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From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Jerry McAllister <jerrymc@msu.edu>
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Cc: "Anthony M. Rasat" <anthony.rasat@gmail.com>, freebsd-questions@freebsd.org
Subject: Re: To swap or not to swap
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>>> Yes, have some swap.   The system uses this space for more than swapping
>>> out processes.  It uses it for paging and for crash dumping.  The
>>> rule of thumb is 2.2 times memory size.
>>
>> why not 2.17?
>
> Sounds good to me.    Takes one more character to type...
and both 2.2 and 2.17 is nonsense.

the only rule is use as much as needed