no, you should be able to detect network speed, because tcp uses smart
end points, and dumb relays.

basically, if the network is "slow", packets will be dropped before
they reach the other end, and have to be resent. this should manifest
it self in node as write()=== false on your HttpResponse object, and a
'drain' event it is ready again.

if you stop writing to a stream when it asks, then this should
theoretically be something like the network speed. of course, you
could have the client stream something back, too.

here are two modules for measuring the throughput of streams,

https://github.com/fent/node-streamspeed
https://github.com/dominictarr/probe-stream

keep in mind that it may not be accurate if you are piping to the
network with a stream that doesn't respect pause.

it's probably best to have the detector on the receiving end.

On Mon, Jul 30, 2012 at 12:04 PM, Mark Hahn <m...@hahnca.com> wrote:
> I assume you mean the network speed to a particular client on each session.
> The client side is almost always the limiting factor and will vary from
> session to session.
>
> I would do it by measuring the page load time in javascript and then sending
> the test result to the server, maybe using ajax, and then saving this info
> in the server's session store for that particular client.  The server can
> then adjust its behavior however it wants.
>
> On Sun, Jul 29, 2012 at 4:35 PM, jerome <jeromecoving...@gmail.com> wrote:
>>
>> I guess my point is, if anybody has any information on the process of
>> detecting network speeds, and adjusting behavior between the client/server
>> in response, I'd be interested in exploring what's possible.
>>
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