On Tue, 3 Oct 2000, Dani Arbel wrote:
> i would reccomand to make the swap at least double the RAM size. that
> system has too small swap partition.
sorry for poking in again - i just had to dispell that mith. this 'swap
size is double RAM size' was the rule of thumb for unix administrators
about 5-10 years back. unix systems back then used to pre-allocate space
in the swap partition for every page of memory allocated for program's
code and data segments in memory. this meant that you had to have at least
the same ammount of swap space as your RAM size, in order to be able to
use all of your system's RAM.
also, RAM was very expensive back then, so it was scarce.
these days, however, RAM is cheap, and linux does not do that
pre-allocation (and i think neither do other modern unices), so some
people manage to run their machine without using any RAM at all. if you
system starts using swap space alot - it's often cheap enough to simply
buy more ram. using a lot of swap is mostly left relevant for heavy-duty
machi, and even then you try to get your system to do as little swap as
possible (especially if you're running an interactive web server, or
similar).
thus - allocate RAM based on your experience with the pattern of usage of
your machine.
guy
"For world domination - press 1,
or dial 0, and please hold, for the creator." -- nob o. dy
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