ARM big.LITTLE technology is a heterogeneous processing architecture which uses two types of processor. ”LITTLE” processors are designed for maximum power efficiency while ”big” processors are designed to provide maximum compute performance. Both types of processor are coherent and share the same instruction set architecture (ISA).
Using big.LITTLE technology, each task can be dynamically allocated to a big or LITTLE core depending on the instantaneous performance requirement of that task. Through this combination, big.LITTLE technology provides a solution that is capable of delivering the high peak performance demanded by the the latest mobile devices, within the thermal bounds of the system, with maximum energy efficiency.