Observability & Evaluation · Software component

Code Range Annotator

Software componentObservability & EvaluationObservability & Evaluationarc:CodeRangeAnnotator

An instrumentation component that marks named, nestable semantic ranges (e.g., workflow, reasoning step, LLM generation, tool call) in application code for display on profiler timelines.

Responsibility. Emits semantic range annotations that label profiler timeline regions.

Also known as: NVTX annotation, Semantic range markers

Direct neighbourhood (hover for relationship types)

Relationships

is invoked by dependency

ReAct Agent Controller Ch4.4

emits telemetry to dynamic

GPU System Profiler Ch4.4

Design guidance

SHOULD annotate workflow, per-step, LLM-generation and tool-execution ranges so idle GPU periods can be correlated with agent phases.

Classification

Technologies: NVTX (NVIDIA Tools Extension)
Quality attributes: Maintainability (ISO/IEC 25010)
Risks mitigated: Anonymous kernel activity that cannot be mapped to agent phases

Sources

Ch4.4: T. Nguyen, "Performance Profiling and Optimization," in Mastering Agentic AI Systems: Guide for the NVIDIA NCP-AAI Exam, 1st ed. 2026, ch. 4.4. ISBN: 9798244538229.