Re: Address Space Limit - 2.25GB Per Process?
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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