All of lore.kernel.org
 help / color / mirror / Atom feed
From: David Vrabel <david.vrabel@citrix.com>
To: George Dunlap <dunlapg@umich.edu>
Cc: Jan Beulich <JBeulich@suse.com>, Yechen Li <lccycc123@gmail.com>,
	Dario Faggioli <dario.faggioli@citrix.com>,
	Ian Jackson <Ian.Jackson@eu.citrix.com>,
	"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>,
	Ian Campbell <Ian.Campbell@eu.citrix.com>,
	ufimtseva@gmail.com
Subject: Re: [RFC v2][PATCH 1/3] docs: design and intended usage for NUMA-aware ballooning
Date: Tue, 20 Aug 2013 15:20:26 +0100	[thread overview]
Message-ID: <52137B2A.5010105@citrix.com> (raw)
In-Reply-To: <CAFLBxZYnhsCVDanb=3H-GBsBdV+29r19H0Tk7zms-PsVaDRnQw@mail.gmail.com>

On 19/08/13 14:26, George Dunlap wrote:
> On Mon, Aug 19, 2013 at 1:58 PM, David Vrabel <david.vrabel@citrix.com> wrote:
>> If we decide we do need such control, I think the xenstore interface
>> should look more like:
>>
>> memory/target
>>
>>   as before
>>
>> memory/target-by-nid/0
>>
>>   target for virtual node 0
>>
>> ...
>>
>> memory/target-by-nid/N
>>
>>   target for virtual node N
>>
>> I think this better reflects the goal which is an adjusted NUMA layout
>> for the guest rather than the steps required to reach it (release P
>> pages from node N).
> 
> This seems more sensible than a mask (as Jan suggested); but is it
> open to race conditions?

xenstore transactions could be used to make the reads/writes of the set
of values atomic.

David

  reply	other threads:[~2013-08-20 14:20 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-16  4:13 [RFC v2][PATCH 1/3] docs: design and intended usage for NUMA-aware ballooning Yechen Li
2013-08-16  9:09 ` Jan Beulich
2013-08-16 10:18   ` Li Yechen
     [not found]   ` <CAP5+zHQ128UVGsGjxsNdvSOupt42Gue2+1nLVg-KYrb=exqqCw@mail.gmail.com>
2013-08-16 13:21     ` Jan Beulich
2013-08-16 14:17       ` Li Yechen
2013-08-16 14:55         ` Jan Beulich
2013-08-16 22:53       ` Dario Faggioli
2013-08-19  9:22         ` Jan Beulich
2013-08-20 14:18           ` Dario Faggioli
2013-08-16 23:30   ` Dario Faggioli
2013-08-19  9:17     ` Jan Beulich
2013-08-20 14:05       ` Dario Faggioli
2013-08-20 14:24         ` Jan Beulich
2013-08-19 11:05   ` George Dunlap
2013-08-20 14:31     ` Dario Faggioli
2013-08-19 12:58 ` David Vrabel
2013-08-19 13:26   ` George Dunlap
2013-08-20 14:20     ` David Vrabel [this message]
2013-08-20 14:55   ` Dario Faggioli
2013-08-20 15:15   ` Li Yechen
2013-08-25 21:24     ` Dario Faggioli
2013-09-26 14:15       ` Li Yechen
2013-09-26 14:15         ` Li Yechen
2013-08-23 20:53   ` Konrad Rzeszutek Wilk
2013-08-25 21:18     ` Dario Faggioli

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=52137B2A.5010105@citrix.com \
    --to=david.vrabel@citrix.com \
    --cc=Ian.Campbell@eu.citrix.com \
    --cc=Ian.Jackson@eu.citrix.com \
    --cc=JBeulich@suse.com \
    --cc=dario.faggioli@citrix.com \
    --cc=dunlapg@umich.edu \
    --cc=lccycc123@gmail.com \
    --cc=ufimtseva@gmail.com \
    --cc=xen-devel@lists.xen.org \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.