Re: 2.5.64-mm6

[Roger Larsson <roger.larsson@norran.net>]

On Thursday 13 March 2003 20:34, Andrew Morton wrote:
> Jeremy Fitzhardinge <jeremy@goop.org> wrote:
> >
> > On Thu, 2003-03-13 at 03:26, Andrew Morton wrote:
> > >   This means that when an executable is first mapped in, the kernel will
> > >   slurp the whole thing off disk in one hit.  Some IO changes were made 
> > >   to speed this up.
> > 
> > Does this just pull in text and data, or will it pull any debug sections
> > too?  That could fill memory with a lot of useless junk.
> > 
> 
> Just text, I expect.  Unless glibc is mapping debug info with PROT_EXEC ;)
> 
> It's just a fun hack.  Should be done in glibc.
> 

Are you sure? This is most useful during startup of system/programs, at that 
time you usually have LOTS of free memory. Later when there are less free
memory or your computer is on a memory budget it should not load it all.

Can the application decide? Should it?

/RogerL

-- 
Roger Larsson
Skellefteċ
Sweden

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