process memory limitations
Nifty Hat Mitch
mitch48 at sbcglobal.net
Fri Feb 3 02:33:55 UTC 2006
On Mon, Jan 23, 2006 at 12:17:33AM +0200, Oded Maimon wrote:
> Date: Mon, 23 Jan 2006 00:17:33 +0200
> From: Oded Maimon <oded.maimon at gmail.com>
> To: For users of Fedora Core releases <fedora-list at redhat.com>
> Subject: process memory limitations
> Reply-To: For users of Fedora Core releases <fedora-list at redhat.com>
>
> Hi,
>
> I've a question about per process memory allocation limitation.
>
> if i've a 32bit machine, with RHEL 4, what are the limitation of memory
> that each process can allocate?
>
>
> if i've a 64bit machine, with RHEL 4, and i'm using a 32bit program,
> what are the limitation of memory that each process can allocate?
Allocate, malloc(?), sbrk(), heap, stack....
What programming language?
In general an signed int that lets you move +/_ inside
something will put a 2GB limit on common objects and
common programming practices.
If you are concerned about bounds you need to write a test case
that explores exactly what matters to you.
Search engines like Google are your friend.
https://www.redhat.com/en_us/USA/rhel/details/limits/
Tells me:
Maximum x86 per-process virtual address space
Version 2.1 Version 3 Version 4
3GB Approx 4GB Approx 4GB
--
T o m M i t c h e l l
Found me a new place to hang my hat :-)
Found me a cable too.
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