Three out of Four Isn't Bad

[Bill Davidsen]

Langdon Stevenson wrote:
> Roger Heflin wrote:
>> Néstor wrote:
>>> I have a situation where I have 36 Gigs of ram on a machine and I 
>>> could only
>>> see 4 Gigs
>>> then I installed the PAE kernel and I can only see 24 Gigs.  I have a 
>>> ticket
>>> opened with
>>> Red Hat to see what they recommend.
>>>
>>> :-)
>>>
>>
>> If that is a 64-bit capable machine, you should run 64-bit on it, you 
>> can run 32-bit userspace stuff, but if you run a 32-bit os with that 
>> kind of ram you run into all sorts of issues with the machine running 
>> out of the 800-900MB of lowmem and this causes fatal issues even those 
>> massive amounts of highmem are available.   You will have enough 
>> issues with 32-bit and lots of ram to make it worth considering the 
>> 64-bit stuff.
>>
>>                               Roger
> 
> 
> I recently upgraded from F7 to F8 and went with the 32 bit F8 version 
> rather than the 64 F7 due to the significant difficulties I had with 
> FireFox/Flash/Java.
> 
> I had installed another 2 Gig of RAM just prior to the upgrade and it 
> showed up fine under F7 64bit.
> 
> However on F8 32bit I can only see 3.2 gig of my RAM.  It is not a huge 
> problem as I don't use it all.  The 64 version of F7 used to gobble up 
> all of my RAM occasionally (I could never figure out why, or what 
> application was responsible).  That problem vanished with the 32 bit F8 
> and 32 bit apps.
> 
> It is interesting though that when the 64 v's 32 bit question has been 
> asked on this list that I have never heard this memory limit mentioned 
> (I may have missed it though).  Perhaps it is just that RAM is now 
> soooooo cheap that it is only just becoming an issue.
> 
> Still.  Looks like a really good reason to go with 64 bit next time I do 
> an upgrade!
> 
I didn't get all my RAM even with 64 bit, so don't bet the farm on it 
working.

-- 
Bill Davidsen <davidsen at tmr.com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot