Schedsim

A suite of tools for simulating the execution of multicore real-time schedulers.

Schedsim is an event-driven discrete simulator for multicore real-time scheduling research. It models task execution on heterogeneous processors with DVFS/DPM support, CBS bandwidth servers, and EDF scheduling.

Getting Started

• Getting Started
  • Core Concepts
  • Prerequisites
  • Installation

C++ API Reference

• C++ API Overview
  • Core Library
    • Types
    • Engine
    • Platform
    • Hardware Model
    • Tasks and Jobs
    • Events and Timers
    • Trace Writer
    • Energy Tracker
    • Errors
  • Algo Library
    • Schedulers
    • CBS Servers
    • Allocators
    • Reclamation Policies
    • DVFS Policies
    • DPM Policy
    • Utilities
    • Errors
  • I/O Library
    • Platform Loading
    • Scenario Loading
    • Scenario Injection
    • Scenario Generation
    • Trace Writers
    • Metrics
    • Errors

Python API Reference

• Python API Overview
  • Installation
  • Import Convention
  • Unit Conventions
  • Module Structure

Tutorials

• Tutorials
  • Your First Simulation
  • Generating and Loading Scenarios
  • DVFS and Energy Management
  • Multi-Cluster Allocation
  • Trace Analysis and Metrics
  • Python Quick Start
  • Parameter Sweeps and Policy Comparison
  • Visualizing Simulation Results

Reference

• CLI Reference
  • schedsim
  • schedgen
  • schedview
  • alloc
• JSON Formats
  • Units
  • Platform JSON
  • Scenario JSON

Quick Start

1. Generate a task set:

   schedgen -n 10 -u 3.9 --umax 1 --period-mode range -d 100 -o scenario.json
   

2. Run a simulation with GRUB reclamation:

   schedsim -i scenario.json -p platforms/exynos5422LITTLE.json --reclaim grub -o trace.json
   

3. Analyze the trace:

   schedview trace.json --energy --response-times