how to optimization my.cnf

[Allen Fan]

hello

Please provide a brief Lessons , Both me and others understand
Other education did not understand anything
Tell us for a server with 8 GB of RAM and 8 Core CPU and CentOs 6.5
How do I set the CPU the RAM cache ?

Now I am using this my.cnf
But MySQL to 130% of the CPU usage
And 100% of CPU usage and hang server
Please tell me how I set full all amounts, thanks