Re:Examining IPv6 Performance
by the_mitsuhiko on Sunday December 06, 2015 @01:23PM
(#10686010)
The problem there is probably the DNS resolution. I like the way apple does it: they resolve AAAA and A in parallel. Whatever comes back first is being used for the connection attempt. Much better than waiting for a ~5 second timeout on AAAA before calling back to A.
[ Parent
| on HN ]
This is no longer the case. Their implementation of Happy Eyeballs now prefers IPv6 over IPv4. This is as of iOS 9 and El Capitan.
Re:Examining IPv6 Performance
by the_mitsuhiko on Sunday December 06, 2015 @02:18PM
(#10686205)
> This is no longer the case. Their implementation of Happy Eyeballs now prefers IPv6 over IPv4. This is as of iOS 9 and El Capitan.
It prefers, but only if it gets a response within 25milliseconds. It still queries AAAA and A in parallel.
> It prefers, but only if it gets a response within 25milliseconds. It still queries AAAA and A in parallel
Correct. The large technology companies that shape the world are indicating their preference and shift towards an IPv6 world, yet you still claim that you see no benefit? You don't want to be on board with them?
Re:Examining IPv6 Performance
by the_mitsuhiko on Sunday December 06, 2015 @02:47PM
(#10686315)
> yet you still claim that you see no benefit?
Did you reply to the wrong thread? I did not indicate my preference here, I replied to OPs question about why his server might be slow and what other systems are doing.