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Android Developers Backstage
Episode 211: Rules about performance tools
Nov 26, 2024
Shai Barack, who leads Android Platform Performance and System Health at Google, joins the discussion on balancing performance and battery life. The conversation dives into the intricacies of system health, measuring app efficiency, and using tools like Perfetto and Compiler Explorer. They tackle trade-offs between performance and battery longevity, the importance of telemetry data, and optimizing app performance with a focus on collaborative practices. Insights on memory management and open-source tools further enrich the dialogue.
01:10:15
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Quick takeaways
- System health balances resource usage to optimize performance without sacrificing battery life, requiring collaboration between development teams and app developers.
- Telemetry data plays a crucial role in identifying performance issues and trends, facilitating informed decision-making for system health management.
Deep dives
Understanding System Health
System health refers to finding the balance between various resources on a device to ensure optimal performance without compromising battery life. For instance, simply running the CPU at maximum frequency may enhance performance but result in overheating issues, while minimizing CPU usage could prolong battery life at the cost of performance quality. This balance must be managed across the entire stack of the device, from the kernel to the user applications, necessitating cooperation between development teams. Achieving this requires a strategic approach in making changes to the platform while also educating app developers on best practices for maintaining system health.
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