[nylug-talk] if I have 64GB of RAM, how much swap do I really need?

[H. G.]

On 8/31/07, Heow Eide-Goodman <lists at alphageeksinc.com> wrote:
>
> On Fri, 2007-08-31 at 10:45 -0400, H. G. wrote:
>
> > With 64 GBs of memory, do you even need swap....?
> > The real question is what kind of usage are you anticipating?
>
> That's sort of what I was expecting.  :-)  It's running at between 50 to
> 70% capacity, with multiple developers (read: multiple memory-DBs)
>
> Actually, I think the real question is if the DB can simply stop
> grabbing RAM and fail before taking the rest of the system down with it.
>
> - h
>
>
>
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If you *are* going to add swap, at this point you might as well dedicate a
full drive or a full RAID array
to that duty. :)

Do these memory DBs use deferred writes to back themselves to disk?  Are you
using SQLite?