QnxTimeSync - A tool for measuring real precision of network synchronization in real-time operating systems

Authors:Pacner Jan, Ryšavý Ondřej, Švéda Miroslav
Licence:no - free
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iconpresentation_long.pdf9,32 MB2013-10-02 08:35:33
iconqnx_net_time_sync-master.zip11,2 MB2013-10-02 08:35:32
iconqnx_net_time_sync_master_results.zip15,4 MB2013-10-02 08:38:03
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Keywords:network synchronization protocols, degree of synchrony, jitter measurement, real-time operating systems
The created tool is intended for measuring the real precision of synchronization in a network of distributed nodes running real-time operating system. The meassurement is based on observing jitter of synchronously generated signals. The measuring environment consists of:
  • Developed measuring device based on FITKit platform
  • Traffic generator 
  • Software for end nodes that periodically generates the signal minimizing OS latency
This measuring environment enables to measure a degree of synchronization in a distributed system for different interconnecting topology and actual network load.
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