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Updating 3G profile
03-26-2013, 12:22 AM
Post: #1
Updating 3G profile
Hopefully this will be a lot less impactful than the default browser switch but it looks like the 3G mobile profile may be a bit optimistic, particularly the latency.

The current numbers are 2Mbps down, 1Mbps up with 150ms of latency.

There has been a fair bit of data released since the profile was set (including one that I worked on with Matt Welsh from Google):

http://www.slideshare.net/patrickmeenan/...e-beast/22
US Average was 344ms latency with 1.6Mbps down/768Kbps up.

http://www.slideshare.net/guypod/the-mob...numbers/22
Latencies more in the 100-300ms range and bandwidth all over the place from 500Kbps-4Mbps down and 500Kbps-1Mbps up.

Clearly the 150ms RTT on the current profile is on the fast side of things and probably too fast. The 2Mbps/1Mbps also appears to be a bit high.

I'm proposing a change to the settings for the "3G" profile to change to 1.6Mbps down, 768Kbps up and 300ms RTT (still with 0 packet loss to keep things nice and reproducible).

Thoughts?
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Messages In This Thread
Updating 3G profile - pmeenan - 03-26-2013 12:22 AM
RE: Updating 3G profile - andydavies - 03-26-2013, 02:53 AM
RE: Updating 3G profile - vovone - 03-26-2013, 07:07 AM
RE: Updating 3G profile - pmeenan - 03-27-2013, 01:12 AM
RE: Updating 3G profile - braincracking - 03-27-2013, 06:05 PM
RE: Updating 3G profile - pmeenan - 03-29-2013, 12:45 AM

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