---
title: "Nsight Systems"
description: "Profile a serving process with NVIDIA Nsight Systems: the timeline's rows, a window on decode, three readings of it, and what the timeline cannot show."
canonical_url: "https://fanout.sh/inference-eng/curriculum/12-03"
md_url: "https://fanout.sh/inference-eng/curriculum/12-03.md"
access: "pro-preview"
---

# Nsight Systems

Profile a serving process with NVIDIA Nsight Systems: the timeline's rows, a window on decode, three readings of it, and what the timeline cannot show.

- Access: Fanout Pro (public preview)

## Public preview

Every instrument this module has held so far reports from inside something: a stopwatch inside the caller, a panel inside the engine, a profiler inside one Python process. The question that position cannot answer, what the whole machine was doing around the process, is the one the PyTorch profiling lesson handed forward, and this lesson is the instrument built for…

## In this lesson

- The timeline's rows
- A window on a serving process
- Three readings of a decode window
- Names on the timeline
- The shape's limit

## Continue learning

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