From: George Dunlap <george.dunlap@eu.citrix.com>
To: Juergen Gross <juergen.gross@ts.fujitsu.com>
Cc: Marcus Granado <Marcus.Granado@eu.citrix.com>,
Dan Magenheimer <dan.magenheimer@oracle.com>,
Ian Campbell <Ian.Campbell@citrix.com>,
Anil Madhavapeddy <anil@recoil.org>,
Andrew Cooper <Andrew.Cooper3@citrix.com>,
Dario Faggioli <dario.faggioli@citrix.com>,
Ian Jackson <Ian.Jackson@eu.citrix.com>,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>,
Jan Beulich <JBeulich@suse.com>,
Daniel De Graaf <dgdegra@tycho.nsa.gov>,
Matt Wilson <msw@amazon.com>
Subject: Re: [PATCH 03 of 10 v2] xen: sched_credit: let the scheduler know about node-affinity
Date: Thu, 20 Dec 2012 15:28:58 +0000 [thread overview]
Message-ID: <50D32EBA.4020401@eu.citrix.com> (raw)
In-Reply-To: <50D2CECB.4030108@ts.fujitsu.com>
On 20/12/12 08:39, Juergen Gross wrote:
> Am 20.12.2012 09:33, schrieb Dario Faggioli:
>> On Thu, 2012-12-20 at 08:25 +0000, Juergen Gross wrote:
>>>> BTW, can you be a little bit more specific about where you're suggesting
>>>> to put it? I'm sorry but I'm not sure I figured what you mean by "the
>>>> scheduler private per-pcpu area"... Do you perhaps mean making it a
>>>> member of `struct csched_pcpu' ?
>>> Yes, that's what I would suggest.
>>>
>> Ok then, functionally, that is going to be exactly the same thing as
>> where it is right now, i.e., a set of global per_cpu() variables. It is
>> possible for your solution to bring some cache/locality benefits,
>> although that will very much depends on single cases, architecture,
>> workload, etc.
> The space is only allocated if sched_credit is responsible for the pcpu.
That makes sense.
-George
next prev parent reply other threads:[~2012-12-20 15:28 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-19 19:07 [PATCH 00 of 10 v2] NUMA aware credit scheduling Dario Faggioli
2012-12-19 19:07 ` [PATCH 01 of 10 v2] xen, libxc: rename xenctl_cpumap to xenctl_bitmap Dario Faggioli
2012-12-20 9:17 ` Jan Beulich
2012-12-20 9:35 ` Dario Faggioli
2012-12-19 19:07 ` [PATCH 02 of 10 v2] xen, libxc: introduce node maps and masks Dario Faggioli
2012-12-20 9:18 ` Jan Beulich
2012-12-20 9:55 ` Dario Faggioli
2012-12-20 14:33 ` George Dunlap
2012-12-20 14:52 ` Jan Beulich
2012-12-20 15:13 ` Dario Faggioli
2012-12-19 19:07 ` [PATCH 03 of 10 v2] xen: sched_credit: let the scheduler know about node-affinity Dario Faggioli
2012-12-20 6:44 ` Juergen Gross
2012-12-20 8:16 ` Dario Faggioli
2012-12-20 8:25 ` Juergen Gross
2012-12-20 8:33 ` Dario Faggioli
2012-12-20 8:39 ` Juergen Gross
2012-12-20 8:58 ` Dario Faggioli
2012-12-20 15:28 ` George Dunlap [this message]
2012-12-20 16:00 ` Dario Faggioli
2012-12-20 9:22 ` Jan Beulich
2012-12-20 15:56 ` George Dunlap
2012-12-20 17:12 ` Dario Faggioli
2012-12-20 16:48 ` George Dunlap
2012-12-20 18:18 ` Dario Faggioli
2012-12-21 14:29 ` George Dunlap
2012-12-21 16:07 ` Dario Faggioli
2012-12-20 20:21 ` George Dunlap
2012-12-21 0:18 ` Dario Faggioli
2012-12-21 14:56 ` George Dunlap
2012-12-21 16:13 ` Dario Faggioli
2012-12-19 19:07 ` [PATCH 04 of 10 v2] xen: allow for explicitly specifying node-affinity Dario Faggioli
2012-12-21 15:17 ` George Dunlap
2012-12-21 16:17 ` Dario Faggioli
2013-01-03 16:05 ` Daniel De Graaf
2012-12-19 19:07 ` [PATCH 05 of 10 v2] libxc: " Dario Faggioli
2012-12-21 15:19 ` George Dunlap
2012-12-21 16:27 ` Dario Faggioli
2012-12-19 19:07 ` [PATCH 06 of 10 v2] libxl: " Dario Faggioli
2012-12-21 15:30 ` George Dunlap
2012-12-21 16:18 ` Dario Faggioli
2012-12-21 17:02 ` Ian Jackson
2012-12-21 17:09 ` Dario Faggioli
2012-12-19 19:07 ` [PATCH 07 of 10 v2] libxl: optimize the calculation of how many VCPUs can run on a candidate Dario Faggioli
2012-12-20 8:41 ` Ian Campbell
2012-12-20 9:24 ` Dario Faggioli
2012-12-21 16:00 ` George Dunlap
2012-12-21 16:23 ` Dario Faggioli
2012-12-19 19:07 ` [PATCH 08 of 10 v2] libxl: automatic placement deals with node-affinity Dario Faggioli
2012-12-21 16:22 ` George Dunlap
2012-12-19 19:07 ` [PATCH 09 of 10 v2] xl: add node-affinity to the output of `xl list` Dario Faggioli
2012-12-21 16:34 ` George Dunlap
2012-12-21 16:54 ` Dario Faggioli
2012-12-19 19:07 ` [PATCH 10 of 10 v2] docs: rearrange and update NUMA placement documentation Dario Faggioli
2012-12-19 23:16 ` [PATCH 00 of 10 v2] NUMA aware credit scheduling Dario Faggioli
2013-01-11 12:19 ` Ian Campbell
2013-01-11 13:57 ` Dario Faggioli
2013-01-11 14:09 ` Ian Campbell
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