Optimized configurable scheme for demand based resource sharing of request queues in a cache controller

A computer system comprising:

• at least one computer processor, the computer processor having at least one cache memory and a cache controller;
• a register coupled to the at least one processor;
• a memory bus coupled to the at least one computer processor;
• a memory coupled to the memory bus;
• and
• a means for dynamically selecting between one of a cache management scheme based on a maximum number of programmable writeback entries and a cache management scheme allowing both writeback entries and incoming core requests to be allocated based on priority.

A computer system comprising:

• at least one computer processor, the computer processor having at least one cache memory and a cache controller;
• a register coupled to the at least one processor;
• a memory bus coupled to the at least one computer processor;
• a memory coupled to the memory bus;
• and
• wherein said cache controller dynamically selects between one of a cache management scheme based on a maximum number of programmable writeback entries and a cache management scheme allowing both writeback entries and incoming core requests to be allocated based on priority.

A cache controller comprising;

• at least one register;
• and
• a cache memory coupled to said register,
• wherein said cache controller dynamically selects between one of a cache management scheme based on a maximum number of programmable writeback entries and a cache management scheme allowing both writeback entries and incoming core requests to be allocated based on priority.