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Enhancing Network Measurement Accuracy Using Real-Time Operating Systems

This project investigates the effectiveness of Real-Time Operating Systems (RTOS) in improving the accuracy of network bandwidth measurement. Building on the existing ABWM tool developed by BPrope and Cprobe, modified by UCCS students under Dr. Chow's guidance, we analyze current methodologies, focusing on time gaps in sending processes. The project plan involves a detailed analysis of the existing tools, thorough research on RTOS, and porting the ABWM tool to RTLinux. We aim to identify improvements and assess the results to enhance network measurement reliability.

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Enhancing Network Measurement Accuracy Using Real-Time Operating Systems

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  1. Available Bandwidth Measurement Using Real Time Operating Systems Dennis S. Knoop

  2. Proposal The goal of this project is to study the effectiveness of using a Real Time Operating System to improve the accuracy of network measurement.

  3. Historical Background • BPrope and Cprobe developed by • Tool uses ICMP echo request • UCCS students, under the supervision of Dr. Chow, have modified the available bandwidth tool • Sending time gaps are still a problem

  4. Project Plan • Analyze current ABWM Tool • Research Real-Time Operating Systems • Load Real-time operating system • Port current ABWM Tool to RTOS • Analyze results

  5. Real Time Operating Systems • Basic Concepts

  6. UC/II • Strengths • Weaknesses

  7. RTLinux • Strengths • Weakneses

  8. RTLinux • Basic Concept • Modules • Scheduling • Threads

  9. ABWM Tool • Original Tool • Analysis • Improvements needed • Timing of initial time gaps • Re-Engineering/Port needed

  10. RTABWM Tool • Modification Made • Critical Code • Accuracy of results

  11. Linux Schedulers • SCHED_OTHER • SCHED_RR • SCHED_FIFO

  12. Comparison of Results

  13. Current Status • Analyzed current ABW Tool • Research Real Time Operating Systems • Chose RTLinux as RTOS of choice • Loaded RTLinux on viva.uccs.edu server • Ran sample/example programs • Working on Port of ABW Tool to RTLinux

  14. Conclusion • Result of testing • Future Work • Questions?

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