Measuring the Impacts of the Preempt-RT Patch - Performance Analysis and Considerations

Explore the impacts of the Preempt-RT patch on Linux systems in this 31-minute conference talk by Maxime Chevallier from Smile. Delve into the performance improvements and deteriorations expected when using the Preempt-RT patch, based on real-life use cases. Examine the patch's effects on raw computing, network, and I/O performances, and gain insights into maintaining a BSP that utilizes the RT-Patch from a developer's perspective. Learn about simulation platforms, test benches, embedded products, and various tools for measuring system performance such as PerfTati, PIDstat, VMstat, and IPerfStress. Discover the intricacies of building a real-time operating system, including CPU idle states and devfs considerations. Gain valuable knowledge on optimizing and fine-tuning real-time capabilities in Linux systems.

Introduction
Simulation Platform
Test Bench
Embedded Product
RealTime Operating System
Linux
RT Path
Perf
Tati
NonRT tasks
PIDstat
VMstat
Context switches
PIDstats
IPerf
StressEnergy
CPU
Recap
Building a realtime operating system
CPU idle state
Devfs
Know your system
CPU idle
More information
Questions