From: Balbir Singh <balbir@in.ibm.com>
To: Pavel Emelianov <xemul@openvz.org>
Cc: sekharan@us.ibm.com, Srivatsa <vatsa@in.ibm.com>,
Rik van Riel <riel@redhat.com>,
CKRM-Tech <ckrm-tech@lists.sourceforge.net>,
Dave Hansen <haveblue@us.ibm.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Andi Kleen <ak@suse.de>, Christoph Hellwig <hch@infradead.org>,
Andrey Savochkin <saw@sw.ru>,
devel@openvz.org, Matt Helsley <matthltc@us.ibm.com>,
Hugh Dickins <hugh@veritas.com>,
Alexey Dobriyan <adobriyan@mail.ru>, Kirill Korotaev <dev@sw.ru>,
Oleg Nesterov <oleg@tv-sign.ru>,
Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
Date: Thu, 14 Sep 2006 13:36:54 +0530 [thread overview]
Message-ID: <45090D9E.9000903@in.ibm.com> (raw)
In-Reply-To: <45090A6E.1040206@openvz.org>
Pavel Emelianov wrote:
> I don't understand your idea. Limit does _not_ imply anything - it's
> just a limit.
> You may limit anything to anyone w/o bothering the consequences.
> Guarantee implies that the resource you guarantee will be available and
> this "will be" is something not that easy.
>
> So I repeat my question - how can you be sure that these X megabytes you
> guarantee to some group won't be used by others so that you won't be able
> to reclaim them?
>
>
May be we can treat a guarantee as a soft guarantee. A soft
guarantee would imply that when a group needs its guaranteed resources, the
system makes its best effort to make it available.
In soft guarantees, resources not actively used by a group can be shared with
other groups.
Hard guarantees would probably require reserving the resource in advance and
sharing of the resources not used, with other groups, might not be possible.
Comments?
--
Balbir Singh,
Linux Technology Center,
IBM Software Labs
next prev parent reply other threads:[~2006-09-14 8:07 UTC|newest]
Thread overview: 144+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-05 15:02 [PATCH] BC: resource beancounters (v4) (added user memory) Kirill Korotaev
2006-09-05 15:19 ` [PATCH 1/13] BC: introduce atomic_dec_and_lock_irqsave() Kirill Korotaev
2006-09-05 15:20 ` [PATCH 2/13] BC: kconfig Kirill Korotaev
2006-09-05 15:21 ` [PATCH 3/17] BC: beancounters core (API) Kirill Korotaev
2006-09-05 15:23 ` [PATCH 4/13] BC: context inheriting and changing Kirill Korotaev
2006-09-05 15:24 ` [PATCH 5/13] BC: user interface (syscalls) Kirill Korotaev
2006-09-05 16:04 ` [ckrm-tech] " Balbir Singh
2006-09-06 8:29 ` Pavel Emelianov
2006-09-06 8:57 ` Balbir Singh
2006-09-06 10:42 ` Pavel Emelianov
2006-09-06 13:23 ` Balbir Singh
2006-09-06 13:45 ` Balbir Singh
2006-09-06 14:23 ` Kirill Korotaev
2006-09-05 15:25 ` [PATCH 6/13] BC: kernel memory (core) Kirill Korotaev
2006-09-05 15:26 ` [PATCH 7/13] BC: kernel memory (marks) Kirill Korotaev
2006-09-06 14:19 ` Cedric Le Goater
2006-09-05 15:27 ` [PATCH 8/13] BC: locked pages (core) Kirill Korotaev
2006-09-05 15:29 ` [PATCH 9/13] BC: locked pages (charge hooks) Kirill Korotaev
2006-09-06 3:43 ` Nick Piggin
2006-09-06 8:45 ` Pavel Emelianov
2006-09-06 9:41 ` Nick Piggin
2006-09-06 14:16 ` [ckrm-tech] " Kirill Korotaev
2006-09-05 15:30 ` [PATCH 10/13] BC: privvm pages Kirill Korotaev
2006-09-05 15:31 ` [PATCH 11/13] BC: vmrss (preparations) Kirill Korotaev
2006-09-05 22:09 ` Cedric Le Goater
2006-09-06 13:59 ` Kirill Korotaev
2006-09-07 16:28 ` [ckrm-tech] " Balbir Singh
2006-09-05 15:32 ` [PATCH 12/13] BC: vmrss (core) Kirill Korotaev
2006-09-05 15:33 ` [PATCH 13/13] BC: vmrss (charges) Kirill Korotaev
2006-09-05 16:53 ` [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) Balbir Singh
2006-09-06 8:34 ` Pavel Emelianov
2006-09-06 13:06 ` Kirill Korotaev
2006-09-06 19:17 ` Balbir Singh
2006-09-06 22:06 ` Chandra Seetharaman
2006-09-07 3:08 ` Balbir Singh
2006-09-08 7:33 ` Pavel Emelianov
2006-09-08 15:43 ` Dave Hansen
2006-09-08 18:26 ` Balbir Singh
2006-09-11 6:56 ` Pavel Emelianov
2006-09-11 7:54 ` Balbir Singh
2006-09-11 8:13 ` Pavel Emelianov
2006-09-11 8:19 ` Balbir Singh
2006-09-12 10:39 ` Pavel Emelianov
2006-09-12 10:40 ` Pavel Emelianov
2006-09-12 12:01 ` Balbir Singh
2006-09-13 13:39 ` Pavel Emelianov
2006-09-11 10:21 ` Srivatsa Vaddagiri
2006-09-12 10:35 ` Pavel Emelianov
2006-09-11 18:49 ` Chandra Seetharaman
2006-09-12 10:48 ` Pavel Emelianov
2006-09-12 23:58 ` Chandra Seetharaman
2006-09-13 8:06 ` Pavel Emelianov
2006-09-13 12:15 ` Srivatsa Vaddagiri
2006-09-13 13:35 ` Pavel Emelianov
2006-09-13 22:31 ` Chandra Seetharaman
2006-09-14 7:53 ` Pavel Emelianov
2006-09-14 8:06 ` Balbir Singh [this message]
2006-09-14 13:02 ` Pavel Emelianov
2006-09-15 0:02 ` Chandra Seetharaman
2006-09-15 7:21 ` Pavel Emelianov
2006-09-15 8:49 ` Kirill Korotaev
2006-09-18 23:51 ` Chandra Seetharaman
2006-09-14 23:42 ` Chandra Seetharaman
2006-09-15 7:15 ` Pavel Emelianov
2006-09-15 8:55 ` Kirill Korotaev
2006-09-15 11:15 ` Pavel Emelianov
2006-09-18 8:25 ` Balbir Singh
2006-09-18 8:56 ` Pavel Emelianov
2006-09-18 11:20 ` Balbir Singh
2006-09-18 11:32 ` Pavel Emelianov
2006-09-19 0:05 ` Chandra Seetharaman
2006-09-19 8:04 ` Pavel Emelianov
2006-09-18 11:27 ` Balbir Singh
2006-09-18 12:37 ` Pavel Emelianov
2006-09-19 0:08 ` Chandra Seetharaman
2006-09-19 8:06 ` Pavel Emelianov
2006-09-18 23:48 ` Chandra Seetharaman
2006-09-11 18:44 ` Chandra Seetharaman
2006-09-15 8:57 ` Kirill Korotaev
2006-09-18 23:57 ` Chandra Seetharaman
2006-09-08 19:23 ` Chandra Seetharaman
2006-09-08 21:43 ` Rohit Seth
2006-09-11 18:25 ` Chandra Seetharaman
2006-09-11 19:10 ` Rohit Seth
2006-09-11 19:42 ` Chandra Seetharaman
2006-09-11 23:58 ` Rohit Seth
2006-09-12 9:53 ` Balbir Singh
2006-09-12 23:54 ` Chandra Seetharaman
2006-09-13 0:39 ` Rohit Seth
2006-09-13 1:10 ` Chandra Seetharaman
2006-09-13 1:25 ` Rohit Seth
2006-09-13 4:41 ` Srivatsa Vaddagiri
2006-09-13 22:20 ` Chandra Seetharaman
2006-09-14 1:22 ` Rohit Seth
2006-09-14 23:13 ` Chandra Seetharaman
2006-09-11 19:48 ` [Devel] " Kir Kolyshkin
2006-09-12 0:28 ` Rohit Seth
2006-09-12 10:44 ` Srivatsa Vaddagiri
2006-09-12 17:22 ` Rohit Seth
2006-09-12 17:40 ` Srivatsa Vaddagiri
2006-09-12 18:02 ` Rohit Seth
2006-09-13 0:02 ` Chandra Seetharaman
2006-09-13 0:43 ` Rohit Seth
2006-09-13 1:13 ` Chandra Seetharaman
2006-09-13 1:33 ` Rohit Seth
2006-09-13 22:24 ` Chandra Seetharaman
2006-09-14 1:27 ` Rohit Seth
2006-09-14 23:28 ` Chandra Seetharaman
2006-09-15 9:26 ` Kirill Korotaev
2006-09-15 16:52 ` Rohit Seth
2006-09-15 21:21 ` [Devel] " Kir Kolyshkin
2006-09-15 21:58 ` Rohit Seth
2006-09-19 0:02 ` [ckrm-tech] [Devel] " Chandra Seetharaman
2006-09-18 23:59 ` [ckrm-tech] " Chandra Seetharaman
2006-09-06 21:47 ` Chandra Seetharaman
2006-09-08 15:33 ` Dave Hansen
2006-09-08 15:57 ` [RFC] Add tgid aggregation to beancounters (was Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)) Balbir Singh
2006-09-11 21:24 ` V2: " Balbir Singh
2006-09-15 16:40 ` [ckrm-tech] V2: Add tgid aggregation to beancounters (was " Kirill Korotaev
2006-10-09 8:23 ` Balbir Singh
2006-09-05 17:46 ` [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory) Dave Hansen
2006-09-05 18:28 ` Balbir Singh
2006-09-06 0:17 ` Rohit Seth
2006-09-08 15:30 ` Dave Hansen
2006-09-08 17:10 ` Rohit Seth
2006-09-08 17:26 ` Shailabh Nagar
2006-09-08 21:15 ` Rohit Seth
2006-09-08 21:28 ` Shailabh Nagar
2006-09-06 13:57 ` Kirill Korotaev
2006-09-06 21:54 ` Chandra Seetharaman
2006-09-07 7:29 ` Pavel Emelianov
2006-09-07 19:16 ` Chandra Seetharaman
2006-09-08 7:22 ` Pavel Emelianov
2006-09-08 19:07 ` Chandra Seetharaman
2006-09-11 7:02 ` Pavel Emelianov
2006-09-11 13:04 ` Srivatsa Vaddagiri
2006-09-12 10:24 ` Pavel Emelianov
2006-09-12 10:29 ` Srivatsa Vaddagiri
2006-09-12 11:06 ` Pavel Emelianov
2006-09-12 12:04 ` Srivatsa Vaddagiri
2006-09-11 18:47 ` Chandra Seetharaman
2006-09-07 19:29 ` Chandra Seetharaman
2006-09-08 7:26 ` Pavel Emelianov
2006-09-08 19:10 ` Chandra Seetharaman
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