Optimizing Mobile Applications

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Managed Memory: Problems • In Unity, the heap only expands. It never shrinks. • iOS & Android still care about reserved pages. • Detail: Unused blocks of the heap remain reserved, but are paged out of the working set.
Managed Memory: Problems (2) • Temporary memory allocations are really bad. • 1 kilobyte of allocation per frame, 60 FPS • = 60 kilobytes per second of allocation • If GC runs once per minute (BAD for framerate)… • 3600 kilobytes of memory needed!
Page 2 and 3: Optimizing Mobile Applications
Page 4 and 5: Us Mark Ian
Page 6 and 7: Profiling
Page 8 and 9: Instruments! • Free, included wit
Page 10 and 11: Instruments CPU Profiler: Startup T
Page 12 and 13: Instruments: Reading the PlayerLoop
Page 14 and 15: Instruments: Examining a Callback
Page 16 and 17: Instruments: Coroutines (2) • Cor
Page 18 and 19: Instruments: Identifying Asset Load
Page 20 and 21: 5.3 Memory Profiler • Download co
Page 22 and 23: 5.3 Memory Profiler: Duplicated Tex
Page 24 and 25: Assets
Page 26 and 27: Asset Auditing: Common Errors • I
Page 28 and 29: Asset Auditing: HOWTO (2) • Asset
Page 30 and 31: Common Rules: Textures • Make sur
Page 32 and 33: Common Rules: Audio • MP3 compres
Page 34 and 35: Managed Memory: How It Works Heap c
Page 36 and 37: Managed Memory: How It Works Garbag
Page 38 and 39: Managed Memory: How It Works When t
Page 42 and 43: Tracking Managed Memory Allocations
Page 44 and 45: Memory Conservation: Boxing • Hap
Page 46 and 47: Memory Conservation: Foreach • Al
Page 48 and 49: Memory Conservation: Unity APIs (2)
Page 50 and 51: CPU Performance Tips: Loading
Page 52 and 53: XML/JSON: Reduce Workload • Strat
Page 54 and 55: XML/JSON: Reduce Workload (3) • S
Page 56 and 57: Large Prefabs (2) • For very larg
Page 58 and 59: CPU Performance Tips: Runtime
Page 60 and 61: Cached Material/Animator/Shader Pro
Page 62 and 63: Instruments: Identifying Boxing
Page 64 and 65: Canvases, Draw Calls and Batching
Page 66 and 67: Reducing Batching Cost • Reduce n
Page 68 and 69: Splitting Canvases: Example
Page 70 and 71: Splitting Canvases: Example Change
Page 72 and 73: Trampolines
Page 74 and 75: How Unity Invokes Callbacks • Int
Page 76 and 77: Replacing Callbacks • Remove Upda
Page 78: Replacing Callbacks: Advantages •

Optimizing Mobile Applications

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