Bug #2428

Abnormally low UDP performance on DragonFly 3.1

Added by ftigeot almost 4 years ago. Updated almost 4 years ago.

Status:ClosedStart date:10/03/2012
Priority:HighDue date:
Assignee:-% Done:


Target version:-


Using net/iperf to measure UDP throughput performance on various
ethernet interface, I constantly get values of 1.05 Mb/s on recent
DragonFly 3.1 systems

Tested both with IPv4 and IPv6
Tested with 1Gb/s and 10Gb/s interfaces (em, re and ixgbe drivers)


#1 Updated by ftigeot almost 4 years ago

  • Status changed from New to Closed
  • % Done changed from 0 to 100

And this is actually an iperf feature: default udp stream tests are limited to 1Mb/s

More than 800 Mb/s transfer speeds are possible on most ethernet interfaces without needing to do much tuning. Closing.

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