ARM based SoC's are rapidly changing now. they also has pioneered the mobile device in addition to a wider platform. In good case are ARM server(eg. uBuntu on ARM) and Desktop PC platform.
They regard about high-performance and low-power platform. These seems like double-edged sword.
- In case of performance, CPUs and GPUs are running on high frequency(Over 1GHz) for support high performance. In this time, CPUs and GPUs need more power.
- In case of low-power, CPUs and GPUs are running on low frequency(Under 1GHz) for support low-power. In this time, CPUs and GPUs not need more power.
Here are introduce link about `big.Little` architecture. The big.Little architecture support both performance and low-power. Such a great feature. :)
Linaro already introduced big.Little in there last connect like below. :)
http://www.linaro.org/documents/download/f3569407bb1fb8bde0d6da80e285b832508f92f57223c
And now, they upstream big.Little on linux mainline like below. :)
http://lwn.net/Articles/481055/
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