Linux performance vs RAM amount
Okay, I feel rather dumb asking this but I really don't think I know the answer, despite my history in computers. I have 192MB of ram in my main system. It is an AMD K6-2 550 so not much to boast. I have been thinking about adding some ram but was wondering if there would be any performance benefit? Back on Win98 I knew the answer, but I am not sure how linux uses ram though.
As it is, I usually touch about 15-60MB of my swap, well after I have been up for a month or two and have been using the browsers. I do some cad work with Qcad and much playing with The Gimp.
The simple question would be, would I see an improvement with more ram? I don't need it there just to say I have it, but if 256 or 512 would boost performance, it is cheap enough now to grab some.
Also, I have 64MB in a firewall/router box. Would more ram in this speed up the iptables performance any? You hear of servers with 1+ GIG of ram in them for home use, do they really use it?
Okay, just some questions. Let me know what you think. I know some of you have more knowledge than I do.