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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.
OS Components & Operations
QNX Process Launch and Monitor Service User's Guide
The QNX Process Launch and Monitor Service (QPLMS) user's guide is intended for developers who are implementing the service in a QNX OS-based system.
Configuration file changes between QPLMS versions

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.
- Quickstart Guide
- System Architecture
  The System Architecture guide accompanies the QNX OS and is intended for both application developers and end-users.
- OS Components & Operations
  - Boot Optimization Guide
    The Boot Optimization Guide describes techniques you can use to reduce the time from your board's initial power on until you have a fully functional QNX system running on the board.
  - Building Embedded Systems
    The Building Embedded Systems guide is intended for developers who are developing or building BSPs for QNX OS embedded systems.
  - Customizing a BSP
    While QNX provides Board Support Packages (BSPs) for many common platforms and their individual variants, in some cases, you need a BSP for a board that QNX does not provide. If this is the case, you can modify a QNX BSP or develop your own.
  - Device Publishers Developer's Guide
  - High Availability Framework Developer's Guide
  - High-Performance Networking Stack (io-sock) User's Guide
    This guide contains instructions for implementing and using the QNX OS High-Performance Networking Stack and its manager, io-sock.
  - PCI Server User's Guide
  - Performance Tuning User's Guide
  - QNX Filesystem for Safety User's Guide
  - QNX Process Launch and Monitor Service User's Guide
    The QNX Process Launch and Monitor Service (QPLMS) user's guide is intended for developers who are implementing the service in a QNX OS-based system.
    - QNX Process Launch and Monitor Service (QPLMS) overview
      QPLMS manages and optimizes process execution by launching dependency-driven components — often in parallel — using an action queue and worker threads to support both automated and user-triggered tasks.
    - Configure QPLMS
    - QPLMS usage differences between QOS 2.2.x and SDP 8.x environments
    - Configuration file changes between QPLMS versions
  - SMMUMAN User's Guide
  - System Analysis Toolkit (SAT) User's Guide
  - Technotes
  - User's Guide
    The QNX OS User's Guide is intended for all users of a QNX OS system, from system administrators to end users.
- Graphics
- Programming
- System Security Guide
  The QNX System Security Guide is intended for both system integrators who are responsible for the security of a QNX OS system and developers who want to create a QNX OS resource manager free from vulnerabilities.
- Utilities & Libraries
- Migrating to 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.
QNX Hypervisor and QNX Hypervisor for Safety
The QNX Hypervisor and QNX Hypervisor for Safety products allow you to run multiple OSs on a target system so you can separate critical and non-critical functions, support a wide variety of applications, and reduce hardware costs.
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.

Configuration file changes between QPLMS versions

This section documents changes to the configuration file specification between QPLMS 1.0 and 2.0.

If you are upgrading, review these changes and update your configuration files accordingly:


Config file keyword	Change
priority	Clarified that the minimum value for the sporadic scheduling parameter `max_pending_replenishments` is 1.
priority	SDP 8.0 introduced new limits to what priorities can be used. Due to this, the range of priority has been updated: The range of priority is 1-253. For sporadic scheduling, the range of priority is 2-253. For sporadic scheduling, the range of low_priority is 1-252.
rlimits	New rlimits for SDP 8.0 have been added: CHANNELS MQUEUE_NUM MQUEUE_SIZE SHM_HANDLES
runmask	The runmask keyword can only be used on QOS 2.2.x. For SDP 8.x, refer to the cluster keyword if you need to set the runmask for the task.
cluster	The cluster keyword can only be used on SDP 8.x. To set the task's runmask on QOS 2.2.x, refer to the runmask keyword.
spawn_priority	The new keyword spawn_priority was added in QPLMS 2.0. Refer to the spawn_priority section of this documentation for more details.

Page updated: June 11, 2026