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Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) [message #6378 is a reply to message #6365]

Fri, 15 September 2006 07:15

Pavel Emelianov
Messages: 1149
Registered: September 2006

Senior Member

Chandra Seetharaman wrote:
> On Thu, 2006-09-14 at 11:53 +0400, Pavel Emelianov wrote:
>
> <snip>
>
>
>>> What if I have 40 containers each with 2% guarantee ? what do we do
>>> then ? and many other different combinations (what I gave was not the
>>> _only_ scenario).
>>>
>>>
>> Then you need to solve a set of 40 equations. This sounds weird, but
>> don't afraid - sets like these are solved lightly.
>>
>
> extrapolate that to a varying # of permutations and real time changes in
> the system workload. Won't it be complex ?
>
I have a C program that computes limits to obtain desired guarantees
in a single 'for (i = 0; i < n; n++)' loop for any given set of guarantees.
With all error handling, beautifull output, nice formatting etc it weights
only 60 lines.
> Wouldn't it be a lot simpler if we have the guarantee support instead ?
> Why you do not like guarantee ? :)
>
I do not 'do not like guarantee'. I'm just sure that there are two ways
for providing guarantee (for unreclaimable resorces):
1. reserving resource for group in advance
2. limit resource for others
Reserving is worse as it is essentially limiting (you cut off 100Mb from
1Gb RAM thus limiting the other groups by 900Mb RAM), but this limiting
is too strict - you _have_ to reserve less than RAM size. Limiting in
run-time is more flexible (you may create an overcommited BC if you
want to) and leads to the same result - guarantee.
> <snip>
>
[snip]

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[Message index]

		[PATCH] BC: resource beancounters (v4) (added user memory) By: dev on Tue, 05 September 2006 14:59
		[PATCH 1/13] BC: introduce atomic_dec_and_lock_irqsave() By: dev on Tue, 05 September 2006 15:16
		[PATCH 2/13] BC: kconfig By: dev on Tue, 05 September 2006 15:16
		[PATCH 3/17] BC: beancounters core (API) By: dev on Tue, 05 September 2006 15:17
		[PATCH 4/13] BC: context inheriting and changing By: dev on Tue, 05 September 2006 15:19
		[PATCH 5/13] BC: user interface (syscalls) By: dev on Tue, 05 September 2006 15:21
		Re: [ckrm-tech] [PATCH 5/13] BC: user interface (syscalls) By: Balbir Singh on Tue, 05 September 2006 16:04
		Re: [ckrm-tech] [PATCH 5/13] BC: user interface (syscalls) By: Pavel Emelianov on Wed, 06 September 2006 08:29
		Re: [ckrm-tech] [PATCH 5/13] BC: user interface (syscalls) By: Balbir Singh on Wed, 06 September 2006 08:57
		Re: [ckrm-tech] [PATCH 5/13] BC: user interface (syscalls) By: Pavel Emelianov on Wed, 06 September 2006 10:42
		Re: [ckrm-tech] [PATCH 5/13] BC: user interface (syscalls) By: Balbir Singh on Wed, 06 September 2006 13:23
		Re: [ckrm-tech] [PATCH 5/13] BC: user interface (syscalls) By: Balbir Singh on Wed, 06 September 2006 13:45
		Re: [ckrm-tech] [PATCH 5/13] BC: user interface (syscalls) By: dev on Wed, 06 September 2006 14:20
		[PATCH 6/13] BC: kernel memory (core) By: dev on Tue, 05 September 2006 15:21
		[PATCH 7/13] BC: kernel memory (marks) By: dev on Tue, 05 September 2006 15:23
		Re: [PATCH 7/13] BC: kernel memory (marks) By: Cedric Le Goater on Wed, 06 September 2006 14:19
		[PATCH 8/13] BC: locked pages (core) By: dev on Tue, 05 September 2006 15:24
		[PATCH 9/13] BC: locked pages (charge hooks) By: dev on Tue, 05 September 2006 15:25
		Re: [PATCH 9/13] BC: locked pages (charge hooks) By: Nick Piggin on Wed, 06 September 2006 03:43
		Re: [PATCH 9/13] BC: locked pages (charge hooks) By: Pavel Emelianov on Wed, 06 September 2006 08:45
		Re: [PATCH 9/13] BC: locked pages (charge hooks) By: Nick Piggin on Wed, 06 September 2006 09:41
		Re: [ckrm-tech] [PATCH 9/13] BC: locked pages (charge hooks) By: dev on Wed, 06 September 2006 14:16
		[PATCH 10/13] BC: privvm pages By: dev on Tue, 05 September 2006 15:26
		[PATCH 11/13] BC: vmrss (preparations) By: dev on Tue, 05 September 2006 15:28
		Re: [PATCH 11/13] BC: vmrss (preparations) By: Cedric Le Goater on Tue, 05 September 2006 22:09
		Re: [PATCH 11/13] BC: vmrss (preparations) By: dev on Wed, 06 September 2006 13:56
		Re: [ckrm-tech] [PATCH 11/13] BC: vmrss (preparations) By: Balbir Singh on Thu, 07 September 2006 16:28
		[PATCH 12/13] BC: vmrss (core) By: dev on Tue, 05 September 2006 15:28
		[PATCH 13/13] BC: vmrss (charges) By: dev on Tue, 05 September 2006 15:29
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Balbir Singh on Tue, 05 September 2006 16:53
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Wed, 06 September 2006 08:34
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: dev on Wed, 06 September 2006 13:04
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Balbir Singh on Wed, 06 September 2006 19:17
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Wed, 06 September 2006 22:06
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Balbir Singh on Thu, 07 September 2006 03:08
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Fri, 08 September 2006 07:33
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Dave Hansen on Fri, 08 September 2006 15:43
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Balbir Singh on Fri, 08 September 2006 18:26
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Mon, 11 September 2006 06:56
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Balbir Singh on Mon, 11 September 2006 07:54
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Mon, 11 September 2006 08:13
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Balbir Singh on Mon, 11 September 2006 08:19
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Tue, 12 September 2006 10:40
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Balbir Singh on Tue, 12 September 2006 12:01
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Wed, 13 September 2006 13:39
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Tue, 12 September 2006 10:39
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Srivatsa Vaddagiri on Mon, 11 September 2006 10:21
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Tue, 12 September 2006 10:35
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Mon, 11 September 2006 18:49
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Tue, 12 September 2006 10:48
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Tue, 12 September 2006 23:58
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Wed, 13 September 2006 08:06
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Srivatsa Vaddagiri on Wed, 13 September 2006 12:15
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Wed, 13 September 2006 13:35
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Wed, 13 September 2006 22:31
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Thu, 14 September 2006 07:53
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Balbir Singh on Thu, 14 September 2006 08:06
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Thu, 14 September 2006 13:02
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Fri, 15 September 2006 00:02
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Fri, 15 September 2006 07:21
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: dev on Fri, 15 September 2006 08:46
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Mon, 18 September 2006 23:51
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Thu, 14 September 2006 23:42
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Fri, 15 September 2006 07:15
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: dev on Fri, 15 September 2006 08:51
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Fri, 15 September 2006 11:15
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Balbir Singh on Mon, 18 September 2006 08:25
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Mon, 18 September 2006 08:56
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Balbir Singh on Mon, 18 September 2006 11:20
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Mon, 18 September 2006 11:32
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Tue, 19 September 2006 00:05
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Tue, 19 September 2006 08:04
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Balbir Singh on Mon, 18 September 2006 11:27
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Mon, 18 September 2006 12:37
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Tue, 19 September 2006 00:08
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Tue, 19 September 2006 08:06
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Mon, 18 September 2006 23:48
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Mon, 11 September 2006 18:44
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: dev on Fri, 15 September 2006 08:53
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Mon, 18 September 2006 23:57
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Fri, 08 September 2006 19:23
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Rohit Seth on Fri, 08 September 2006 21:43
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Mon, 11 September 2006 18:25
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Rohit Seth on Mon, 11 September 2006 19:10
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Mon, 11 September 2006 19:42
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Rohit Seth on Mon, 11 September 2006 23:58
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Balbir Singh on Tue, 12 September 2006 09:53
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Tue, 12 September 2006 23:54
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Rohit Seth on Wed, 13 September 2006 00:39
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Wed, 13 September 2006 01:10
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Rohit Seth on Wed, 13 September 2006 01:25
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Srivatsa Vaddagiri on Wed, 13 September 2006 04:41
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Wed, 13 September 2006 22:20
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Rohit Seth on Thu, 14 September 2006 01:22
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Thu, 14 September 2006 23:13
		Re: Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: kir on Mon, 11 September 2006 19:47
		Re: Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Rohit Seth on Tue, 12 September 2006 00:28
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Srivatsa Vaddagiri on Tue, 12 September 2006 10:44
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Rohit Seth on Tue, 12 September 2006 17:22
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Srivatsa Vaddagiri on Tue, 12 September 2006 17:40
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Wed, 13 September 2006 00:02
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Rohit Seth on Wed, 13 September 2006 00:43
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Wed, 13 September 2006 01:13
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Wed, 06 September 2006 21:47
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Dave Hansen on Fri, 08 September 2006 15:33
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Dave Hansen on Tue, 05 September 2006 17:46
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Balbir Singh on Tue, 05 September 2006 18:28
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Rohit Seth on Wed, 06 September 2006 00:17
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Dave Hansen on Fri, 08 September 2006 15:30
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Rohit Seth on Fri, 08 September 2006 17:10
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Shailabh Nagar on Fri, 08 September 2006 17:26
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: dev on Wed, 06 September 2006 13:54
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Wed, 06 September 2006 21:54
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Thu, 07 September 2006 07:29
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Thu, 07 September 2006 19:16
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Fri, 08 September 2006 07:22
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Fri, 08 September 2006 19:07
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Mon, 11 September 2006 07:02
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Srivatsa Vaddagiri on Mon, 11 September 2006 13:04
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Tue, 12 September 2006 10:24
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Srivatsa Vaddagiri on Tue, 12 September 2006 10:29
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Tue, 12 September 2006 11:06
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Srivatsa Vaddagiri on Tue, 12 September 2006 12:04
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Mon, 11 September 2006 18:47
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Thu, 07 September 2006 19:29
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Pavel Emelianov on Fri, 08 September 2006 07:26
		Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) By: Chandra Seetharaman on Fri, 08 September 2006 19:10

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