All of lore.kernel.org
 help / color / mirror / Atom feed
From: Andrew Morton <akpm@linux-foundation.org>
To: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Paul Menage <menage@google.com>,
	Pavel Emelianov <xemul@openvz.org>,
	Hugh Dickins <hugh@veritas.com>,
	Sudhir Kumar <skumar@linux.vnet.ibm.com>,
	YAMAMOTO Takashi <yamamoto@valinux.co.jp>,
	lizf@cn.fujitsu.com, linux-kernel@vger.kernel.org,
	taka@valinux.co.jp, linux-mm@kvack.org,
	David Rientjes <rientjes@google.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: [PATCH] Move memory controller allocations to their own slabs
Date: Mon, 10 Mar 2008 21:41:00 -0700	[thread overview]
Message-ID: <20080310214100.d7fe7904.akpm@linux-foundation.org> (raw)
In-Reply-To: <20080311043149.20251.50059.sendpatchset@localhost.localdomain>

On Tue, 11 Mar 2008 10:01:49 +0530 Balbir Singh <balbir@linux.vnet.ibm.com> wrote:

> 
> 
> Move the memory controller data structures page_cgroup and
> mem_cgroup_per_zone to their own slab caches. It saves space on the system,
> allocations are not necessarily pushed to order of 2 and should provide
> performance benefits.

eh?  Those structures are tiny.  Which slab allocator has gone and used an
order-2 allocation and for which structure did it (stupidly) do this?



WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@linux-foundation.org>
To: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Paul Menage <menage@google.com>,
	Pavel Emelianov <xemul@openvz.org>,
	Hugh Dickins <hugh@veritas.com>,
	Sudhir Kumar <skumar@linux.vnet.ibm.com>,
	YAMAMOTO Takashi <yamamoto@valinux.co.jp>,
	lizf@cn.fujitsu.com, linux-kernel@vger.kernel.org,
	taka@valinux.co.jp, linux-mm@kvack.org,
	David Rientjes <rientjes@google.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: [PATCH] Move memory controller allocations to their own slabs
Date: Mon, 10 Mar 2008 21:41:00 -0700	[thread overview]
Message-ID: <20080310214100.d7fe7904.akpm@linux-foundation.org> (raw)
In-Reply-To: <20080311043149.20251.50059.sendpatchset@localhost.localdomain>

On Tue, 11 Mar 2008 10:01:49 +0530 Balbir Singh <balbir@linux.vnet.ibm.com> wrote:

> 
> 
> Move the memory controller data structures page_cgroup and
> mem_cgroup_per_zone to their own slab caches. It saves space on the system,
> allocations are not necessarily pushed to order of 2 and should provide
> performance benefits.

eh?  Those structures are tiny.  Which slab allocator has gone and used an
order-2 allocation and for which structure did it (stupidly) do this?


--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

  reply	other threads:[~2008-03-11  4:41 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-11  4:31 [PATCH] Move memory controller allocations to their own slabs Balbir Singh
2008-03-11  4:31 ` Balbir Singh
2008-03-11  4:41 ` Andrew Morton [this message]
2008-03-11  4:41   ` Andrew Morton
2008-03-11  4:45   ` Balbir Singh
2008-03-11  4:45     ` Balbir Singh
2008-03-11  4:45 ` KAMEZAWA Hiroyuki
2008-03-11  4:45   ` KAMEZAWA Hiroyuki
2008-03-11  4:46   ` Balbir Singh
2008-03-11  4:46     ` Balbir Singh
2008-03-11  5:00 ` + KOSAKI Motohiro
2008-03-11  5:00   ` + KOSAKI Motohiro
2008-03-11  5:07   ` + Balbir Singh
2008-03-11  5:07     ` + Balbir Singh

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=20080310214100.d7fe7904.akpm@linux-foundation.org \
    --to=akpm@linux-foundation.org \
    --cc=balbir@linux.vnet.ibm.com \
    --cc=hugh@veritas.com \
    --cc=kamezawa.hiroyu@jp.fujitsu.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=lizf@cn.fujitsu.com \
    --cc=menage@google.com \
    --cc=rientjes@google.com \
    --cc=skumar@linux.vnet.ibm.com \
    --cc=taka@valinux.co.jp \
    --cc=xemul@openvz.org \
    --cc=yamamoto@valinux.co.jp \
    /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.