4 ms·

You're both right and wrong. You're right because serious internet lag issues stem from problems along the line, or simple physical distance. However they're al

You're both right and wrong. You're right because serious internet lag issues stem from problems along the line, or simple physical distance. However they're also right to advertise with bandwidth, because bandwidth does impact lag. On a 10MBit line, you will need 10 ms to upload 12.5kbyte, and another 10 ms to download the same as the response from the server, making turnaround time for such a package 20 ms. That's more than one whole frame for an application running at 60 fps. With a 1000 MBit line, the turnaround time for the same will be 0.2ms, basically nothing. On the other hand: For both cases you need to add the distance as a flat factor, so whether you notice it or not depends on whether you're communicating to a server close by (20-50ms) or one a continent away (150-300ms).

barrkel 13y ago
"With a 1000 MBit line, the turnaround time for the same will be 0.2ms, basically nothing" How do you figure this? That doesn't follow at all. The proverbial[1] van full of microSD cards may have much more bandwidth than a 1Gbps line, but it will never turn around in 0.2ms. [1] http://www.tidbitsfortechs.com/2013/09/never-underestimate-the-bandwidth-of-a-station-wagon-filled-with-backup-tapes/ http://www.tidbitsfortechs.com/2013/09/never-underestimate-t... - 67Tbps estimated bandwidth for a station wagon going between LA and NYC.
- Mithaldu 13y ago
  Please read the sentence following the sentence after which you paused to comment. :)
- backprojection 13y ago
  his point is that bandwidth sets a lower limit on lag, for a fixed packet size. high bandwidth is a necessary condition, but not sufficient.
- backprojection 13y ago
  his point is that bandwidth sets a lower limit on lag, for a fixed packet size. high bandwidth is a necessary condition, but not sufficient.
- emerongi 13y ago
  If you were to request 67Tb from LA, the response would reach you faster by van than by cable - which is "less lag".

barrkel 13y ago

"With a 1000 MBit line, the turnaround time for the same will be 0.2ms, basically nothing" How do you figure this? That doesn't follow at all. The proverbial[1] van full of microSD cards may have much more bandwidth than a 1Gbps line, but it will never turn around in 0.2ms. [1] http://www.tidbitsfortechs.com/2013/09/never-underestimate-the-bandwidth-of-a-station-wagon-filled-with-backup-tapes/ http://www.tidbitsfortechs.com/2013/09/never-underestimate-t... - 67Tbps estimated bandwidth for a station wagon going between LA and NYC.

Mithaldu 13y ago
Please read the sentence following the sentence after which you paused to comment. :)
backprojection 13y ago
his point is that bandwidth sets a lower limit on lag, for a fixed packet size. high bandwidth is a necessary condition, but not sufficient.
backprojection 13y ago
his point is that bandwidth sets a lower limit on lag, for a fixed packet size. high bandwidth is a necessary condition, but not sufficient.
emerongi 13y ago
If you were to request 67Tb from LA, the response would reach you faster by van than by cable - which is "less lag".