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Benefits

  • Extensive Coverage – One library with 25+ scheduling algorithms for all scenarios.
  • Cross-Domain Utility – From embedded IoT to HPC and avionics.
  • Early Validation – Detect timing issues before deployment.
  • Customizability – Adapt scheduling strategies for proprietary systems.
  • Safety-Critical Ready – Validate compliance with standards like DO-178C and ISO 26262.

The Scheduler block in VisualSim manages task execution across processors, embedded systems, and RTOS environments. It supports a comprehensive library of over 25 scheduling algorithms, including Round Robin (RR), First Come, First Serve (FCFS), Priority-Based, Deadline Monotonic, Earliest Deadline First (EDF), Rate Monotonic Scheduling (RMS), and custom policies.

Schedulers are critical in every level of system design — from on-chip SoC task arbitration to flight avionics mission scheduling. With VisualSim, architects can experiment with different scheduling strategies, measure latency, throughput, and jitter, and validate performance for timing- and safety-critical applications.

Overview

Supported Standards

Key Parameters

  • Max_Scheduler_Length – Depth of scheduling queue.
  • Clock_Rate_MHz – Speed of task execution clock.
  • Time_Type – Defines timing resolution.
  • Task_Context_Switch_Time – Overhead of switching between tasks.

Parameter Snapshots

  • Parameter

Simulation Results

  • Timing Reports – Worst-case execution time (WCET), jitter, deadline misses.
  • Scheduler Comparison – Benchmark across 25+ algorithms.
  • Utilization Studies – CPU/memory resource use.
  • Real-Time Validation – Ensure timing guarantees under mission workloads.
  • Plot 1
  • Plot 2
  • Stats

Application

  • System-on-Chip (SoC) Design – Arbitration of compute resources across heterogeneous cores.
  • Flight Avionics – Real-time scheduling of mission-critical tasks.
  • Automotive Systems – ECU and domain controller scheduling under AUTOSAR and ISO 26262 constraints.
  • Industrial Automation – Robotics and control systems requiring deterministic timing.
  • Medical Devices – Safety-critical systems where missed deadlines are unacceptable.
  • Operating Systems & RTOS – Benchmark and compare scheduling strategies.

Integrations

  • Works with RTOS Builder, ARM, RISC-V, Power, and NXP processors.
  • Connects to NoC, memory controllers, and accelerators for full-system simulations.
  • Integrates into safety and fault-tolerant libraries for aerospace and automotive.

View Demo

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