Use this dynamic tracing facility for performance analysis as well as for debugging problems. A probe is a software mechanism that interrupts normal system action to investigate and obtain information about current context and system state.
ProbeVue is a dynamic tracing facility with the following features:
- Trace hooks do not have to be pre-compiled. ProbeVue works on unmodified kernel or user applications.
- Trace hooks have no effect (do not exist) until they are dynamically enabled.
- Tracing actions (specified by the instrumentation code) to be executed at a trace hook are provided dynamically at the time the trace hook is enabled.
- Trace data captured as part of the tracing actions are available for viewing immediately and can be displayed as terminal output or saved to a file for later viewing.
- Read about the probevue command for detailed information.
- The Dynamic Tracing section in the General Programming Concepts: Writing and Debugging Programs provides information about the VUE programming language and its features.
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