[Tfug] Malloc under Linux

[Jude Nelson]

I'm pretty sure Linux uses a JIT allocator.  Try to malloc 10 GB;
nothing bad should happen until you actually start addressing that
memory if this is true.

Regards,
Jude Nelson

On 2/6/08, Terence Rudkin <trudkin at gmail.com> wrote:
> Maybe the question should be,
> Does the free release memory when the program exits or when free is called?
>
> malloc allocates when called.  free marks for removal when called but
> the OS may not reclaim until the allocate memory at the point.   the
> scope in which memory is allocated plays a role in when and how the OS
> will report the freed memory.
>
> HAve more details on  a test case?
>
> TR
>
> On Feb 6, 2008 4:24 AM, Felix Tilley <fetilley at earthlink.net> wrote:
> > When you use the malloc function with Linux, is the memory space
> > allocated when the program runs, or when the malloc function executes?
> >
> > I ask this because the free function does not appear to free any memory.
> >
> > Felix
> >
> >
> >
> > uname -a
> > Linux linux 2.6.16.13-4-default #1 Wed May 3 04:53:23 UTC 2006 i686 i686
> > i386 GNU/Linux
> >
> >
> >
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