How to measure performance?

[Danila Vologdin]

My problem that I don't know a good practic way
to measure performance of my system
I need fileserver for Win9x machines with files share with dos
applications
Friendly speaking I need to choose between WinNT and Linux
I know there are a lot of parameters in for ex in smb.conf but how to
play with it?
may be there are some utilities or etc.

Any help will be appreciated
Thanks in advance

Danila Vologdin