Memory, swap, and limits

[James Kosin]

Bruno Wolff III wrote:
> On Wed, Jun 18, 2008 at 09:56:25 -0400,
>   James Kosin <jkosin at beta.intcomgrp.com> wrote:
>   
>>>   
>>>       
>> Having TOO much swap space can be a detriment and not an asset.   
>> Usually, the rule of thumb I go by is allocate about 2x the amount of  
>> physical memory installed on the system; for machines with < 1M.  This  
>> number will need to approach more or less 1x for machines with 1-2M.   
>> With machines with > 2M; I'm not sure swap space will make much of a  
>> difference, unless you rely on X heavily.
>>     
>
> Presumably you mean Gigabytes above as there haven't been desktop machines
> with memory on the order of 1 megabyte in about 15 years.
>
> There are other factors in this. If you turn off overcommit you need to
> have swap space available to back memory that may be allocated but not
> really being used. So rules of thumb using ratios may not always be
> applicable.
>
>   
Sorry, I'm a bit dated and now I've probably revealed my age.
I've been around since the first personal computers and remember when 
64K was considered a LOT of memory.

James

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