I want /tmp in RAM

Hi,
I'm enjoying 1 Gb RAM, then I decided to allocate some RAM as temporary use.
I set in my /etc/fstab
/tmp /dev/shm tmpfs size=256m 0 0
But I'm not sure whether my /tmp is erased by boot procedures or because it's a real RAM.
Is there some test, to verify this?
Do I made wrong setting?
F

carlocci wrote:
dhave wrote:
lucke wrote:It was a default setup in Arch a few years ago, btw.
Does anyone know why the default was changed?
if I need to copy a cd the temporary image goes to /tmp of course, but I don't have 700 mB in /tmp because I don't even have 700mB of ram.
O.K., that makes sense. Thanks for the explanation.

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