in slide 62, all processors are constantly test-and-set the lock variable, which all these processors are issuing BusRdX commands mutliple times before success. It spams the bus with useless work and reduce performance.
Please log in to leave a comment.
in slide 62, all processors are constantly test-and-set the lock variable, which all these processors are issuing BusRdX commands mutliple times before success. It spams the bus with useless work and reduce performance.