zydron
03-10-10, 15:57
CDN alphas internal tests
It is very technical
--------------------
Hello,
Does the CDN may be interesting for "my site"?
Consider a Japanese site hosted in Japan.
For example http://www.ntt.com
You can visit it and see just what happens in terms of speed. Think back to the pages
you've already seen.
We will simulate the CDN site at OVH. To do this have to lie and force the DNS redirection www.ntt.com to the CDN IP. This can be done with the file "hosts"
directly on your computer.
LinuxWindowsCode:# Echo "91.121.215.102 www.ntt.com ntt.com">> /etc/hosts
Edit
c:\windows\i386\hosts
gregoryfenton addition:
or
c:\windows\system32\drivers\etc\hosts
and addEmpty the cache and restart your browser (for cutting keep-alive connections).Code:91.121.215.102 www.ntt.com ntt.com
You can now repeat the visit and see difference. The visit is faster if there is a lot
visitors to the site as the first query is slow then the following quick as hidden.
What have we proven? That the use of cache close to the visitor speeds up access (seriously) to the cached site. In the case of ntt.com load time is divided by 10 ... at least 10 ...
PS. at the end of the test list to remove the "hosts"
If your website is your visitor to Europe and Japan it has the same effect. With the (future) on each CDN continent, the cache is close to the visitor. The first visit
is "normal / slow" and the following very fast, as if the site was hosted directly at 5 locations over the world.
We see this acceleration www.ntt.com with the hosts ...
I think there will still two weeks to confirm infrastructure then we will move to deployment in Europe, USA, Singapore, Japan and Brazil may be.
It is believed that the service could begin in Europe later this month and we should make the rest of the world to the end of the year. It's a matter of peering
to negotiate in North America / South Asia ...
The limits of the system:
the URL that sends the "Set-Cookie" are not hidden.
Normal ... If you put "Set-Cookie" on index.html all queries will be slow index.html. It
better to make a (small) URL next to "Set-Cookie" and to call as an image per page
"Index.html" (and all others).
Regards
Octave