Socket Performance

[sleddd at gmail.com]

On Mar 13, 9:33 am, "Brian Smith" <br... at briansmith.org> wrote:
> sle... at gmail.com wrote:
> > Sent: Wednesday, March 12, 2008 9:47 PM
> > To: python-l... at python.org
> > Subject: Socket Performance
>
> > Can anyone explain why socket performance (throughput) varies
> > depending on the amount of data send and recv are called with?
>
> > For example: try creating a local client/server (running on the same
> > computer) where the server sends the client a fixed amount of data.
> > Using method A, recv(8192) and sendall( ) with 8192 bytes
> > worth of data. Do this 100 times. Using method B, recv(1) and
> > sendall( ) with 1 byte worth of data. Do this 819200 times.
>
> > If you time both methods, method A has much greater
> > throughput than method B.
>
> Why is it faster to drink a liter of water a cupful at a time than to
> drink it out of an eyedropper?
>
> - Brian

Well, lets say you have a situation where you're going to be
alternating between sending large and small chunks of data. Is the
solution to create a NetworkBuffer class and only call send when the
buffer is full, always recv(8192)?