How much swap space for a 32 GB RAM system?

Warren Block wblock at
Wed Jul 23 02:32:24 UTC 2014

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.

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