Date: Tue, 13 Jul 1999 10:11:14 -0400 (EDT) From: "Brian F. Feldman" <green@FreeBSD.org> To: Noriyuki Soda <soda@sra.co.jp> Cc: bright@rush.net, dcs@newsguy.com, freebsd-hackers@FreeBSD.org, jon@oaktree.co.uk, tech-userlevel@netbsd.org, tech@openbsd.org Subject: Re: Replacement for grep(1) (part 2) Message-ID: <Pine.BSF.4.10.9907131010360.76301-100000@janus.syracuse.net> In-Reply-To: <199907130912.SAA07964@srapc342.sra.co.jp>
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On Tue, 13 Jul 1999, Noriyuki Soda wrote:
> > You're browsing with netscape and It hits about 32megs in size,
> > you click on a multimedia object and netscape execs a helper app.
>
> If the system has real vfork(2) like NetBSD, this is not problem.
>
> > you also have to consider a program wishing to make sparse use
> > of its address space, without overcommit it becomes impossible.
>
> SVR4 has MAP_NORESERVE option for mmap(2) for this.
> So, default behaivour don't have to be overcommitment.
Isn't that just like mmap()ing then mlock()ing the range? That would
keep it in core.
> --
> soda
>
>
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