From: Sape Mullender <sape@plan9.bell-labs.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] plan 9 overcommits memory?
Date: Mon, 3 Sep 2007 11:28:22 -0400 [thread overview]
Message-ID: <7b27f6e8ba51955a67e7c1997324b21f@plan9.bell-labs.com> (raw)
In-Reply-To: <da4df294e5cb37ddd2dad791d102c205@quanstro.net>
>> It would be cool to be able to get a handle on being able to shrink
>> the memory occupied by an application dynamically. Malloc (through
>> brk()) grows the memory footprint, but free does not shrink it.
>> The same is true for the stack. Once allocated, it doesn't get freed
>> until the process exits.
>
> yes it would. does plan 9 have programs that could make use of this
> currently?
No, and it would be hard to do it because you'd need ways to compact
fragmented memory after a lot of mallocs and frees. And then, you'd
need a way to fix the pointers after compacting.
Sape
next prev parent reply other threads:[~2007-09-03 15:28 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-03 3:38 geoff
2007-09-03 5:35 ` Scott Schwartz
2007-09-03 6:05 ` Uriel
2007-09-03 13:33 ` erik quanstrom
2007-09-03 17:09 ` john
2007-09-03 17:17 ` Gorka Guardiola
2007-09-03 17:25 ` Francisco J Ballesteros
2007-09-03 17:30 ` john
2007-09-03 19:47 ` Charles Forsyth
2007-09-03 19:46 ` Uriel
2007-09-03 19:54 ` Charles Forsyth
2007-09-03 19:54 ` Uriel
2007-09-03 20:34 ` geoff
2007-09-03 20:16 ` erik quanstrom
2007-09-03 17:32 ` erik quanstrom
2007-09-03 17:39 ` Francisco J Ballesteros
2007-09-03 17:43 ` john
2007-09-03 17:45 ` john
2007-09-03 19:52 ` Charles Forsyth
2007-09-05 8:33 ` sqweek
2007-09-04 8:48 ` Douglas A. Gwyn
2007-09-03 18:13 ` geoff
2007-09-03 20:17 ` erik quanstrom
2007-09-03 20:48 ` geoff
2007-09-03 22:01 ` erik quanstrom
2007-09-03 22:43 ` Charles Forsyth
2007-09-03 23:51 ` erik quanstrom
2007-09-04 0:04 ` Charles Forsyth
2007-09-04 14:44 ` erik quanstrom
2007-09-04 15:07 ` Charles Forsyth
2007-09-04 15:18 ` ron minnich
2007-09-04 15:18 ` Charles Forsyth
2007-09-05 8:48 ` Douglas A. Gwyn
2007-09-05 10:53 ` erik quanstrom
2007-09-06 8:42 ` Douglas A. Gwyn
2007-09-06 17:15 ` Joel C. Salomon
2007-09-06 19:38 ` ron minnich
2007-09-06 20:18 ` Charles Forsyth
2007-09-06 23:37 ` Steve Simon
2007-09-07 3:09 ` Roman Shaposhnik
2007-09-07 4:09 ` Bruce Ellis
2007-09-07 4:25 ` Lyndon Nerenberg
2007-09-07 4:37 ` Bruce Ellis
2007-09-07 4:43 ` Lyndon Nerenberg
2007-09-10 15:24 ` roger peppe
2007-09-07 10:55 ` erik quanstrom
2007-09-04 23:32 ` erik quanstrom
2007-09-03 21:16 ` Charles Forsyth
2007-09-03 21:19 ` ron minnich
2007-09-03 21:41 ` Eric Van Hensbergen
2007-09-03 21:51 ` erik quanstrom
2007-09-03 13:21 ` erik quanstrom
2007-09-03 14:01 ` Sape Mullender
2007-09-03 14:32 ` erik quanstrom
2007-09-03 15:28 ` Sape Mullender [this message]
2007-09-04 4:32 ` lucio
2007-09-04 7:23 ` Dave Eckhardt
2007-09-04 8:48 ` Douglas A. Gwyn
-- strict thread matches above, loose matches on Subject: below --
2007-08-31 11:41 erik quanstrom
2007-09-02 21:27 ` Russ Cox
2007-09-03 0:43 ` erik quanstrom
2007-09-04 8:47 ` Douglas A. Gwyn
2007-09-04 13:39 ` David Leimbach
2007-09-04 14:41 ` erik quanstrom
2007-09-04 15:54 ` David Leimbach
2007-09-04 17:37 ` sqweek
2007-09-04 18:10 ` ron minnich
2007-09-04 18:53 ` sqweek
2007-09-03 1:23 ` Scott Schwartz
2007-09-03 1:47 ` ron minnich
2007-09-03 2:11 ` erik quanstrom
2007-09-03 2:11 ` erik quanstrom
2007-09-04 8:48 ` Douglas A. Gwyn
2007-09-03 5:28 ` Scott Schwartz
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