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From: Andrew Morton <akpm@osdl.org>
To: Badari Pulavarty <pbadari@us.ibm.com>
Cc: mail@dirk-gerdes.de, axboe@suse.de, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/4] linux-2.6-block: deactivating pagecache for benchmarks
Date: Fri, 2 Dec 2005 13:44:31 -0800	[thread overview]
Message-ID: <20051202134431.005de2b2.akpm@osdl.org> (raw)
In-Reply-To: <1133558692.21429.89.camel@localhost.localdomain>

Badari Pulavarty <pbadari@us.ibm.com> wrote:
>
> Wondering, if this shrinks shared memory pages (since they are backed by
> tmpfs) ? (which is not what I want).

It'll reclaim unused pagecache pages.  What effect that has on
idioticfs^Wtmpfs pages depends on the state of the pages.  If they're
attached to tmpfs inodes then they won't be reclaimed because they have no
backing store.  If they're attached to swapcache then they won't be
reclaimed because they have no superblock.

So I guess you got lucky.

  reply	other threads:[~2005-12-02 21:43 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-01 13:17 [PATCH 0/4] linux-2.6-block: deactivating pagecache for benchmarks Dirk Henning Gerdes
2005-12-01 13:29 ` Arjan van de Ven
2005-12-01 13:43   ` Dirk Henning Gerdes
2005-12-01 14:36 ` Jens Axboe
2005-12-02  1:25 ` Andrew Morton
2005-12-02  1:34   ` Jeff Garzik
2005-12-02 19:19     ` Badari Pulavarty
2005-12-02 19:17   ` Badari Pulavarty
2005-12-02 21:24   ` Badari Pulavarty
2005-12-02 21:44     ` Andrew Morton [this message]
2005-12-02 22:33       ` Badari Pulavarty
2005-12-05  2:13   ` Rob Landley
2005-12-05 16:20     ` Lee Revell
2005-12-05 17:28       ` Rob Landley
2005-12-05 16:54   ` Badari Pulavarty
     [not found] <5f08L-Um-413@gated-at.bofh.it>
2005-12-01 22:48 ` Bodo Eggert
     [not found] ` <5f7UE-3FH-13@gated-at.bofh.it>
2005-12-03  2:05   ` Bodo Eggert

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