Perfetto helps investigate Android runtime behavior and performance. Assess protection overhead through timing, thread activity and device context together.
Evaluation approach
Interpret thread, processor and application events on a common timeline. Control measurement scope and collection overhead.
Application example
Run the same payment flow in baseline and protected builds to determine whether delays occur on the network or the main thread.
Limits and considerations
One trace represents one set of conditions. General conclusions require repeated, representative measurements.
From a trace to the source of delay
Markers before and after a check become useful when interpreted with process and thread context. A timeline can reveal a relationship between the check and a user-visible delay, but correlation alone does not establish causation.
Compare the same workload in baseline and protected builds. Record collection overhead and conditions such as device temperature. Repeated runs and slow-tail cases reveal user impact more clearly than an average alone.
Checks and decisions
- Use the same workload
- Control device conditions
- Compare latency percentiles
Perfetto turns a report that an application feels slower into a specific engineering investigation.
Sources
The primary references above provide the technical basis. Example workflows and evaluation suggestions are this publication’s explanations, not independent test results for a particular product.