Blocked site -
James Wilkinson
fedora at aprilcottage.co.uk
Tue Oct 23 06:14:53 UTC 2012
Tim wrote:
> Proxying can only speed things up, for you, if you access something that
> someone else has already accessed before you. *And* if that data is
> cacheable.
In general, true.
It doesn’t sound as though this service is conventional proxying,
though. It sounds like they’re dynamically rewriting web pages to reduce
the number of TCP/IP round trips. Since a round trip via a satellite
takes about half a second, there’s a lot of scope for speeding things
up.
I’ve been involved with a similar problem, with a site with lots of
small graphics hosted in the UK, and customers in Australia. Putting the
graphics on a content delivery network with Australian servers knocked
five seconds off page load time. Fedora netem was very useful in
demonstrating the effect of the ~0.3s round trip time.
James.
--
E-mail: james@ | “As for Nitel, the state telephone monopoly, the less
aprilcottage.co.uk | said the better, which might well be the company’s
| motto.”
| -- The Economist, about Nigeria
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