ROS2 The 10Hz Navigator

Hard Performance Debug 0% pass rate
#mutex#threading#performance#nav#lock-contention#30hz#performance-debug

Practice the ROS2 The 10Hz Navigator coding problem in Performance Debug. Browser-based execution with automated grading — no local ROS install required. 0% of engineers pass this challenge.

Performance Bug

Navigation planner should run at 30Hz. It's running at 10Hz. CPU is not the bottleneck.

Symptoms

  • Navigation planner target: 30Hz
  • Measured: ~10Hz
  • CPU: only 40% utilization
  • Memory: normal
  • No error messages

What you don't know

  • What's throttling the planner to 10Hz
  • Why CPU is low if the planner can't run at 30Hz

Your task

Profile the planner, identify the bottleneck, and fix it to achieve ≥ 25Hz.

Performance Debug format: The system runs but at wrong speed. Find and fix the bottleneck.

Frequently asked questions

What is the ROS2 The 10Hz Navigator practice problem?

It is a hands-on Performance Debug challenge on SimuCode where you implement and run ROS2 code in the browser with runtime-verified tests.

How do I practice ROS2 The 10Hz Navigator online?

Open this page, sign in, and solve the problem in the built-in IDE. Your solution is graded against real ROS2 execution checks.

What skills does ROS2 The 10Hz Navigator test?

This Hard problem focuses on mutex, threading, performance skills used in robotics interviews and production systems.