which lighweight server to use?

[Mutikasa]

nginx would be the best. If it is true that it eats more ram, it has to be a veri insignificant difference.

it is not insignificant, look at this http://serversreview.net/this-is-wha...d-free-edition
nginx : 285MB
litespeed: 140MB

but I can't find how much lighttpd uses