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@xxxxxxxxx> > To: For users of Fedora Core releases <fedora-list@xxxxxxxxxx> > Subject: process memory limitations > Reply-To: For users of Fedora Core releases <fedora-list@xxxxxxxxxx> > > 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.
