ANR & Memory Profiling Sprint
Deep forensic profiling for Application Not Responding (ANR) lockups, UI thread freezing, and runaway memory leaks causing Out-of-Memory (OOM) background kills.
Engagement Key Parameters
Eliminating Freezes and Silent Background Kills
Application Not Responding (ANR) dialogs on Android and Watchdog timeout crashes on iOS degrade user retention faster than almost any other category of defect. Similarly, runaway heap consumption leads mobile operating systems (like iOS JetSAM and Android lowmemorykiller) to terminate apps in the background, erasing user session states.
Think Harbor Base conducts surgical performance and memory profiling sprints to trace thread synchronization bottlenecks and eliminate memory retention cycles.
Technical Investigation Focus Areas
1. Main Thread Contention & Deadlock Profiling
- Real-time thread dump extraction during user interaction flows.
- Identification of disk I/O, database queries, and synchronized mutex locks running on the UI thread.
- Isolation of cross-thread coroutine and async dispatch deadlocks.
2. Heap Dump Diffing & Memory Leak Isolation
- Capturing baseline and stress-tested memory snapshots using Android Studio Memory Profiler and Xcode Instruments (Leaks, Allocations).
- Tracing persistent object references held by static singletons, uncancelled event subscribers, and leaked activity/view controller contexts.
3. GPU Overdraw & Frame Pacing Audits
- Analysis of rendering pipeline frame drops (jank) causing sluggish gesture response and perceived freezing.
Deliverables & Pricing
- Fee: $6,900 USD fixed sprint fee.
- Duration: 7 business days.
- Deliverables: Memory leak trace graph, thread contention matrix, and code pull requests addressing root cause allocations.
- Inquire: Contact our diagnostics team.
Inquire for This Service
Have crash traces or ANR logs needing immediate assessment? Share stack snippets or telemetry logs with our engineering team for preliminary scoping.
Submit Diagnostic Brief