Re: Address Space Limit - 2.25GB Per Process?

Subject: Re: Address Space Limit - 2.25GB Per Process?
From: Umesh Vaishampayan <email@hidden>
Date: Tue, 5 Nov 2002 13:53:14 -0800

On Saturday, November 2, 2002, at 05:53 PM, Jeremy T. Fox wrote:

> > Each user process can have 4GB - 4K of VM address space. However you
> do
> > not have a larger than 1.5GB "hole" in that address space. If g77
> must
> > work in "contiguous VM", I think 1.5GB is the limit you will have to
> > work in.
>
> From the other responses, it looks like the hole is 2.25GB, at least
> in Jaguar. So the 4GB of memory address space is most likely only
> going to be used by people working on multiple documents in one
> program, versus people working on one big document, which presumably
> need to be in contiguous memory, I would think.

Only if the program does not do "map needed portions of the file" and
insisted on mapping the whole file at once....

--Umesh
--
Umesh Vaishampayan Apple Computer, Inc.
Mac OS X Kernel Ph: (408) 974 0229
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References:
	>Re: Address Space Limit - 2.25GB Per Process? (From: "Jeremy T. Fox" <email@hidden>)

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