linux-mm.kvack.org archive mirror
 help / color / mirror / Atom feed
From: David Hildenbrand <david@redhat.com>
To: Dave Hansen <dave.hansen@intel.com>
Cc: Alexander Duyck <alexander.h.duyck@linux.intel.com>,
	Michal Hocko <mhocko@kernel.org>,
	akpm@linux-foundation.org, aarcange@redhat.com,
	dan.j.williams@intel.com, konrad.wilk@oracle.com,
	lcapitulino@redhat.com, mgorman@techsingularity.net,
	mm-commits@vger.kernel.org, mst@redhat.com, osalvador@suse.de,
	pagupta@redhat.com, pbonzini@redhat.com, riel@surriel.com,
	vbabka@suse.cz, wei.w.wang@intel.com, willy@infradead.org,
	yang.zhang.wz@gmail.com, linux-mm@kvack.org
Subject: Re: + mm-introduce-reported-pages.patch added to -mm tree
Date: Thu, 7 Nov 2019 01:52:05 +0100	[thread overview]
Message-ID: <92C323F0-41BE-4988-8C39-1513FAC40458@redhat.com> (raw)
In-Reply-To: <95a78ac2-73bf-2985-9769-e269e8d13d68@intel.com>



> Am 07.11.2019 um 01:20 schrieb Dave Hansen <dave.hansen@intel.com>:
> 
> On 11/6/19 3:33 PM, David Hildenbrand wrote:
>> We want do discuss *design* and *architecture* here, not
>> *implementation details*.
> 
> Could folks remind me what they see as the high-level design delta
> between these two approaches?
> 
> It seems to me like Alex's approach tries to minimize new metadata, but
> imposes some rules on the internals of the allocator.  Nitesh's is more
> disconnected from the allocator, but has the increased complexity of
> managing some new disjoint metadata.
> 
> Right?

Very right AFAIKS. It’s a matter of where to store new metadata and how to stop the buddy from reusing pages that are currently getting reported.The latter does not spill virt specific optimization stuff into the core buddy, which is why that information has to be tracked differently.

  reply	other threads:[~2019-11-07  0:52 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20191106000547.juQRi83gi%akpm@linux-foundation.org>
2019-11-06 12:16 ` + mm-introduce-reported-pages.patch added to -mm tree Michal Hocko
2019-11-06 14:09   ` David Hildenbrand
2019-11-06 16:35     ` Alexander Duyck
2019-11-06 16:54       ` Michal Hocko
2019-11-06 17:48         ` Alexander Duyck
2019-11-06 22:11           ` Mel Gorman
2019-11-06 23:38             ` David Hildenbrand
2019-11-07  0:20             ` Alexander Duyck
2019-11-07 10:20               ` Mel Gorman
2019-11-07 16:07                 ` Alexander Duyck
2019-11-08  9:43                   ` Mel Gorman
2019-11-08 16:17                     ` Alexander Duyck
2019-11-08 18:41                       ` Mel Gorman
2019-11-08 20:29                         ` Alexander Duyck
2019-11-09 14:57                           ` Mel Gorman
2019-11-10 18:03                             ` Alexander Duyck
2019-11-06 23:33           ` David Hildenbrand
2019-11-07  0:20             ` Dave Hansen
2019-11-07  0:52               ` David Hildenbrand [this message]
2019-11-07 17:12                 ` Dave Hansen
2019-11-07 17:46                   ` Michal Hocko
2019-11-07 18:08                     ` Dave Hansen
2019-11-07 18:12                     ` Alexander Duyck
2019-11-08  9:57                       ` Michal Hocko
2019-11-08 16:43                         ` Alexander Duyck
2019-11-07 18:46                   ` Qian Cai
2019-11-07 18:02             ` Alexander Duyck
2019-11-07 19:37               ` Nitesh Narayan Lal
2019-11-07 22:46                 ` Alexander Duyck
2019-11-07 22:43               ` David Hildenbrand
2019-11-08  0:42                 ` Alexander Duyck
2019-11-08  7:06                   ` David Hildenbrand
2019-11-08 17:18                     ` Alexander Duyck
2019-11-12 13:04                       ` David Hildenbrand
2019-11-12 18:34                         ` Alexander Duyck
2019-11-12 21:05                           ` David Hildenbrand
2019-11-12 22:17                             ` David Hildenbrand
2019-11-12 22:19                             ` Alexander Duyck
2019-11-12 23:10                               ` David Hildenbrand
2019-11-13  0:31                                 ` Alexander Duyck
2019-11-13 18:51                           ` Nitesh Narayan Lal
2019-11-06 16:49   ` Nitesh Narayan Lal
2019-11-11 18:52   ` Nitesh Narayan Lal
2019-11-11 22:00     ` Alexander Duyck
2019-11-12 15:19       ` Nitesh Narayan Lal
2019-11-12 16:18         ` Alexander Duyck
2019-11-13 18:39           ` Nitesh Narayan Lal

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=92C323F0-41BE-4988-8C39-1513FAC40458@redhat.com \
    --to=david@redhat.com \
    --cc=aarcange@redhat.com \
    --cc=akpm@linux-foundation.org \
    --cc=alexander.h.duyck@linux.intel.com \
    --cc=dan.j.williams@intel.com \
    --cc=dave.hansen@intel.com \
    --cc=konrad.wilk@oracle.com \
    --cc=lcapitulino@redhat.com \
    --cc=linux-mm@kvack.org \
    --cc=mgorman@techsingularity.net \
    --cc=mhocko@kernel.org \
    --cc=mm-commits@vger.kernel.org \
    --cc=mst@redhat.com \
    --cc=osalvador@suse.de \
    --cc=pagupta@redhat.com \
    --cc=pbonzini@redhat.com \
    --cc=riel@surriel.com \
    --cc=vbabka@suse.cz \
    --cc=wei.w.wang@intel.com \
    --cc=willy@infradead.org \
    --cc=yang.zhang.wz@gmail.com \
    /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).