3 ms·
It might actually, mostly due to buffer bloat on some modem stacks. The anti-buffer bloat stuff from the recent DOCSIS (I forget if it was 3.0 or the one after
by mjevans 9y ago
It might actually, mostly due to buffer bloat on some modem stacks.
The anti-buffer bloat stuff from the recent DOCSIS (I forget if it was 3.0 or the one after) are supposed to help a LOT with latency issues. Not as good as fiber but close enough that global distance issues become dominant again.
- bb88 9y agoedited: DOCSIS 3.1 adds the Active Queue Management. There's a lot of reason to believe this is true. I noticed that in some ping tests when I had a cable modem, RTT went to over 3 seconds for a ping to google when the uplink was saturated.
- Animats 9y agoThe "buffer bloat" guy has been useful. I've been arguing against big FIFO queues for decades, but he's more into PR and visibility than I am. Any place you have a major choke point, especially home router uplink connections, you need QoS, or fair queuing, or something, or queue delays will go through the roof. At least send the ACKs first.