Most activated memory portion handling

A method for activation tracking comprising:

• recording a number of times that a portion of a memory is accessed;
• storing the number of times that the portion is accessed as well as an address for the portion;
• determining that the number of times that the portion is accessed exceeds a certain threshold;
• storing an others value where the others value describes a number of times that other portions of the memory have been accessed where addresses for those other portions are not stored;
• casting out the address in response to sufficient other portions having been accessed more times;
• and
• marking a second portion of the memory for refresh based on the number of times exceeding the certain threshold.

A computer program product embodied in a non-transitory computer readable medium for implementing an apparatus for activation tracking comprising:

• code for implementing calculating logic configured to determine a number of times that a portion of a memory has been accessed;
• code for implementing storage memory, coupled to the calculating logic, configured to store the number of times that the portion of a memory has been accessed as well as an address for the portion, wherein the number of times and the address are cast out in response to where sufficient other portions have been accessed more times;
• code for implementing an others register, where the others register value describes a number of times that other portions of the memory have been accessed where addresses for those other portions are not stored;
• code for implementing threshold logic, coupled to the calculating logic, configured to determine that the number of times that the portion is accessed exceeds a certain threshold;
• and
• code for implementing marking logic, coupled to the calculating logic, configured to define that a second portion of the memory needs refresh, based on the number of times exceeding the certain threshold.

A computer program product embodied in a non-transitory computer readable medium comprising:

• code for generating an activation tracking circuit comprising:
• a first module configured to determine cumulative access to each of a first plurality of memory locations and to a second plurality of memory locations wherein the first module retains an address for each of the first plurality of memory locations and wherein a number of times, that other portions of the memory have been accessed where addresses for those other portions are not retained, is stored;
• and
• a second module configured to take action to avoid corruption of a selected portion of memory, by casting out an address in response to sufficient other portions having been accessed more times, when a cumulative number of accesses to at least one of the first plurality of memory locations exceeds a threshold.