[rbanffy]

> Linux folks say that unused memory is not good, of course it is.

30 or so years ago, while watching over a friend of mine's shoulder who was sitting at the gorgeous 3278-2 system console with the legendary beam-spring keyboard, looking into usage stats on an IBM 4381 mainframe, I noticed the CPU (I think it was only one on that machine, that occupied most of a floor) was pegged at 100% usage. When I asked if that was bad, he simply responded:

"Of course it's 100% used! We paid for it, we'd better use it!"

Later I understood that he'd probably be more concerned if the IO processors started to get saturated, but, by then, I was no longer using mainframes.