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From: Richard Uhtenwoldt <ru@ohio.river.org>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Virtual memory & paging
Date: Sun,  3 Feb 2002 22:21:45 -0800	[thread overview]
Message-ID: <20020203222145.A22998@ohio.river.org> (raw)
In-Reply-To: <20020203231258.8ED7B199E8@mail.cse.psu.edu>; from geoff@collyer.net on Sun, Feb 03, 2002 at 03:08:39PM -0800

On Sun, Feb 03, 2002 at 03:08:39PM -0800, geoff@collyer.net wrote:
> Even if your physical memory were as large as your virtual address
> space, an obvious advantage to mapping addresses is [...]

> Another potential use of mapping is to avoid copying data by remapping
> pages.

Plan 9 has no DLLs.  It has a C runtime library.  I'm sure it's smaller
than the GNU C library, but is there a copy of the libary in every
executable in /bin?  

is there a copy of it in every
process's memory or is it shared among all the processses?

if so, is memory mapping how the sharing is effected?

(I know this is undergrad material.  Let me know if I should stop
asking elementary questions here.)


  parent reply	other threads:[~2002-02-04  6:21 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-02-03 23:08 geoff
2002-02-03 20:26 ` Andrew Simmons
2002-02-04 16:15   ` Ronald G Minnich
2002-02-04  6:21 ` Richard Uhtenwoldt [this message]
  -- strict thread matches above, loose matches on Subject: below --
2002-02-15 14:32 Richard Uhtenwoldt
2002-02-16 21:56 ` Ronald G Minnich
2002-02-05 10:57 geoff
2002-02-05 11:37 ` Boyd Roberts
2002-02-05 14:01 ` david presotto
2002-02-04 11:03 Fco.J.Ballesteros
2002-02-04 10:59 forsyth
2002-02-04 10:38 geoff
2002-02-04 11:16 ` Boyd Roberts
2002-02-04 11:45 ` Boyd Roberts
2002-02-04 17:10   ` Andrew Simmons
2002-02-05 11:17     ` Boyd Roberts
2002-03-30  4:26   ` Richard Maxwell Underwood
2002-02-05  9:53 ` Thomas Bushnell, BSG
2002-02-05 16:06   ` Ronald G Minnich
2002-02-04 10:30 forsyth
2002-02-03 21:53 presotto
2002-02-03 22:36 ` Andrew Simmons
2002-02-03 21:21 rob pike
2002-02-04 21:46 ` skipt
2002-02-04 22:11   ` Ronald G Minnich
     [not found]   ` <Pine.LNX.4.33.0202041510540.4327-100000@snaresland.acl.lan l.gov>
2002-02-05  1:30     ` skipt
2002-02-05 15:32       ` Ronald G Minnich
2002-02-03 21:12 andrey mirtchovski
2002-02-03 21:01 Andrew Simmons

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