Re: GCC 4.1: Buildable on GHz machines only?

[Karel Gardas <kgardas at objectsecurity dot com>]

On Mon, 16 May 2005, DJ Delorie wrote:

> > so I assume setting hard ulimit to 128MB will just result in build
> > process crashing instead of slowdown and swapping,
>
> We would limit physical ram, not virtual ram.  If you do a "man
> setrlimit", I'm talking about RLIMIT_RSS.  The result would be slowing
> down and swapping, not crashing.

But will this really work? For example FreeBSD's manpage says:

``RLIMIT_RSS      The maximum size (in bytes) to which a process's resident
                  set size may grow.  This imposes a limit on the amount of
                  physical memory to be given to a process; if memory is
                  tight, the system will prefer to take memory from pro-
                  cesses that are exceeding their declared resident set
                  size.''

What I have problem understanding is the last sentence of this paragraph 
in the light of your claim that it will results in swapping especially 
when we consider developers' machines with 512MB/1GB RAM, i.e. machines 
where memory is not "tight".

Thanks,
Karel
--
Karel Gardas                  kgardas@objectsecurity.com
ObjectSecurity Ltd.           http://www.objectsecurity.com