View Single Post
  #1   Spotlight this post!  
Unread 09-11-2013, 21:32
Thad House Thad House is online now
Volunteer, WPILib Contributor
no team (Waiting for 2021)
Team Role: Mentor
 
Join Date: Feb 2011
Rookie Year: 2010
Location: Thousand Oaks, California
Posts: 1,094
Thad House has a reputation beyond reputeThad House has a reputation beyond reputeThad House has a reputation beyond reputeThad House has a reputation beyond reputeThad House has a reputation beyond reputeThad House has a reputation beyond reputeThad House has a reputation beyond reputeThad House has a reputation beyond reputeThad House has a reputation beyond reputeThad House has a reputation beyond reputeThad House has a reputation beyond repute
Timing of NetworkTables

Today I was trying to test the Latency in our system, and I set up a loopback test between the CRIO and our DS/Beaglebone. Using NetworkTables, I was seeing anywhere between 100-200ms of latency between sending and receiving. This seems really high. When I try pinging, it says it responds in less the 1ms, so its not the connection. Has anybody else tested this, or have any documentation on what the latency for NetworkTables is?

Also, I was trying to set up this test with UDP, but I could not get it to ever work. Has anybody else tried testing the latency of UDP, and if so how'd you actually get it to work.

Thanks
__________________
All statements made are my own and not the feelings of any of my affiliated teams.
Teams 1510 and 2898 - Student 2010-2012
Team 4488 - Mentor 2013-2016
Co-developer of RobotDotNet, a .NET port of the WPILib.