QGIS Profiler Plugin

The QGIS Profiler Plugin extends the built-in QGIS Profiler development tool, providing a broader Python API for profiling QGIS and QGIS plugins.

Features

• Broader Python API for profiling via the core library (qgis_profiler)

• Ability to filter and search profile events

• Event recording with various meters (recovery, thread health, map rendering)

• cProfile integration for Python code profiling

• Export profile results to .prof files for analysis with gprof2dot and snakeviz

• Performance meters for detecting anomalies automatically

• Configurable settings

Requirements

• QGIS version 3.40 or higher (including QGIS 4)

• Python 3.12 or higher

Contents

• Getting Started
  • Installation
  • Usage
• Core Library (qgis_profiler)
  • ProfilerWrapper
  • Decorators
  • Event Recorder
  • cProfile Integration
  • Meters
  • Settings
• Plugin (profiler_plugin)
  • Using the Core Library Without the Plugin
• CHANGELOG
  • Unreleased
  • 0.1.0 (2026-04-07)