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Date: Tue, 22 Jul 2014 20:32:22 -0600 (MDT)
From: Warren Block <wblock@wonkity.com>
To: RW <rwmaillists@googlemail.com>
Subject: Re: How much swap space for a 32 GB RAM system?
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On Tue, 22 Jul 2014, RW wrote:

> On Tue, 22 Jul 2014 10:24:13 -0600 (MDT)
> Warren Block wrote:
>
>> On Tue, 22 Jul 2014, Arthur Chance wrote:
>>
>>> I'm getting a new machine with 32 GB of memory. The old "twice
>>> physical memory" sizing seems ridiculous, so how big should I make
>>> swap? Do I even need swap with this much memory?
>>
>> Technically, no, but the system does like to have at least a little
>> swap space and can benefit from it.  (I forget where this is
>> explained, tuning(7) maybe.)
>
> This is something that is often repeated, but I don't recall every
> seeing an actual explanation.

That's what I said, and then somebody pointed to the explanation.  But 
it was years ago, so now it's hard to remember exactly where it was.