From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: Igor Mammedov <imammedo@redhat.com>
Cc: qemu-devel@nongnu.org,
Nishanth Aravamudan <nacc@linux.vnet.ibm.com>,
Eduardo Habkost <ehabkost@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [Qemu-devel] [RFC PATCH] numa: enable sparse node numbering
Date: Tue, 24 Jun 2014 18:58:09 +1000 [thread overview]
Message-ID: <53A93DA1.1020203@ozlabs.ru> (raw)
In-Reply-To: <20140624093348.094e6176@nial.usersys.redhat.com>
On 06/24/2014 05:33 PM, Igor Mammedov wrote:
> On Mon, 23 Jun 2014 12:33:10 -0700
> Nishanth Aravamudan <nacc@linux.vnet.ibm.com> wrote:
>
>> Add a present field to NodeInfo which indicates if a given nodeid was
>> present on the command-line or not. Current code relies on a memory
>> value being passed for a node to indicate presence, which is
>> insufficient in the presence of memoryless nodes or sparse numbering.
>> Adjust the iteration of various NUMA loops to use the maximum known NUMA
>> ID rather than the number of NUMA nodes.
> Why would you need sparse numbering?
> What task exactly are you trying to solve?
This is to reproduce+debug the real POWERPC hardware behavior. No practical
use as far as I can tell.
--
Alexey
next prev parent reply other threads:[~2014-06-24 8:58 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-23 19:33 [Qemu-devel] [RFC PATCH] numa: enable sparse node numbering Nishanth Aravamudan
2014-06-24 0:48 ` [Qemu-devel] [RFC PATCH v2] " Nishanth Aravamudan
2014-06-24 1:08 ` [Qemu-devel] [RFC PATCH] ppc/spapr: support sparse NUMA " Nishanth Aravamudan
2014-06-24 3:34 ` Nishanth Aravamudan
2014-06-24 7:43 ` [Qemu-devel] [RFC PATCH v2] numa: enable sparse " Hu Tao
2014-06-24 17:40 ` [Qemu-devel] [RFC PATCH v3] " Nishanth Aravamudan
2014-06-25 11:21 ` Igor Mammedov
2014-06-25 16:13 ` Nishanth Aravamudan
2014-06-25 16:52 ` Eduardo Habkost
2014-06-25 17:04 ` Nishanth Aravamudan
2014-06-25 18:24 ` Michael S. Tsirkin
2014-06-26 6:29 ` Igor Mammedov
2014-06-25 18:23 ` Michael S. Tsirkin
2014-06-26 9:09 ` Hu Tao
2014-06-26 17:58 ` Nishanth Aravamudan
2014-06-26 18:39 ` Eduardo Habkost
2014-06-26 19:37 ` Eduardo Habkost
2014-06-30 18:26 ` Nishanth Aravamudan
2014-06-30 21:48 ` Eduardo Habkost
2014-06-24 7:33 ` [Qemu-devel] [RFC PATCH] " Igor Mammedov
2014-06-24 8:58 ` Alexey Kardashevskiy [this message]
2014-06-24 16:39 ` Nishanth Aravamudan
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=53A93DA1.1020203@ozlabs.ru \
--to=aik@ozlabs.ru \
--cc=ehabkost@redhat.com \
--cc=imammedo@redhat.com \
--cc=mst@redhat.com \
--cc=nacc@linux.vnet.ibm.com \
--cc=qemu-devel@nongnu.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.