Presenter Information

Zhiguo liuFollow

Location

https://www.kennesaw.edu/ccse/events/computing-showcase/fa25-cday-program.php

Document Type

Event

Start Date

24-11-2025 4:00 PM

Description

Industrial robot arms often run 500–1000 Hz control loops on general-purpose Linux. Most cycles are on time, but rare long scheduling delays can cause visible end-effector jitter, force spikes, and unstable insertion behavior. Static tuning of priorities and budgets cannot fully remove these long-tail outliers without wasting CPU. This work asks whether a lightweight adaptive layer on top of SCHED_DEADLINE can reduce high-percentile latency while keeping good utilization.

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Nov 24th, 4:00 PM

GRP-21187 Adaptive SCHED_DEADLINE on Linux for Robotic-Arm Control

https://www.kennesaw.edu/ccse/events/computing-showcase/fa25-cday-program.php

Industrial robot arms often run 500–1000 Hz control loops on general-purpose Linux. Most cycles are on time, but rare long scheduling delays can cause visible end-effector jitter, force spikes, and unstable insertion behavior. Static tuning of priorities and budgets cannot fully remove these long-tail outliers without wasting CPU. This work asks whether a lightweight adaptive layer on top of SCHED_DEADLINE can reduce high-percentile latency while keeping good utilization.