Setting Variables

[Endie]

Dear all..

Does anyone know how to set variables in MySQL
ideal for the performance so the machine can run maximum
which variable i should be notice?
what is the value of each variable?
how can i calculate to get the value? is there the formula?

for example:
max_allowed_packet =?
max_binlog_size=?
read_buffer_size=?
etc.

mysql version : v 5.1.22 InnoDB
RAM 1GB
OS : FreeBSD

Thx before