lkml.org 
[lkml]   [2003]   [Apr]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [Lse-tech] Re: maximum possible memory limit ..
Andi Kleen wrote:
> > Linux supports up to 4 GB (~2^32 bytes) of memory on 32-bit
> > architectures and 64 GB (~2^36 bytes) on x86 with PAE. No other
>
>
> That's far too optimistic. 64GB will need patches, like the pgcl
> patch. It is unlikely to work out of the box. Just do the math.

[explanatory math snipped]

> Realistic limit currently is ~16GB with an IA32 box. For more you need

<marketingspeak>
This means ~16GB is available on IA32 right now with vanilla kernels,
and 64GB is available from vendors who are willing to apply the pgcl
patch. Conclusion: Linux supports 64GB on IA32
</marketingspeak>

> an 64bit architecture.

> > On 64-bit systems, Linux supports up to 16 EB (~2^64 bytes) of memory

That statement is OK?


Thanks,
Carl-Daniel
--
http://www.hailfinger.org/

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:35    [from the cache]
©2003-2011 Jasper Spaans