Getting Started with Embedded Linux Real-Time Optimization¶

Practical factors that affect latency and determinism on embedded Linux.

This English edition keeps the original illustrations and reproducible command or configuration examples.

Commands and configuration¶

# Ubuntu / Debian
sudo apt install rt-tests

sudo cyclictest -l 100000 -m -S -p 90 -i 200 -h 400

T: 0 ( 1234) P:90 I:200 C:100000 Min:    8 Act:   12 Avg:   14 Max:    876

Practical notes¶

Test each change on a recoverable target, keep logs from the boot or failure path, and record the exact kernel and userspace versions used in the result.