NetEase Cloud Music Tech Team
Apr 14, 2021 · Mobile Development
Understanding the XNU "wakeup" Metric and Its Impact on iOS Battery Consumption
Apple’s XNU kernel introduced the “wakeup” metric in iOS 13 to count CPU core activations from low‑power states, and because high wake‑up rates increase dynamic power consumption, developers must identify and consolidate timers, avoid frequent polling, and pause background tasks to lower the metric and extend battery life.
Battery OptimizationCPU Power ManagementXNU
0 likes · 16 min read