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Date: | Mon, 4 Dec 2000 13:41:54 -0800 |
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Re: > Re:
> > Does anyone have a current rule of thumb for configuring
> > memory? And I > don't mean a rule devised by a purveyor of memory ;>)
>
> I used to say 64 MB + 2 MB per user.
>
> Now, I think I'd say 128 MB + 4 MB per user.
>
> Stan Sieler
No disagreement with Stan's recommendation; just note that
with 128MB SIMMs for 9X9 boxes going for under $200 each
from reputable third-party vendors last time we ordered (even
for *HP* SIMMs), if you are starting with 128MB on a 9X9 you
should be able to go up to 1GB for right around $1000 or so.
We're running 1792 MB on our 959-400, and for normal
steady-state operations (i.e.: Nobody launches a big new
query) we have almost no disc I/O.... :-)
SIDEBAR: In addition to Stan's above "128 MB + 4 MB / user",
I've seen a few recommendations to add x MB per processor
for every processor > 1.. I'm not technically qualified to speak
authoritatively on that, but all else being equal it does seem
logical to add some additional memory if you add processors;
even if nothing else changes....
SUMMARY: I've seen a couple "recommendations" from
memory vendors that are pretty clearly overkill. But unless you
are strapped for cash my "seat of the pants" guess is that even
for small-medium production systems 1GB of memory is
probably not out of line.... although clearly many systems run
fine with less than that....
Ken Sletten
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