Subject: Re: mapping shared memory at a fixed address
To: Eduardo Horvath <eeh@NetBSD.org>
From: Rahul Kulkarni <firstname.lastname@example.org>
Date: 02/08/2005 15:27:05
I meant unecassarily large address space issues due to
--- Eduardo Horvath <eeh@NetBSD.org> wrote:
> On Tue, Feb 08, 2005 at 02:28:47PM -0800, Rahul
> Kulkarni wrote:
> > On a potentially large system with a huge code
> > this cannot work, due to a lot of duplication in
> > text and if if you fork a lot of children then the
> > text sizes will be a concern..
> Huh? We're talking about a demand-paged VM. Unless
> writing to the text segment, it's shared. Forking
> should be
> more efficient than execing since you also get to
> share the shib
> binding goo which would normally be private and COW.
> I suppose you can run into address space issues, but
> has nothing to do with duplication of text pages.
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