portsnap mirror servers

Oliver Brandmueller ob at e-Gitt.NET
Wed Apr 19 07:50:34 UTC 2006


Hello,

On Wed, Apr 19, 2006 at 01:28:56AM +0100, Chris wrote:
> On 18/04/06, Colin Percival <cperciva at freebsd.org> wrote:
> > Why do you think there should be an .eu mirror?
> 
> Whilst portsnap is fast, it is a noticeable speed difference when
> using from eu servers, I also think its a good idea for redundancy.

I did not yet check in the sources or with tcpdump, but from the 
htrougput I see, I'd guess, there's a lot of sequential two-way 
communication involved. That kind of traffic is massively influenced by 
latency. While most sites in europe are reachable for me with a latency 
of 15-30ms, I have between 120 and 200 ms to most sites across the 
atlantic.

Maybe this is old-school and not valid today anymore as it was 10 years 
ago, but keeping traffic local and not pushing the same data through the 
big exchanges and long distance lines again and again stil seems 
reasonable to me for various reasons.

I also vote for more geographic distribution and a local mirror in 
europe. While not having any usage data (current usage, hstroy, 
perspectives), I cannot decide of course, if the time has already come, 
but I think time will come in foreseeable future.

- Oliver

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