In this episode Chet, Romain and Tor chat with Shai Barack about how the Android platform team studies performance and understands system health - and what is system health anyway? We talk about measuring performance, deciding trade-offs, and our favorite tools such as Perfetto, Compiler Explorer, and Android Studio's Memory Profiler.   Chapters: Intro (00:00) System health (0:27) Efforts to make apps more efficient (3:35) Telemetry data (5:59) Trade offs between long battery life and good performance (8:21) Scheduling groups (10:38) Static drain (13:32) Collaborating with App developers vs operating system (19:10) High refresh rates (23:26) Reach vs engagement (32:02) What tools does your team use to optimize performance? (34:10) Godbolt.org (37:09) Demystifying (39:39) The best tools are multi-player (43:52) R8 or R-Not? (45:42) Optimizing for feature sets (48:05) Tools, not Rules (50:08) What are the tools I should be aware of as an app developer looking to upscale performance? (54:36) Allocation tracker (55:37) Open source tools (57:08) Useful resources for devs to understand various tools (59:04) Final thoughts (1:06:19) Links: <ul> <li dir="ltr" aria-level="1"> Compiler Explorer → <a href= "https://goo.gle/3Zbq6DV">https://goo.gle/3Zbq6DV</a>  </li> <li dir="ltr" aria-level="1"> Perfetto → <a href= "https://goo.gle/3OtD3UK">https://goo.gle/3OtD3UK</a> and <a href= "https://goo.gle/3B3S3p5">https://goo.gle/3B3S3p5</a>  </li> <li dir="ltr" aria-level="1"> Tools, not Rules  → <a href= "https://goo.gle/416CyY7">https://goo.gle/416CyY7</a>  </li> </ul>   Shai:  Romain: <a href= "https://twitter.com/romainguy">@romainguy</a>, <a href= "https://www.threads.net/@romainguy">threads.net/@romainguy</a>, <a href= "https://androiddev.social/@romainguy">romainguy@androiddev.social</a> Tor: <a href= "https://www.threads.net/@tor.norbye">threads.net/@tor.norbye</a> and <a href= "https://androiddev.social/@tornorbye">tornorbye@androiddev.social</a> Chet: <a href= "https://twitter.com/chethaase">@chethaase</a>, <a href= "https://www.threads.net/@chet.haase">threads.net/@chet.haase</a>, and <a href= "https://androiddev.social/@chethaase">chethaase@androiddev.social</a>   Catch videos on YouTube → <a href= "https://goo.gle/adb-podcast">https://goo.gle/adb-podcast</a>   Subscribe to Android Developers  → <a href= "https://goo.gle/AndroidDevs">https://goo.gle/AndroidDevs</a>

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Episode 211: Rules about performance tools

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