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From: Andi Kleen <ak@suse.de>
To: dean gaudet <dean-list-linux-kernel@arctic.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: faster boots?
Date: 05 Apr 2002 10:41:39 +0200	[thread overview]
Message-ID: <p73pu1esfjw.fsf@oldwotan.suse.de> (raw)
In-Reply-To: <3CACEF18.CE742314@zip.com.au.suse.lists.linux.kernel> <Pine.LNX.4.33.0204042330270.10358-100000@twinlark.arctic.org.suse.lists.linux.kernel>

dean gaudet <dean-list-linux-kernel@arctic.org> writes:
> 
> in some ways, the filesystem is the wrong place to do this type of
> activity -- you could approach the problem as a block layer device between
> the fs and the hardware which maintains statistics on access patterns and
> moves blocks around to optimise access time -- which lets you fix all
> sorts of seeking problems.  i guess the challenge would be maintaining a
> map of logical block number to physical block number.  hmm.  guess that's
> kind of hard.

LVM does this already (including the statistics). I guess you could write
a pass to reorganize PEs and make sure that a bootup time the PEs 
are always read completely even when they contain multiple files.

-Andi

       reply	other threads:[~2002-04-05  8:42 UTC|newest]

Thread overview: 77+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <3CACEF18.CE742314@zip.com.au.suse.lists.linux.kernel>
     [not found] ` <Pine.LNX.4.33.0204042330270.10358-100000@twinlark.arctic.org.suse.lists.linux.kernel>
2002-04-05  8:41   ` Andi Kleen [this message]
     [not found] <Pine.LNX.4.33.0204051403200.7124-100000@mhw.ULib.IUPUI.Edu >
2002-04-07 20:10 ` faster boots? Stevie O
2002-04-06 17:53 Re: " Alan Cox
2002-04-06 19:01 ` Joe
  -- strict thread matches above, loose matches on Subject: below --
2002-04-05 18:23 Torrey Hoffman
2002-04-05  8:00 willy tarreau
2002-04-05 13:06 ` Bill Davidsen
2002-04-05 13:21   ` willy tarreau
2002-04-05 15:29     ` Bill Davidsen
2002-04-05 16:20       ` willy tarreau
2002-04-05 23:10     ` Itai Nahshon
2002-04-05  2:10 joeja
2002-04-05  7:44 ` Helge Hafting
2002-04-05 12:13   ` Thomas 'Dent' Mirlacher
2002-04-05 15:14   ` Luigi Genoni
2002-04-04 23:54 joeja
2002-04-05  0:21 ` Alan Cox
2002-04-05  1:00   ` Jeremy Jackson
2002-04-05  0:26 ` Andrew Morton
2002-04-05  2:18   ` Richard Gooch
2002-04-05  2:51     ` Andrew Morton
2002-04-05  3:00       ` Benjamin LaHaise
2002-04-05  3:21         ` Alan Cox
2002-04-05  5:38           ` Richard Gooch
2002-04-05 12:49             ` Alan Cox
2002-04-05 16:33               ` Richard Gooch
2002-04-05 23:02               ` Itai Nahshon
2002-04-05 23:07                 ` Benjamin LaHaise
2002-04-06  0:07                   ` Itai Nahshon
2002-04-06  0:29                     ` Benjamin LaHaise
2002-04-07 14:42                     ` Pavel Machek
2002-04-08  0:48                       ` Itai Nahshon
2002-04-08  0:57                         ` Richard Gooch
2002-04-08  1:14                           ` Andrew Morton
2002-04-08  4:17                             ` Andre Hedrick
2002-04-08  9:57                             ` Pavel Machek
2002-04-08 16:43                               ` Jamie Lokier
2002-04-08 16:48                                 ` Benjamin LaHaise
2002-04-08 21:09                                   ` Pavel Machek
2002-04-09  0:56                                   ` Jamie Lokier
2002-04-09 22:22                                     ` Pavel Machek
2002-04-12 10:44                                       ` Jamie Lokier
2002-04-12 11:42                                         ` Pavel Machek
2002-04-12 14:29                                           ` Jamie Lokier
2002-04-14 19:40                                             ` Pavel Machek
2002-04-15 13:34                                             ` Philipp Matthias Hahn
2002-04-08 17:08                             ` Mark Mielke
2002-04-08 17:49                               ` Rene Rebe
2002-04-08 18:02                                 ` G . Sumner Hayes
2002-04-08  6:02                           ` Oliver Neukum
2002-04-08 17:06                             ` Richard Gooch
2002-04-08 16:13                               ` Martin Dalecki
2002-04-08 15:16                           ` Bill Davidsen
2002-04-08 17:32                             ` Richard Gooch
2002-04-08 18:31                               ` Bill Davidsen
2002-04-08 18:40                                 ` David Lang
2002-04-08 18:56                                   ` Richard B. Johnson
2002-04-08 19:06                                     ` David Lang
2002-04-08 19:27                                       ` Richard B. Johnson
2002-04-08  8:03                         ` Helge Hafting
2002-04-08 12:38                           ` Rogier Wolff
2002-04-08 14:41                           ` Bill Davidsen
2002-04-08  9:55                         ` Pavel Machek
2002-04-08 12:15                         ` Rogier Wolff
2002-04-08 12:09                     ` Rogier Wolff
2002-04-05  6:14           ` Eric W. Biederman
2002-04-05 12:45             ` Alan Cox
2002-04-05 13:04         ` Bill Davidsen
2002-04-05 21:33           ` Benjamin LaHaise
2002-04-05  5:26       ` Richard Gooch
2002-04-05  7:45   ` dean gaudet
2002-04-05 18:43     ` Jeremy Jackson
2002-04-05  0:44 ` Piotr Esden-Tempski
2002-04-05 13:37   ` Mauricio Nuñez
2002-04-05  1:11 ` Ross Vandegrift
2002-04-05  1:55 ` Bernd Eckenfels
2002-04-05 12:56 ` Bill Davidsen
2002-04-10  1:20   ` Mike Touloumtzis
2002-04-05 19:08 ` Mark H. Wood

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