flight-profiler-watch

Display the input/output args, return object and cost time of method invocation. This is the most commonly used command for understanding runtime behavior of a specific function.

Prerequisites: Read the flight-profiler-attach skill first for platform requirements, installation, permissions, and connection details.

When to Use

• You want to see what arguments a function receives and what it returns
• You need to measure how long a specific function call takes
• You want to filter calls by argument values or return values
• You need to catch only exception-throwing invocations
• You want to observe a method's behavior without modifying its source code

Usage

flight_profiler <pid> --cmd "watch module [class] method [options]" --no-color