Cox on Tue, 22 August 2006 09:42
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Arjan van de Ven on Tue, 22 August 2006 09:57
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Alan Cox on Tue, 22 August 2006 10:54
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Rohit Seth on Thu, 24 August 2006 01:31
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Chandra Seetharaman on Tue, 22 August 2006 18:55
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Rohit Seth on Thu, 24 August 2006 01:44
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Chandra Seetharaman on Thu, 24 August 2006 02:04
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Alan Cox on Thu, 24 August 2006 10:49
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Chandra Seetharaman on Thu, 24 August 2006 23:48
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Kyle Moffett on Thu, 24 August 2006 23:55
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Chandra Seetharaman on Fri, 25 August 2006 18:21
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Alan Cox on Fri, 25 August 2006 20:25
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Chandra Seetharaman on Fri, 25 August 2006 21:37
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Alan Cox on Fri, 25 August 2006 22:30
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Chandra Seetharaman on Fri, 25 August 2006 22:59
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Rohit Seth on Thu, 24 August 2006 17:27
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Chandra Seetharaman on Thu, 24 August 2006 23:52
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: dev on Fri, 25 August 2006 11:10
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Chandra Seetharaman on Fri, 25 August 2006 18:47
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Alan Cox on Fri, 25 August 2006 20:32
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Chandra Seetharaman on Fri, 25 August 2006 22:23
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Alan Cox on Fri, 25 August 2006 22:51
		Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters By: Chandra Seetharaman on Fri, 25 August 2006 23:00

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