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Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) [message #6274 is a reply to message #6259]

Wed, 13 September 2006 08:06

Pavel Emelianov
Messages: 1149
Registered: September 2006

Senior Member

Chandra Seetharaman wrote:
> On Tue, 2006-09-12 at 14:48 +0400, Pavel Emelianov wrote:
> <snip>
>
>>> I do not think it is that simple since
>>> - there is typically more than one class I want to set guarantee to
>>> - I will not able to use both limit and guarantee
>>> - Implementation will not be work-conserving.
>>>
>>> Also, How would you configure the following in your model ?
>>>
>>> 5 classes: Class A(10, 40), Class B(20, 100), Class C (30, 100), Class D
>>> (5, 100), Class E(15, 50); (class_name(guarantee, limit))
>>>
>>>
>> What's the total memory amount on the node? Without it it's hard to make
>> any
>> guarantee.
>>
>
> I wrote the example treating them as %, so 100 would be the total amount
> of memory.
>
OK. Then limiting must be done this way (unreclaimable limit/total limit)
A (15/40)
B (25/100)
C (35/100)
D (10/100)
E (20/50)
In this case each group will receive it's guarantee for sure.

E.g. even if A, B, E and D will eat all it's unreclaimable memory then
we'll have
100 - 15 - 25 - 20 - 10 = 30% of memory left (maybe after reclaiming) which
is perfectly enough for C's guarantee.
>
>>> "Limit only" approach works for DoS prevention. But for providing QoS
>>> you would need guarantee.
>>>
>>>
>> You may not provide guarantee on physycal resource for a particular group
>> without limiting its usage by other groups. That's my major idea.
>>
>
> I agree with that, but the other way around (i.e provide guarantee for
> everyone by imposing limits on everyone) is what I am saying is not
> possible.
Then how do you make sure that memory WILL be available when the group needs
it without limiting the others in a proper way?

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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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