lkml.org 
[lkml]   [2006]   [Sep]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    From
    Date
    On Tue, 2006-09-05 at 19:02 +0400, Kirill Korotaev wrote:
    > Core Resource Beancounters (BC) + kernel/user memory control.
    >
    > BC allows to account and control consumption
    > of kernel resources used by group of processes.

    Hi Kirill,

    I've honestly lost track of these discussions along the way, so I hope
    you don't mind summarizing a bit.

    Do these patches help with accounting for anything other than memory?
    Will we need new user/kernel interfaces for cpu, i/o bandwidth, etc...?

    Have you given any thought to the possibility that a task might need to
    move between accounting contexts? That has certainly been a
    "requirement" pushed on to CKRM for a long time, and the need goes
    something like this:

    1. A system runs a web server, which services several virtual domains
    2. that web server receives a request for foo.com
    3. the web server switches into foo.com's accounting context
    4. the web server reads things from disk, allocates some memory, and
    makes a database request.
    5. the database receives the request, and switches into foo.com's
    accounting context, and charges foo.com for its resource use
    etc...

    So, the goal is to run _one_ copy of an application on a system, but
    account for its resources in a much more fine-grained way than at the
    application level.

    I think we can probably use beancounters for this, if we do not worry
    about migrating _existing_ charges when we change accounting context.
    Does that make sense?

    -- Dave

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2006-09-05 19:49    [W:0.027 / U:58.784 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site