Memory Hotplug on Android

on YouTube ↗37m

" summary

Describes applying Linux Memory Hotplug to Android to logical-offline 64 MB regions so DDR can enter partial array self-refresh or deep power down, using a CMA reservation plus a balloon driver and the Android low‑memory killer to bound latency and guarantee camera allocations. Claims about power: roughly 50 mW (≈5%) runtime savings, up to ~15% in big.LITTLE scenarios. Maxim reports a working upstream patchset with some stability and latency‑measurement work remaining.

AI-written summary · about

" chapters (5)

1. 0:00Start
2. 2:32Continuous Memory Allocation
3. 8:29Temperature-Compensated Self Refresh
4. 25:14Latency
5. 28:51Distributed Memory Management

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