Quick, take a guess, what's the first hop latency to your home wireless router?
Below 1ms, right? Yeah, you wish!
Below are results from a quick test on my home router (Linksys E1550). Some lessons learned:
- 3-8ms median
- very different latency tails on different channels (1,6,11)
- running in mixed mode helps tame the long tails (do it, if you can)
- all tests on 2.4Ghz, unfortunately E1550 can't do 5Ghz
- for whatever reason, lots of "phantom" devices seem to like channel 11
Started with channel 6, mixed mode. Now running on channel 1, with N-only.. 2x difference for 90 percentile, and 1ms shaved off the median. Of course, these settings will change as different devices come online...
P.S. Rough methodology: ping 192.168.1.1 (5 minutes worth) | grep | cut | massage | R > results.gist