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From: Ed Tomlinson <edt@aei.ca>
To: Valdis.Kletnieks@vt.edu
Cc: John Stoffel <john@stoffel.org>,
	Dan Magenheimer <dan.magenheimer@oracle.com>,
	Johannes Weiner <jweiner@redhat.com>,
	Pekka Enberg <penberg@kernel.org>,
	Cyclonus J <cyclonusj@gmail.com>,
	Sasha Levin <levinsasha928@gmail.com>,
	Christoph Hellwig <hch@infradead.org>,
	David Rientjes <rientjes@google.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Konrad Wilk <konrad.wilk@oracle.com>,
	Jeremy Fitzhardinge <jeremy@goop.org>,
	Seth Jennings <sjenning@linux.vnet.ibm.com>,
	ngupta@vflare.org, Chris Mason <chris.mason@oracle.com>,
	JBeulich@novell.com, Dave Hansen <dave@linux.vnet.ibm.com>,
	Jonathan Corbet <corbet@lwn.net>
Subject: Re: [GIT PULL] mm: frontswap (for 3.2 window)
Date: Tue, 08 Nov 2011 07:15:04 -0500	[thread overview]
Message-ID: <15917317.H6lYS7chMM@grover> (raw)
In-Reply-To: <201529.1320618774@turing-police.cc.vt.edu>

On Sunday 06 November 2011 17:32:54 Valdis.Kletnieks@vt.edu wrote:
> On Fri, 28 Oct 2011 16:52:28 EDT, John Stoffel said:
> > Dan> "WHY" this is such a good idea is the same as WHY it is useful to
> > Dan> add RAM to your systems. 
> >
> > So why would I use this instead of increasing the physical RAM?
> 
> You're welcome to buy me a new laptop that has a third DIMM slot. :)
> 
> There's a lot of people running hardware that already has the max amount of
> supported RAM, and who for budget or legacy-support reasons can't easily do a
> forklift upgrade to a new machine.

I've got three boxes with this problem here.  Hense my support for frontswap/cleancache.

Ed

> > if I've got a large system which cannot physically use any more
> > memory, then it might be worth my while to use TMEM to get more
> > performance out of this expensive hardware.
> 
> It's not always a large system....

WARNING: multiple messages have this Message-ID (diff)
From: Ed Tomlinson <edt@aei.ca>
To: Valdis.Kletnieks@vt.edu
Cc: John Stoffel <john@stoffel.org>,
	Dan Magenheimer <dan.magenheimer@oracle.com>,
	Johannes Weiner <jweiner@redhat.com>,
	Pekka Enberg <penberg@kernel.org>,
	Cyclonus J <cyclonusj@gmail.com>,
	Sasha Levin <levinsasha928@gmail.com>,
	Christoph Hellwig <hch@infradead.org>,
	David Rientjes <rientjes@google.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Konrad Wilk <konrad.wilk@oracle.com>,
	Jeremy Fitzhardinge <jeremy@goop.org>,
	Seth Jennings <sjenning@linux.vnet.ibm.com>,
	ngupta@vflare.org, Chris Mason <chris.mason@oracle.com>,
	JBeulich@novell.com, Dave Hansen <dave@linux.vnet.ibm.com>,
	Jonathan Corbet <corbet@lwn.net>
Subject: Re: [GIT PULL] mm: frontswap (for 3.2 window)
Date: Tue, 08 Nov 2011 07:15:04 -0500	[thread overview]
Message-ID: <15917317.H6lYS7chMM@grover> (raw)
In-Reply-To: <201529.1320618774@turing-police.cc.vt.edu>

On Sunday 06 November 2011 17:32:54 Valdis.Kletnieks@vt.edu wrote:
> On Fri, 28 Oct 2011 16:52:28 EDT, John Stoffel said:
> > Dan> "WHY" this is such a good idea is the same as WHY it is useful to
> > Dan> add RAM to your systems. 
> >
> > So why would I use this instead of increasing the physical RAM?
> 
> You're welcome to buy me a new laptop that has a third DIMM slot. :)
> 
> There's a lot of people running hardware that already has the max amount of
> supported RAM, and who for budget or legacy-support reasons can't easily do a
> forklift upgrade to a new machine.

I've got three boxes with this problem here.  Hense my support for frontswap/cleancache.

Ed

> > if I've got a large system which cannot physically use any more
> > memory, then it might be worth my while to use TMEM to get more
> > performance out of this expensive hardware.
> 
> It's not always a large system....

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  reply	other threads:[~2011-11-08 12:15 UTC|newest]

Thread overview: 175+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-27 18:52 [GIT PULL] mm: frontswap (for 3.2 window) Dan Magenheimer
2011-10-27 18:52 ` Dan Magenheimer
     [not found] ` <alpine.DEB.2.00.1110271318220.7639@chino.kir.corp.google.com20111027211157.GA1199@infradead.org>
2011-10-27 19:30 ` Kurt Hackel
2011-10-27 19:30   ` Kurt Hackel
2011-10-27 20:18 ` David Rientjes
2011-10-27 20:18   ` David Rientjes
2011-10-27 21:11   ` Christoph Hellwig
2011-10-27 21:11     ` Christoph Hellwig
2011-10-27 21:49     ` Dan Magenheimer
2011-10-27 21:49       ` Dan Magenheimer
2011-10-27 21:52       ` Christoph Hellwig
2011-10-27 21:52         ` Christoph Hellwig
2011-10-27 22:21         ` Dan Magenheimer
2011-10-27 22:21           ` Dan Magenheimer
2011-10-28  7:12         ` Sasha Levin
2011-10-28  7:12           ` Sasha Levin
     [not found]           ` <CAOzbF4fnD=CGR-nizZoBxmFSuAjFC3uAHf3wDj5RLneJvJhrOQ@mail.gmail.comCAOJsxLGOTw7rtFnqeHvzFxifA0QgPVDHZzrEo=-uB2Gkrvp=JQ@mail.gmail.com>
     [not found]             ` <552d2067-474d-4aef-a9a4-89e5fd8ef84f@default20111031181651.GF3466@redhat.com>
     [not found]               ` <60592afd-97aa-4eaf-b86b-f6695d31c7f1@default20111031223717.GI3466@redhat.com>
     [not found]                 ` <1b2e4f74-7058-4712-85a7-84198723e3ee@default20111101012017.GJ3466@redhat.com>
     [not found]                   ` <6a9db6d9-6f13-4855-b026-ba668c29ddfa@default20111101180702.GL3466@redhat.com>
     [not found]                     ` <b8a0ca71-a31b-488a-9a92-2502d4a6e9bf@default20111102013122.GA18879@redhat.com>
2011-10-28  7:30           ` Cyclonus J
2011-10-28  7:30             ` Cyclonus J
2011-10-28 14:26             ` Pekka Enberg
2011-10-28 14:26               ` Pekka Enberg
2011-10-28 15:21               ` Dan Magenheimer
2011-10-28 15:21                 ` Dan Magenheimer
     [not found]                 ` <CAOJsxLEE-qf9me1SAZLFiEVhHVnDh7BDrSx1+abe9R4mfkhD=g@mail.gmail.com20111028163053.GC1319@redhat.com>
2011-10-28 15:36                 ` Pekka Enberg
2011-10-28 15:36                   ` Pekka Enberg
2011-10-28 16:30                   ` Johannes Weiner
2011-10-28 16:30                     ` Johannes Weiner
2011-10-28 17:01                     ` Pekka Enberg
2011-10-28 17:01                       ` Pekka Enberg
2011-10-28 17:07                     ` Dan Magenheimer
2011-10-28 17:07                       ` Dan Magenheimer
2011-10-28 18:28                       ` John Stoffel
2011-10-28 18:28                         ` John Stoffel
2011-10-28 20:19                         ` Dan Magenheimer
2011-10-28 20:19                           ` Dan Magenheimer
2011-10-28 20:52                           ` John Stoffel
2011-10-28 20:52                             ` John Stoffel
2011-10-30 19:18                             ` Dan Magenheimer
2011-10-30 19:18                               ` Dan Magenheimer
2011-10-30 20:06                               ` Dave Hansen
2011-10-30 20:06                                 ` Dave Hansen
2011-10-30 21:50                                 ` Dan Magenheimer
2011-10-30 21:50                                   ` Dan Magenheimer
2011-11-02 19:45                                 ` Rik van Riel
2011-11-02 19:45                                   ` Rik van Riel
2011-11-02 20:45                                   ` Dan Magenheimer
2011-11-02 20:45                                     ` Dan Magenheimer
2011-11-06 22:32                             ` Valdis.Kletnieks
2011-11-08 12:15                               ` Ed Tomlinson [this message]
2011-11-08 12:15                                 ` Ed Tomlinson
2011-10-31  8:12                           ` James Bottomley
2011-10-31  8:12                             ` James Bottomley
2011-10-31 15:39                             ` Dan Magenheimer
2011-10-31 15:39                               ` Dan Magenheimer
2011-11-01 10:13                               ` James Bottomley
2011-11-01 10:13                                 ` James Bottomley
2011-11-01 18:10                                 ` Dan Magenheimer
2011-11-01 18:10                                   ` Dan Magenheimer
2011-11-01 18:48                                   ` Dave Hansen
2011-11-01 18:48                                     ` Dave Hansen
2011-11-01 21:32                                     ` Dan Magenheimer
2011-11-01 21:32                                       ` Dan Magenheimer
2011-11-02  7:44                                   ` James Bottomley
2011-11-02  7:44                                     ` James Bottomley
2011-11-02 19:39                                     ` Dan Magenheimer
2011-11-02 19:39                                       ` Dan Magenheimer
2011-10-31 18:44                         ` Andrea Arcangeli
2011-10-31 18:44                           ` Andrea Arcangeli
2011-10-30 21:47                       ` Johannes Weiner
2011-10-30 21:47                         ` Johannes Weiner
2011-10-30 23:19                         ` Dan Magenheimer
2011-10-30 23:19                           ` Dan Magenheimer
2011-10-31 18:34                       ` Andrea Arcangeli
2011-10-31 18:34                         ` Andrea Arcangeli
2011-10-31 21:45                         ` Dan Magenheimer
2011-10-31 21:45                           ` Dan Magenheimer
2011-10-28 16:37                   ` Dan Magenheimer
2011-10-28 16:37                     ` Dan Magenheimer
2011-10-28 16:59                     ` Pekka Enberg
2011-10-28 16:59                       ` Pekka Enberg
2011-10-28 17:20                       ` Dan Magenheimer
2011-10-28 17:20                         ` Dan Magenheimer
2011-10-31 18:16                 ` Andrea Arcangeli
2011-10-31 18:16                   ` Andrea Arcangeli
2011-10-31 20:58                   ` Dan Magenheimer
2011-10-31 20:58                     ` Dan Magenheimer
2011-10-31 22:37                     ` Andrea Arcangeli
2011-10-31 22:37                       ` Andrea Arcangeli
2011-10-31 23:36                       ` Dan Magenheimer
2011-10-31 23:36                         ` Dan Magenheimer
2011-11-01  1:20                         ` Andrea Arcangeli
2011-11-01  1:20                           ` Andrea Arcangeli
2011-11-01 16:41                           ` Dan Magenheimer
2011-11-01 16:41                             ` Dan Magenheimer
2011-11-01 18:07                             ` Andrea Arcangeli
2011-11-01 18:07                               ` Andrea Arcangeli
2011-11-01 21:00                               ` Dan Magenheimer
2011-11-01 21:00                                 ` Dan Magenheimer
2011-11-02  1:31                                 ` Andrea Arcangeli
2011-11-02  1:31                                   ` Andrea Arcangeli
2011-11-02 19:06                                   ` Dan Magenheimer
2011-11-02 19:06                                     ` Dan Magenheimer
2011-11-03  0:32                                     ` Andrea Arcangeli
2011-11-03  0:32                                       ` Andrea Arcangeli
2011-11-03 22:29                                       ` Dan Magenheimer
2011-11-03 22:29                                         ` Dan Magenheimer
2011-11-02 20:51                         ` Rik van Riel
2011-11-02 20:51                           ` Rik van Riel
2011-11-02 21:14                           ` Dan Magenheimer
2011-11-02 21:14                             ` Dan Magenheimer
2011-11-15 16:29                             ` Rik van Riel
2011-11-15 16:29                               ` Rik van Riel
2011-11-15 17:33                               ` Jeremy Fitzhardinge
2011-11-15 17:33                                 ` Jeremy Fitzhardinge
2011-11-16 14:49                                 ` Konrad Rzeszutek Wilk
2011-11-16 14:49                                   ` Konrad Rzeszutek Wilk
2011-11-01 10:16                   ` James Bottomley
2011-11-01 10:16                     ` James Bottomley
2011-11-01 18:21                     ` Dan Magenheimer
2011-11-01 18:21                       ` Dan Magenheimer
2011-11-02  8:14                       ` James Bottomley
2011-11-02  8:14                         ` James Bottomley
2011-11-02 20:08                         ` Dan Magenheimer
2011-11-02 20:08                           ` Dan Magenheimer
2011-11-03 10:30                           ` Theodore Tso
2011-11-03 10:30                             ` Theodore Tso
2011-11-03 14:59                             ` Dan Magenheimer
2011-11-03 14:59                               ` Dan Magenheimer
2011-11-02 15:44                     ` Avi Kivity
2011-11-02 15:44                       ` Avi Kivity
2011-11-02 16:02                       ` Andrea Arcangeli
2011-11-02 16:02                         ` Andrea Arcangeli
2011-11-02 16:13                         ` Avi Kivity
2011-11-02 16:13                           ` Avi Kivity
2011-11-02 20:27                           ` Dan Magenheimer
2011-11-02 20:27                             ` Dan Magenheimer
2011-11-02 20:19                       ` Dan Magenheimer
2011-11-02 20:19                         ` Dan Magenheimer
2011-10-27 21:44 ` Avi Miller
2011-10-27 21:44   ` Avi Miller
2011-10-27 22:33 ` Brian King
2011-10-27 22:33   ` Brian King
2011-10-28  5:17 ` Nitin Gupta
2011-10-28  5:17   ` Nitin Gupta
2011-10-29 13:43 ` Ed Tomlinson
2011-10-29 13:43   ` Ed Tomlinson
2011-10-31  8:13 ` KAMEZAWA Hiroyuki
2011-10-31  8:13   ` KAMEZAWA Hiroyuki
2011-10-31 16:38   ` Dan Magenheimer
2011-10-31 16:38     ` Dan Magenheimer
2011-11-01  0:50     ` KAMEZAWA Hiroyuki
2011-11-01  0:50       ` KAMEZAWA Hiroyuki
2011-11-01 15:25       ` Dan Magenheimer
2011-11-01 15:25         ` Dan Magenheimer
2011-11-01 21:43         ` Andrew Morton
2011-11-01 21:43           ` Andrew Morton
2011-11-01 22:25           ` Dan Magenheimer
2011-11-01 22:25             ` Dan Magenheimer
2011-11-02 21:03           ` Rik van Riel
2011-11-02 21:03             ` Rik van Riel
2011-11-02 21:42             ` Dan Magenheimer
2011-11-02 21:42               ` Dan Magenheimer
2011-11-02  1:14         ` KAMEZAWA Hiroyuki
2011-11-02  1:14           ` KAMEZAWA Hiroyuki
2011-11-02 15:12           ` Dan Magenheimer
2011-11-02 15:12             ` Dan Magenheimer
2011-11-04  4:19             ` KAMEZAWA Hiroyuki
2011-11-04  4:19               ` KAMEZAWA Hiroyuki
2011-11-03 16:49 ` Jan Beulich
2011-11-03 16:49   ` Jan Beulich
2011-11-04  0:54   ` Andrew Morton
2011-11-04  0:54     ` Andrew Morton
2011-11-04  8:49     ` Jan Beulich
2011-11-04  8:49       ` Jan Beulich
  -- strict thread matches above, loose matches on Subject: below --
2011-11-04 12:37 Clayton Weaver
2011-11-05 17:08 Clayton Weaver

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