With virtwin/shmatvm also, the virtual address of the process at one
point of time will still be 4 GB .
Thanks
Harish
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Harish Rawat E-Mail : [EMAIL PROTECTED]
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Sequent supports few system shmatvm/virtwin for applications to use
more than 4 GB of virtual address space (and RAM). Probably the same support
can be built in Linux also.
Thanks
Harish
Hi,
On Mon, 7 Dec 1998 14:29:38 -0500 (EST), Emil Briggs
<[EMAIL PROTECTED]> said:
> If I remember correctly the 36 bit addressing on Intel does not use
> 36 bit offsets.
Correct: it still uses a 32-bit virtual address space. Only the
physical addressing is 36 bits.
> So to actually use > 4 Gigs of memory your application would need to
> do some extra translation work and take a performance hit.
You can't have more than 4G in a single process (3G under linux). You
can still have multiple processes each with their own 32 bit address
spaces, all getting their own slice out of the 64G physical memory. You
can still use the extra space for the page cache.
--Stephen
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