Re: using more physical memory?
From: Christopher A. Kantarjiev (cak_at_dimebank.com)
Date: 06/22/05
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Date: Tue, 21 Jun 2005 20:48:35 -0700
Wolfgang S. Rupprecht wrote:
> "tedu" <tu@zeitbombe.org> writes:
>
>>have a look at the new malloc.c in cvs. it uses mmap.
>>(the kernel has since changed to account mmap as part of your data
>>limit, but not in 3.7)
>
>
> Mmap and/or the page table code has also changed for the better since
> the last time I tried my mmap test. I can now mmap 127.50 TB .
>
> Now I'm not brave enough to try to read past the end of my mmapped
> file. I'm assuming it allows the mmap to extend past the end of the
> underlying file but will hit one with a SIGBUS if one actually tried
> to access it?
>
> -wolfgang
*tera*bytes? Really? Maybe gigabytes? That would be more or less consistent with
my results.
I mean, there are only 32 address bits...
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