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Re: 64 Bit Linux shows 4GB... was Using all of 4GB RAM...

On Thursday 02 October 2008, Adam Hough wrote:
>On Thu, Oct 2, 2008 at 2:37 AM, Theodore Papadopoulo
><Theodore Papadopoulo sophia inria fr> wrote:
>> Linuxguy123 wrote:
>>> Dennis Gilmore suggested that I boot a 64 bit Live CD to see what it
>>> said about memory usage.  So I did:
>>> [fedora localhost ~]$ free -m
>>>             total       used       free     shared    buffers
>>> cached
>>> Mem:          3969       1286       2682          0        143
>>> 827
>>> -/+ buffers/cache:        315       3654
>>> Swap:         1992          0       1992
>>> Here is what it looks like under my 32 bit installation:
>>> $ free -m
>>>             total       used       free     shared    buffers
>>> cached
>>> Mem:          3034        978       2055          0         33
>>> 619
>>> -/+ buffers/cache:        326       2708
>>> Swap:         1992          0       1992
>>> I appear to gain 935MB of RAM running the 64 bit version.  This is in
>>> spite of the spec sheet on my laptop saying:
>> Could it be simply that free does not show the space needed by the
>> kernel.... which needs (at least some parts of it)
>> to be constantly in memory. I do not think that 127Mb is such a big price
>> to pay for the kernel. Note that to use your
>> memory in a single process you need x86-64. The standard x86 linux limits
>> the processes memory to 2Gb.
>> --
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>If you run the PAE kernel, then all of your memory will be seen and
>used by the OS.  It is what I use when I use a desktop system so that
>I do not have to deal with x86_64 type desktop issues.

I am now running it, seems fine.  Now if we could figgur out why grub takes 
about a minute to present the boot menu.

I did just now update the bios, and now the blinking display if using the hdmi 
cable for about the first 5 minutes seems to be gone.


Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
system consumed all the paper for paging

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