Don't try this yourself, you might break something.
These recommendations were from Pete Vogel, who runs a bigger site than
you
do (can you do 85Mb/s on just one server? .. and he has many!!).
Don't change these params unless you understand them. I am working
on adding explainations. Amongst other things (like breaking your
network connectivity), you might actually make your machine slower if
you just blindly use them. In fact, I only set a couple of them. And
always best to set one at
a time to see if you notice the improvement you are looking for.