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QNX Toolkit for Visual Studio Code
This User's Guide describes the QNX^® Toolkit for Visual Studio Code. The guide introduces you to the QNX Toolkit by explaining the QNX development environment and how to build, run, and debug your QNX^® Operating System (OS) applications and systems.
Using the System Profiler
You can use the System Profiler to render different types of trace analysis, such as graphs and tables.
Analysis views
The QNX Toolkit System Profiler displays kernel event trace data. You can view different aspects of the application's activity and examine events within a specific time range in detail. There are also several views that list helpful information, such as the Timeline and CPU Usage view.
Event Density view
The Event Density view shows the event count over time for a trace.

QNX Momentics IDE User's Guide
This User's Guide describes version 8.0 of the Integrated Development Environment (IDE) that's part of the QNX Tool Suite.
QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
QNX Software in the Cloud
QNX Software in the Cloud enables developers to use the QNX software in Amazon Web Services (AWS) and Microsoft Azure (Azure).
QNX Toolkit for Visual Studio Code
This User's Guide describes the QNX^® Toolkit for Visual Studio Code. The guide introduces you to the QNX Toolkit by explaining the QNX development environment and how to build, run, and debug your QNX^® Operating System (OS) applications and systems.
- About the QNX Toolkit
  The QNX Toolkit for the Visual Studio Code provides VS Code users with access to the world-class POSIX-based QNX development environment.
- Using the Target Navigator
  The QNX development environment consists of a host and a target machine.
- Developing QNX Projects
  The QNX Toolkit contains wizards for creating projects based on specific programming languages.
- Debugging and Launching
  The QNX Toolkit allows you to debug or run an application remotely on a QNX target.
- Using the System Profiler
  You can use the System Profiler to render different types of trace analysis, such as graphs and tables.
  - Initiating kernel logging
    You can use kernel logging on a selected target. When you run the logging command, QNX Toolkit attempts to find a launch configuration for the selected target in the currently active Workspace. If none is found, then it creates the default launch configuration and runs it.
  - Managing traces
    Opening a trace file starts the System Profiler and displays its dashboard views.
  - Analysis views
    The QNX Toolkit System Profiler displays kernel event trace data. You can view different aspects of the application's activity and examine events within a specific time range in detail. There are also several views that list helpful information, such as the Timeline and CPU Usage view.
    - Event Table view
      The Event Table view displays the raw events in table form. When you select an area of the Overview graph, the Event Table view updates to reflect the chosen data.
    - Timeline view
      The Timeline view shows the chronology of the logged kernel events of a trace.kev file. You can hover over the color bands to display relevant information. You can also configure the colors and thickness settings. Go to com.qnx.doc.qnxtoolkit.user_guide/topic/timeline_trace_analysis_view.html#timeline_trace_analysis_view__colors for details.
    - Event Density view
      The Event Density view shows the event count over time for a trace.
    - CPU Usage view
      You can use the CPU Usage view to display recorded CPU usage statistics. You can zoom in / out over time, and filter the list of process owners to view CPU information.
  - Properties
    The PROPERTIES list shows you high level information regarding the .kev file under analysis.
  - Filtering traces
    Using the filters, you can globally restrict which owners and events are displayed in the System Profiler dashboard views.
- References
  The reference topics provide information about QNX Toolkit features and workflows that aren't covered in the other chapters.
- Tutorials
  Tutorials aim to help you understand how to use QNX Toolkit with your own applications by providing step-by-step guides.
- Glossary
  To make best use of the QNX Toolkit, we recommend that you become familiar with the following terms, which are used throughout the user interface and documentation.
QNX Hypervisor User's Guide
This User's Guide explains the QNX hypervisor architecture and provides instructions for installing and running a QNX Hypervisor system, changing system components and configuration, and using hypervisor features such as virtual devices (vdevs).
Typographical Conventions, Support, and Licensing
This section describes the typographical conventions used throughout the documentation, explains how to obtain technical support, and provides some information about licensing.

Event Density view

QNX Toolkit1.1QNX Toolkit User's GuideDeveloperSetup

The Event Density view shows the event count over time for a trace.

Opening the view

Event Density is one of the dashboard views in the System Profiler.

To open the view:

Click QNX SYSTEM PROFILER, then select a .kev file.
Click DASHBOARDS > Event Density.
A graph of events over time is displayed:

Toolbar actions

You can take the following actions from the toolbar in the Event Density view:


Toolbar actions	Description
Show / Hide Event Density	Auto-adjusts the vertical scale (height) so that all content fits neatly in the view. Turn off to view 100% of the graph.
Zoom In	Zoom in to reveal fine-grained detail on the Event Density.
Zoom Out	Zoom out to obtain a higher level overview of system activity.
Home	Reset zoom.
Export	Export the event density values to a CSV file with headers.
Sync/Desync Global Filters	Sync the event density data with the owner and event filters in the System Profiler.
Sync/Desync With Other Views	Enable two-way sync between the event density data and the other System Profiler views. This aligns all views to the same time window.

Event Table synchronization

When you click on a specific event in the Event Density graph, the Event Table view jumps to the selected event:

Page updated: September 22, 2025