May 26, 2018

Network capacity tester

The program thrulay is used to measure the capacity, delay, and other performance metrics of a network by sending a bulk TCP or UDP stream over it.

Special features of thrulay include

  • For TCP, ability to measure round-trip delay along with throughput
  • For UDP, ability to measure
    • one-way delay, with quantiles
    • packet loss
    • packet duplication
    • reordering
  • For UDP, the ability to send precisely positioned true Poisson streams microsecond errors in sending times
  • Human- and machine-readable output ready to be fed to gnuplot

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