Industry Expert Blogs
A Closer Look at Software Development for ARM’s big.LITTLE Processing - Part IIA View from the Top: A System-Level Blog - Achim NohlMay. 29, 2012 |
big.LITTLE processing refers to the concept of combining a high performance ARM Cortex™-A15 MPCore™ processor along with an energy efficient Cortex-A7 processor. There were two primary use models recently introduced by ARM for big.LITTLE processing: task migration and MP. The big.LITTLE task migration use model is where the applications migrate between one cluster and another based on some criteria. The big.LITTLE MP use model, on the other hand, allows both CPUs to run simultaneously. Determining which software should run on the Cortex-A15 and which should run on the Cortex-A7 is likely to be decided at runtime through a power-aware scheduler in the operating system kernel.