Assigning cache priorities to virtual/logical processors and partitioning a cache according to such priorities

A computer program product comprising a computer non-transitory readable storage medium having a computer readable program stored therein, wherein the computer readable program, when executed on a computing device, causes the computing device to:

• identify a plurality of high priority virtual processors in the computing device;
• determine a percentage of cache lines of the at least one cache memory to be assigned to high priority virtual processors based on the identification of the plurality of high priority virtual processors;
• and
• mark a portion of the cache lines in the at least one cache memory as being evictable by only high priority virtual processors based on the determined percentage of cache lines to be assigned to high priority virtual processors, wherein the marked portion of the cache lines cannot be evicted by lower priority virtual processors having a priority lower than the high priority virtual processors.

An apparatus, comprising:

• a processor;
• and
• a memory coupled to the processor, wherein the memory comprises instructions which, when executed by the processor, cause the processor to:
• identify a plurality of high priority virtual processors of the apparatus;
• determine a percentage of cache lines of the at least one cache memory to be assigned to high priority virtual processors based on the identification of the plurality of high priority virtual processors;
• and
• mark a portion of the cache lines in the at least one cache memory as being evictable by only high priority virtual processors based on the determined percentage of cache lines to be assigned to high priority virtual processors, wherein the marked portion of the cache lines cannot be evicted by lower priority virtual processors having a priority lower than the high priority virtual processors.