Mail Archives: cygwin/2003/02/12/12:37:09
This is the sort of answer I was looking for. Thank you very much (and also
to others who replied with the same answer). This gets me a little more
headroom.
The next problem: even if I set heap_chunk_in_mb to 2048, it still will
only allocate up to a bit more than 1GB. If I set it to 4096 Mb, I can't
run a bash shell anymore.
Any more ideas?
cheers,
Kris
----- Original Message -----
From: "Ronald Landheer-Cieslak" <ronald AT landheer DOT com>
To: "Kris Warkentin" <kewarken AT qnx DOT com>
Cc: <dl AT cs DOT oswego DOT edu>; <cygwin AT cygwin DOT com>
Sent: Wednesday, February 12, 2003 12:01 PM
Subject: Re: Malloc failing too soon under XP/2000
> Charles Werner explains this pretty well in:
> http://sources.redhat.com/ml/cygwin/2003-02/msg00234.html
> he also explains how to change the settings
>
> ciao
>
> rlc
>
> On Wed, 12 Feb 2003, Kris Warkentin wrote:
>
> > I'm running Windows XP with 1/2GB RAM and 2GB swap. Running Cygwin
1.3.18.
> > Consider the following program to use as much memory as possible:
> >
> > #include <stdio.h>
> > #include <malloc.h>
> >
> > int
> > main()
> > {
> > void *x;
> > unsigned long long mem=0;
> >
> > while((x=malloc(500000)) != NULL){
> > mem += 500000;
> > memset(x, 0, 500000);
> > printf("allocated %u\n", mem);
> > }
> > return 0;
> > }
> >
> > If I compile and run this, it consistently stops at about 780MB. If I
> > compile with -mno-cygwin, it doesn't fail until almost 2GB have been
> > allocated.
> >
> > Any comment? Is there some sort of flag I can compile with to make the
> > allocator more aggressive? The situation it's failing in is one where a
> > very large library is being linked and ld is running out of memory in
spite
> > of quite a bit being available.
> >
> > cheers,
> >
> > Kris
> >
> >
> > --
> > Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
> > Bug reporting: http://cygwin.com/bugs.html
> > Documentation: http://cygwin.com/docs.html
> > FAQ: http://cygwin.com/faq/
> >
>
>
> --
> Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
> Bug reporting: http://cygwin.com/bugs.html
> Documentation: http://cygwin.com/docs.html
> FAQ: http://cygwin.com/faq/
>
>
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Bug reporting: http://cygwin.com/bugs.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
- Raw text -