16.1.1. big.LITTLE configurations

A number of big.LITTLE configurations are possible, Figure 16.1 uses Cortex-A57 cores as the big cluster and Cortex-A53 cores as the LITTLE cluster, though other configurations are possible.

The LITTLE cluster is capable of handling most low intensity tasks such as audio playback, web-page scrolling, operating system events, and other always on, always connected tasks. As such, it is likely that the LITTLE cluster is where the software stack remains until intensive tasks such as gaming or video processing are run.

The big cluster can be utilized for heavy workloads such as certain high performance game graphics. Web page rendering is another common example. A coupling of these two cluster types provides opportunities to save energy and satisfy the increasing performance demands of applications stacks in mobile devices.

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