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2014-12-17 »

From a presentation by Srikanth Sundaresan.  In short: latency matters, a lot.  Things stop getting better after 16 Mbps or so.

He claims that DNS prefetch (prepopulating a local DNS cache with popular names) can speed things up by about 10%.

Related 
Systems design 2: What we hope we know (2023)
A little bump in the wire that makes your Internet faster (2018)
Unrelated 
Honestly (2014)

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