linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: "Balbir Singh" <balbir@in.ibm.com>
To: "Andrew Morton" <akpm@linux-foundation.org>
Cc: "Kirill Korotaev" <dev@sw.ru>,
	xemul@sw.ru, menage@google.com, vatsa@in.ibm.com,
	devel@openvz.org, linux-kernel@vger.kernel.org,
	containers@lists.osdl.org
Subject: Re: [RFC][PATCH 2/7] RSS controller core
Date: Sun, 11 Mar 2007 21:21:30 +0530	[thread overview]
Message-ID: <661de9470703110851h74656692m8d1fd8aa028237d8@mail.gmail.com> (raw)
In-Reply-To: <20070311045111.62d3e9f9.akpm@linux-foundation.org>

On 3/11/07, Andrew Morton <akpm@linux-foundation.org> wrote:
> > On Sun, 11 Mar 2007 15:26:41 +0300 Kirill Korotaev <dev@sw.ru> wrote:
> > Andrew Morton wrote:
> > > On Tue, 06 Mar 2007 17:55:29 +0300
> > > Pavel Emelianov <xemul@sw.ru> wrote:
> > >
> > >
> > >>+struct rss_container {
> > >>+   struct res_counter res;
> > >>+   struct list_head page_list;
> > >>+   struct container_subsys_state css;
> > >>+};
> > >>+
> > >>+struct page_container {
> > >>+   struct page *page;
> > >>+   struct rss_container *cnt;
> > >>+   struct list_head list;
> > >>+};
> > >
> > >
> > > ah.  This looks good.  I'll find a hunk of time to go through this work
> > > and through Paul's patches.  It'd be good to get both patchsets lined
> > > up in -mm within a couple of weeks.  But..
> > >
> > > We need to decide whether we want to do per-container memory limitation via
> > > these data structures, or whether we do it via a physical scan of some
> > > software zone, possibly based on Mel's patches.
> > i.e. a separate memzone for each container?
>
> Yep.  Straightforward machine partitioning.  An attractive thing is that it
> 100% reuses existing page reclaim, unaltered.

We discussed zones for resource control and some of the disadvantages at
              http://lkml.org/lkml/2006/10/30/222

I need to look at Mel's patches to determine if they are suitable for
control. But in a thread of discussion on those patches, it was agreed
that memory fragmentation and resource control are independent issues.


>
> > imho memzone approach is inconvinient for pages sharing and shares accounting.
> > it also makes memory management more strict, forbids overcommiting
> > per-container etc.
>
> umm, who said they were requirements?
>

We discussed some of the requirements in the RFC: Memory Controller
requirements thread
                                 http://lkml.org/lkml/2006/10/30/51

> > Maybe you have some ideas how we can decide on this?
>
> We need to work out what the requirements are before we can settle on an
> implementation.
>
> Sigh.  Who is running this show?   Anyone?
>

All the stake holders involved in the RFC discussion :-) We've been
talking and building on top of each others patches. I hope that was a
good answer ;)

> You can actually do a form of overcommittment by allowing multiple
> containers to share one or more of the zones.  Whether that is sufficient
> or suitable I don't know.  That depends on the requirements, and we haven't
> even discussed those, let alone agreed to them.
>

There are other things like resizing a zone, finding the right size,
etc. I'll look
at Mel's patches to see what is supported.

Warm Regards,
Balbir Singh

  reply	other threads:[~2007-03-11 15:51 UTC|newest]

Thread overview: 129+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-06 14:42 [RFC][PATCH 0/7] Resource controllers based on process containers Pavel Emelianov
2007-03-06 14:49 ` [RFC][PATCH 1/7] Resource counters Pavel Emelianov
2007-03-07  4:03   ` Balbir Singh
2007-03-07  7:19     ` Pavel Emelianov
2007-03-09 16:37       ` Herbert Poetzl
2007-03-11  9:01         ` Pavel Emelianov
2007-03-11 19:00         ` Eric W. Biederman
2007-03-12  1:16           ` Herbert Poetzl
2007-03-13  9:09             ` Eric W. Biederman
2007-03-13  9:27               ` Pavel Emelianov
2007-03-13  9:49               ` [Devel] " Kirill Korotaev
2007-03-13 15:21               ` Herbert Poetzl
2007-03-13 15:41                 ` Pavel Emelianov
2007-03-13 16:07                   ` Srivatsa Vaddagiri
2007-03-14  7:12                     ` Pavel Emelianov
2007-03-15 16:51                       ` Eric W. Biederman
2007-03-13 16:32                   ` Herbert Poetzl
2007-03-06 14:55 ` [RFC][PATCH 2/7] RSS controller core Pavel Emelianov
2007-03-06 22:00   ` Andrew Morton
2007-03-09 16:48     ` Herbert Poetzl
2007-03-11  9:08       ` Pavel Emelianov
2007-03-11 14:32         ` Herbert Poetzl
2007-03-11 15:04           ` Pavel Emelianov
2007-03-12  0:41             ` Herbert Poetzl
2007-03-12  8:31               ` Pavel Emelianov
2007-03-12  9:55       ` Balbir Singh
2007-03-12 23:43         ` Herbert Poetzl
2007-03-13  1:57           ` Balbir Singh
2007-03-13  2:24             ` Srivatsa Vaddagiri
2007-03-13 16:06             ` Herbert Poetzl
2007-03-11 12:26     ` Kirill Korotaev
2007-03-11 12:51       ` Andrew Morton
2007-03-11 15:51         ` Balbir Singh [this message]
2007-03-11 19:34         ` Eric W. Biederman
2007-03-12  9:23           ` [Devel] " Kirill Korotaev
2007-03-13  9:26             ` Eric W. Biederman
2007-03-13 15:43               ` Kirill Korotaev
2007-03-12  1:00         ` Herbert Poetzl
2007-03-12  9:02           ` Pavel Emelianov
2007-03-12 21:11             ` Herbert Poetzl
2007-03-13  7:17               ` Pavel Emelianov
2007-03-13 15:05                 ` Herbert Poetzl
2007-03-13 15:32                   ` Pavel Emelianov
2007-03-13 15:10               ` Kirill Korotaev
2007-03-13 15:11                 ` Herbert Poetzl
2007-03-13 15:54                   ` Kirill Korotaev
2007-03-12 18:42           ` Dave Hansen
2007-03-12 22:41             ` Herbert Poetzl
2007-03-12 23:02               ` Dave Hansen
2007-03-18 16:58                 ` Eric W. Biederman
2007-03-13  6:04               ` Andrew Morton
2007-03-13 10:19                 ` [Devel] " Kirill Korotaev
2007-03-13 11:48                   ` Andrew Morton
2007-03-13 14:59                     ` Herbert Poetzl
2007-03-13 17:05                     ` Dave Hansen
2007-03-14 15:38                       ` Mel Gorman
2007-03-14 20:42                         ` Dave Hansen
2007-03-20 18:57                           ` Mel Gorman
2007-03-18 22:44                       ` [Devel] " Paul Menage
2007-03-19 17:41                         ` Eric W. Biederman
2007-03-13 17:26                 ` Dave Hansen
2007-03-13 19:09                   ` Alan Cox
2007-03-13 20:28                     ` Dave Hansen
2007-03-16  0:55                     ` Eric W. Biederman
2007-03-16 16:31                       ` Dave Hansen
2007-03-16 18:54                         ` Eric W. Biederman
2007-03-16 19:46                           ` Dave Hansen
2007-03-18 17:42                             ` Eric W. Biederman
2007-03-19 15:48                               ` Herbert Poetzl
2007-03-20 16:15                               ` controlling mmap()'d vs read/write() pages Dave Hansen
2007-03-20 21:19                                 ` Eric W. Biederman
2007-03-23  0:51                                   ` Herbert Poetzl
2007-03-23  5:57                                   ` Nick Piggin
2007-03-23 10:12                                     ` Eric W. Biederman
2007-03-23 10:47                                       ` Nick Piggin
2007-03-23 12:21                                         ` Eric W. Biederman
2007-03-28  7:33                                           ` Nick Piggin
2007-03-23 16:41                                       ` Dave Hansen
2007-03-23 18:16                                         ` Herbert Poetzl
2007-03-28  9:18                                           ` Balbir Singh
2007-03-14 16:47                   ` [RFC][PATCH 2/7] RSS controller core Mel Gorman
2007-03-07  5:37   ` Balbir Singh
2007-03-07  7:27     ` Pavel Emelianov
2007-03-06 14:58 ` [RFC][PATCH 3/7] Data structures changes for RSS accounting Pavel Emelianov
2007-03-11 19:13   ` Eric W. Biederman
2007-03-12 16:16     ` Kirill Korotaev
2007-03-12 16:48       ` Dave Hansen
2007-03-12 17:19         ` Pavel Emelianov
2007-03-12 17:27           ` Dave Hansen
2007-03-13  7:10             ` Pavel Emelianov
2007-03-12 17:21         ` Balbir Singh
2007-03-06 15:00 ` [RFC][PATCH 4/7] RSS accounting hooks over the code Pavel Emelianov
2007-03-11 19:14   ` Eric W. Biederman
2007-03-12 16:23     ` Kirill Korotaev
2007-03-12 16:50       ` Dave Hansen
2007-03-12 17:07         ` Kirill Korotaev
2007-03-12 17:33           ` Dave Hansen
2007-03-13  9:43             ` Eric W. Biederman
2007-03-12 23:54         ` Herbert Poetzl
2007-03-13  9:58           ` Eric W. Biederman
2007-03-13 10:25             ` Nick Piggin
2007-03-13 16:01               ` Eric W. Biederman
2007-03-14  3:51                 ` Nick Piggin
2007-03-14  6:42                   ` Balbir Singh
2007-03-14  6:57                     ` Nick Piggin
2007-03-14  7:48                       ` Balbir Singh
2007-03-14 13:25                         ` Vaidyanathan Srinivasan
2007-03-14 13:49                           ` Nick Piggin
2007-03-14 14:43                             ` Vaidyanathan Srinivasan
2007-03-14 16:16                             ` Kirill Korotaev
2007-03-15  5:01                               ` Nick Piggin
2007-03-15  5:44                                 ` Balbir Singh
2007-03-28 20:15               ` Ethan Solomita
2007-03-14 15:37   ` Cedric Le Goater
2007-03-14 15:45     ` Pavel Emelianov
2007-03-06 15:03 ` [RFC][PATCH 5/7] Per-container OOM killer and page reclamation Pavel Emelianov
2007-03-09 21:21   ` Balbir Singh
2007-03-11  8:41     ` Pavel Emelianov
2007-03-06 15:04 ` [RFC][PATCH 6/7] Account for the number of tasks within container Pavel Emelianov
2007-03-07  2:00   ` Paul Menage
2007-03-07  7:13     ` Pavel Emelianov
2007-03-08 13:49       ` Paul Menage
2007-03-11  8:36         ` Pavel Emelianov
2007-03-06 15:07 ` [RFC][PATCH 7/7] Account for the number of files opened " Pavel Emelianov
2007-03-07  2:02 ` [RFC][PATCH 0/7] Resource controllers based on process containers Paul Menage
2007-03-07  7:30   ` Pavel Emelianov
2007-03-07  6:52 ` Balbir Singh
2007-03-07  7:32   ` Pavel Emelianov
2007-03-07  9:43     ` Kirill Korotaev

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=661de9470703110851h74656692m8d1fd8aa028237d8@mail.gmail.com \
    --to=balbir@in.ibm.com \
    --cc=akpm@linux-foundation.org \
    --cc=containers@lists.osdl.org \
    --cc=dev@sw.ru \
    --cc=devel@openvz.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=menage@google.com \
    --cc=vatsa@in.ibm.com \
    --cc=xemul@sw.ru \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).