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From: "Jörn Engel" <joern@logfs.org>
To: Jan Engelhardt <jengelh@medozas.de>
Cc: Maxim Shchetynin <maxim@linux.vnet.ibm.com>,
	linux-fsdevel@vger.kernel.org, Matthew Wilcox <matthew@wil.cx>,
	linux-kernel@vger.kernel.org
Subject: Re: AZFS file system proposal
Date: Tue, 17 Jun 2008 17:51:39 +0200	[thread overview]
Message-ID: <20080617155139.GF28448@logfs.org> (raw)
In-Reply-To: <alpine.LNX.1.10.0806171634040.32473@fbirervta.pbzchgretzou.qr>

On Tue, 17 June 2008 16:36:28 +0200, Jan Engelhardt wrote:
> 
> tmpfs plus XIP

That looks seriously disturbed.  Normal filesystems have a backing store
plus a page cache.  Tmpfs removes the backing store and keeps everything
in the page cache.  XIP removes the page cache and leaves everything in
the backing store - which is memory.

Would tmpfs plus XIP remove both the page cache and the backing store?

Jörn

-- 
Data dominates. If you've chosen the right data structures and organized
things well, the algorithms will almost always be self-evident. Data
structures, not algorithms, are central to programming.
-- Rob Pike

  reply	other threads:[~2008-06-17 15:52 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-09  8:46 AZFS file system proposal Maxim Shchetynin
2008-06-09 12:55 ` Matthew Wilcox
2008-06-10  8:49   ` Maxim Shchetynin
2008-06-10 22:02     ` Jan Engelhardt
2008-06-17  9:06       ` Maxim Shchetynin
2008-06-17  9:35         ` Jan Engelhardt
2008-06-17 10:53           ` Jörn Engel
2008-06-17 14:06             ` Maxim Shchetynin
2008-06-17 14:45               ` Jörn Engel
2008-06-17 11:57           ` Maxim Shchetynin
2008-06-17 14:36             ` Jan Engelhardt
2008-06-17 15:51               ` Jörn Engel [this message]
2008-06-18 11:15               ` Maxim Shchetynin
2008-06-18 20:56                 ` Jörn Engel
2008-06-18 11:21               ` Maxim Shchetynin
2008-06-17 15:02 ` Dmitri Vorobiev
2008-06-18 14:01   ` Maxim Shchetynin
2008-06-18 11:27 ` Christoph Hellwig
2008-06-18 14:03   ` Maxim Shchetynin
  -- strict thread matches above, loose matches on Subject: below --
2008-06-18 14:06 Maxim Shchetynin
2008-07-01 14:59 ` Arnd Bergmann
2008-07-07 15:39   ` Maxim Shchetynin
2008-07-08 14:42     ` Arnd Bergmann
2008-07-09  6:48       ` Benjamin Herrenschmidt
2008-07-09  8:58   ` Benjamin Herrenschmidt
2008-07-09  9:14     ` Maxim Shchetynin
2008-07-09  9:23       ` Benjamin Herrenschmidt
2008-07-09 10:58         ` Maxim Shchetynin

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