[KLUG Members] Laptop Purchase Opinions Please

[Anthony Mattas]

Actually, it means it supports over 4GB. :-) If you are going to install 
less than 4GB you can recompile the kernel to not use that option (having 
it enable adds another 128k to the kernels memory foot print). But having 
that enbabled I believe allows up to 32GB (I think, it could be 1TB now 
I'm not sure)

On Thu, 8 Nov 2007, bert wrote:

>
> Thanks Tony,
>
>
> I found the line
> CONFIG_HIGHMEM4G=y
> (and a lot more interesting info)
>
> I'll guess this means that the max mem is equal to 4G.
>
> Bert.
>
>
>
> Tony Mattas wrote:
>>     If you extract /proc/config.gz  there is a line that is CONFIG_HIMEM,
>>  if its true I believe it supports 4GB or more, they recently changed it in
>>  the latest kernels so it may no be there anymore.
>>
>>  bert wrote:
>> >  Hi!
>> > 
>> >  If I referre to the kernel, in what /proc can I find the maximum amount
>> >  of memory the kernel will use?
>> >  I've searched the /proc but can't find it. (could be missing it).
>> > 
>> >  Regards,
>> >  Bert.
>> > 
>> > 
>> > 
>> >  Tony Mattas wrote:
>> > 
>> > >  If your referring to the kernel, It can be found through proc 
>> > >  normally.
>> > > 
>> > >  If your talking hardware it can be found through crucial.com normally.
>> > >  Let me know I can tell you where to find it in proc. What distro is 
>> > >  it?
>> > > 
>> > >  bert wrote:
>> > > 
>> > > >  Is there any way to find out what the maximum of supported memory 
>> > > >  is? I'll guess that top will not show more memory than supported, 
>> > > >  but than I
>> > > >  have to put at least more than 2G in to check this.
>> > > >  Would a kernel compiled to support just the available amount of 
>> > > >  memory,
>> > > >  be noticeable faster? I have webserver running that sometimes needs 
>> > > >  to
>> > > >  go into swapping (mostly due to havy database access). Okee, I could
>> > > >  upgrade to more than 2GB, but If the swapping process could be 
>> > > >  handled
>> > > >  more efficiently perhaps that would not be necessary. And most of 
>> > > >  the
>> > > >  time the server runs fine.
>> > > >  I have a laptop with only 512MB would it be smart to compile for 
>> > > >  only
>> > > >  512MB available? Especially  with those lazy laptop drives any 
>> > > >  better
>> > > >  drive management is welcome.
>> > > > 
>> > > >  Regards,
>> > > >  Bert
>> > > > 
>> > > > 
>> > > >  Tony Mattas wrote:
>> > > > 
>> > > > 
>> > > > >  Remember that a lot of standard Linux kernels don't support more 
>> > > > >  than
>> > > > >  2GB unless you rebuild it, although not a big deal just a
>> > > > >  consideration to make. Also some support up to 4 by default, if 
>> > > > >  you only have 2 I would rebuild it to support a maximum of two 
>> > > > >  (better
>> > > > >  paging and such, I could get into the details but don't want to be
>> > > > >  confusing)
>> > > > > 
>> > > > >  -- 
>> > > > >  Cheers,
>> > > > > 
>> > > > >  Anthony G. Mattas
>> > > > >  Network Presence Consultant
>> > > > > 
>> > > > >  p: +1 (269) 547-8914
>> > > > >  e: amattas at gmail.com <mailto:amattas at gmail.com> 
>> > > > >  <mailto:amattas at gmail.com> <mailto:amattas at gmail.com>
>> > > > >  w: http://www.mattas.net
>> > > > > 
>> > > > >  Individualization, Developer, Maximizer, Strategic, Responsibility 
>> > > > >  ------------------------------------------------------------------------
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>> > > > 
>> > >  -- 
>> > >  Cheers,
>> > > 
>> > >  Anthony G. Mattas
>> > >  Network Presence Consultant
>> > > 
>> > >  p: +1 (269) 547-8914
>> > >  e: amattas at gmail.com <mailto:amattas at gmail.com> 
>> > >  <mailto:amattas at gmail.com>
>> > >  w: http://www.mattas.net
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>>
>>  --
>>  Cheers,
>>
>>  Anthony G. Mattas
>>  Network Presence Consultant
>>
>>  p: +1 (269) 547-8914
>>  e: amattas at gmail.com <mailto:amattas at gmail.com>
>>  w: http://www.mattas.net
>>
>>  Individualization, Developer, Maximizer, Strategic, Responsibility
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>>  Access to this email by anyone else is unauthorized. If you are not the
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>>  No liability or responsibility is accepted if information or data is, for
>>  whatever reason corrupted or does not reach its intended recipient. No
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