How much swap space for a 32 GB RAM system?

andrew clarke mail at
Tue Jul 22 16:24:12 UTC 2014

On Tue 2014-07-22 17:05:12 UTC+0100, Arthur Chance (freebsd at 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?

Probably not. Of course it depends on your workload. 

You can always add swap later if you really need to, but running
without swap is no problem.

I run a FreeBSD 9.3 amd64 server with 4 GB physical and 2 GB swap.
top(1) tells me just 62 MB is used, presumably just for housekeeping.


More information about the freebsd-questions mailing list