Linux Kernel Journey

Dec 21, 2025 · Artificial Intelligence

How to Trace Intel NPU Kernel Driver Operations Using eBPF and bpftrace

This tutorial explains how to use eBPF and bpftrace to monitor the Intel NPU kernel driver on Lunar Lake and Meteor Lake CPUs, mapping Level Zero API calls to kernel ioctls, tracking memory allocation, IPC communication, and identifying performance bottlenecks through detailed function‑call statistics.