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List:       opensuse
Subject:    Re: [opensuse] switch from 32bit opensuse to 64bit
From:       "Carlos E. R." <robin.listas () telefonica ! net>
Date:       2014-03-14 12:04:52
Message-ID: 5322F064.9020205 () telefonica ! net
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On 2014-03-14 08:30, Per Jessen wrote:
> Carlos E. R. wrote:
> 
>> On 2014-03-13 15:29, Per Jessen wrote:


>> But surely pointers can not be the larger part of the needed storage,
>> is it?
> 
> I agree it seems unlikely, but because everything has to accomodate a
> 64bit address, the stack is also suddenly twice as big, for instance. 

Oh, the stack, right... You can not "push" a byte.


>>> With a few processes it's no big deal, but 32bit I can run a lot more
>>> processes per system than with 64bit. 
>>
>> Well, if you have tried the experiment both ways, and the memory
>> footprint is bigger, then obviously I believe you :-)
> 
> You can also observe it yourself if you have two systems to compare. 

I don't see a way I could have that many postfix processes in a virtual
machine :-)


I have always "felt" that 64 bit systems used more memory than the 32
bit equivalent. But I thought it was bad coding mostly. I didn't think
about the stack, though. That there are things that you simply can not
code smaller.

-- 
Cheers / Saludos,

		Carlos E. R.
		(from 13.1 x86_64 "Bottle" at Telcontar)


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