Any reason www.python.org is slow?

Antoine Pitrou solipsis at pitrou.net
Sat Jul 10 10:17:57 EDT 2010


On Sat, 10 Jul 2010 16:03:24 +0200
"Martin v. Loewis" <martin at v.loewis.de> wrote:
> 
> That is a common myth. If your computer doesn't have any IPv6
> connectivity, all is fine. The web browser will fallback to IPv4
> immediately (*), without sending out any IPv6 datagrams first.

Ok, I suppose the explanation wasn't factually exact.

> If your computer does have IPv6 connectivity, but it's broken
> (i.e. you have a gateway, but eventually packets are discarded),
> you see the IPv4 fallback after the IPv6 timeout. The IPv4 connection in
> itself then would be fast.

I think it's what most users experience when they are talking about
this problem. It manifests itself on many Linux setups.

Regards

Antoine.





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