Methods for determining alias offset of a cache memory

A non-transitory computer readable storage medium including instructions that, when executed by a processing system, cause the processing system to perform a method for parity calculations, the method comprising:

• determining, by a redundant array of independent disk (RAID) stack, a first number of processor cycles to reload first data from a first memory address of a main memory into a processor of a data processing system;
• loading, by the RAID stack, second data from a second memory address of the main memory into the processor, wherein the second memory address is configured to be an address offset from the first memory address;
• reloading, by the RAID stack, the first data from the first memory address of the main memory;
• determining, by the RAID stack, a second number of processor cycles to reload the first data from the first memory address of the main memory;
• and
• determining an alias offset of a cache memory associated with the processor of the data processing system based on the first number of processor cycles and the second number of processor cycle, wherein the alias offset is used to load a parity block of RAID data during parity calculations of the RAID data.

A system, comprising:

• a processor;
• a main memory coupled to the processor;
• and
• a redundant array of independent disk (RAID) stack executed from the main memory to cause the processor to
• determine a first number of processor cycles to reload first data from a first memory address of the main memory into the processor;
• load second data from a second memory address of the main memory into the processor, wherein the second memory address is configured to be an address offset from the first memory address;
• reload the first data from the first memory address of the main memory;
• determine a second number of processor cycles to reload the first data from the first memory address of the main memory;
• and
• determine an alias offset of a cache memory associated with the processor of the data processing system based on the first number of processor cycles and the second number of processor cycle, wherein the alias offset is used to load a parity block of RAID data during parity calculations of the RAID data.