From: Mark Mielke <mark@mark.mielke.cc>
To: Maciej Zenczykowski <maze@cela.pl>
Cc: "Ed Sweetman" <ed.sweetman@wmich.edu>,
Witukind <witukind@nsbm.kicks-ass.org>,
"Måns Rullgård" <mru@kth.se>,
linux-kernel@vger.kernel.org
Subject: Re: udev sysfs docs Re: State of devfs in 2.6?
Date: Wed, 10 Dec 2003 20:53:48 -0500 [thread overview]
Message-ID: <20031211015348.GA23489@mark.mielke.cc> (raw)
In-Reply-To: <Pine.LNX.4.44.0312110046350.3331-100000@gaia.cela.pl>
On Thu, Dec 11, 2003 at 12:48:35AM +0100, Maciej Zenczykowski wrote:
> > I'm not saying module use is more memory efficient than not or vice
> > versa, but if memory usage in the 100K range is going to be the only
> > argument for autoloading/unloading of modules then it's really _not_
> > worth the effort unless someone can give that kind of support without
> > trying. Your fight for memory efficiency should start where the
> > inefficiency is the largest, and work it's way down, not the other way
> > around.
> That's not quite true - all kernel memory is statically mapped into ram
> and unswappable. 2 MB's of X will likely end up 80% swapped to disk and
> the rest is in use (and can still be swapped out when no longer needed).
> 100KB of an unused driver will not get swapped out.
> That's where the difference is. As for using small userspace? I do,
> djbdns for dns, twm for window manager etc etc...
I was under the impression, that on the x86 processors, it is not
possible to have more than ~640Kb of 'unswappable' memory. Everything
else *is* swappable.
Perhaps somebody with understanding could enlighten us on this point?
Is kernel code swappable if compiled in statically? I have assumed
that it is.
mark
--
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next prev parent reply other threads:[~2003-12-11 2:23 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-08 15:36 State of devfs in 2.6? Andrew Walrond
2003-12-08 15:42 ` William Lee Irwin III
2003-12-08 15:59 ` Andrew Walrond
2003-12-08 23:38 ` Greg KH
2003-12-09 10:37 ` Andrew Walrond
2003-12-09 10:57 ` Måns Rullgård
2003-12-09 12:54 ` Paul P Komkoff Jr
2003-12-09 5:04 ` Rob Landley
2003-12-08 19:09 ` udev sysfs docs " Bob
2003-12-08 23:37 ` Greg KH
2003-12-09 5:17 ` Witukind
2003-12-09 7:21 ` Bob
2003-12-09 7:39 ` Matthew Reppert
2003-12-09 8:52 ` Måns Rullgård
2003-12-09 9:16 ` Greg KH
2003-12-09 9:45 ` Måns Rullgård
2003-12-09 9:18 ` Greg KH
2003-12-09 9:46 ` Andreas Jellinghaus
2003-12-09 10:25 ` Måns Rullgård
2003-12-09 15:28 ` Andreas Jellinghaus
2003-12-09 20:16 ` Oliver Hunt
2003-12-09 20:53 ` Måns Rullgård
2003-12-09 22:14 ` Olaf Hering
2003-12-09 22:46 ` Oliver Hunt
2003-12-09 23:03 ` Måns Rullgård
2003-12-09 7:56 ` Greg KH
2003-12-09 9:00 ` Xavier Bestel
2003-12-09 9:08 ` Greg KH
2003-12-09 9:19 ` Miles Bader
2003-12-09 9:39 ` Måns Rullgård
2003-12-09 11:01 ` Helge Hafting
2003-12-12 11:26 ` Jamie Lokier
2003-12-12 13:33 ` Duncan Sands
2003-12-12 14:51 ` Jamie Lokier
2003-12-12 16:34 ` Chuck Campbell
2003-12-12 17:13 ` Chris Friesen
2003-12-12 17:17 ` Måns Rullgård
2003-12-15 2:12 ` Miles Bader
2003-12-15 3:51 ` Mark Mielke
2003-12-15 6:09 ` Tim Connors
2003-12-10 19:23 ` Witukind
2003-12-10 19:33 ` Måns Rullgård
2003-12-10 20:22 ` Witukind
2003-12-10 20:47 ` Ed Sweetman
2003-12-10 20:53 ` Ed Sweetman
2003-12-10 21:31 ` Witukind
2003-12-10 21:28 ` Witukind
2003-12-10 21:48 ` Måns Rullgård
2003-12-11 6:31 ` Witukind
2003-12-10 21:49 ` Måns Rullgård
2003-12-10 23:48 ` Maciej Zenczykowski
2003-12-11 1:53 ` Mark Mielke [this message]
2003-12-11 8:42 ` Måns Rullgård
2003-12-11 16:33 ` Mark Mielke
2003-12-10 20:48 ` Måns Rullgård
2003-12-10 23:40 ` Maciej Zenczykowski
2003-12-09 9:55 ` Xavier Bestel
2003-12-09 13:03 ` Maciej Zenczykowski
2003-12-09 15:01 ` Helge Hafting
2003-12-09 18:30 ` Greg KH
2003-12-09 18:53 ` Måns Rullgård
2003-12-10 7:02 ` Xavier Bestel
2003-12-10 20:06 ` Witukind
2003-12-11 9:27 ` Xavier Bestel
2003-12-11 10:15 ` Måns Rullgård
2003-12-11 11:05 ` Xavier Bestel
2003-12-10 0:38 ` Greg KH
2003-12-09 9:26 ` Måns Rullgård
2003-12-09 9:41 ` Miles Bader
2003-12-10 8:13 ` Jakob Oestergaard
2003-12-10 8:24 ` Rob Landley
2003-12-08 23:04 ` Andreas Jellinghaus
2003-12-08 23:34 ` Greg KH
2003-12-09 0:31 ` Sven-Haegar Koch
2003-12-09 0:42 ` Greg KH
2003-12-09 0:51 ` [PATCH] sysfs support for vcs devices (was Re: State of devfs in 2.6?) Greg KH
2003-12-09 5:26 ` State of devfs in 2.6? Rob Landley
2003-12-09 18:19 ` Greg KH
2003-12-09 18:20 ` Greg KH
2003-12-09 7:02 ` Andreas Jellinghaus
2003-12-09 7:13 ` Murray J. Root
2003-12-09 8:21 ` Holger Schurig
2003-12-09 8:52 ` Miles Bader
2003-12-09 10:08 ` Holger Schurig
2003-12-09 17:10 ` Mark Mielke
2003-12-10 5:42 ` Greg KH
2003-12-10 23:29 ` jw schultz
2003-12-11 20:32 ` [2.4.23] cursor dissapears in framebuffer console after switching back from X Witukind
2003-12-11 23:59 ` Gene Heskett
2003-12-12 6:24 ` Witukind
2003-12-09 8:32 ` State of devfs in 2.6? Greg KH
2003-12-09 9:59 ` Jan Dittmer
2003-12-09 13:54 ` Matthew Reppert
2003-12-09 16:27 ` Greg KH
2003-12-09 16:47 ` Eduard Bloch
2003-12-09 19:33 ` Greg KH
2003-12-10 2:15 ` Clemens Schwaighofer
2003-12-10 4:10 ` Bob
2003-12-09 7:33 ` Vojtech Pavlik
2003-12-09 9:48 ` Andreas Jellinghaus
2003-12-08 23:35 ` Greg KH
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