Ramine
3/15/2016 1:33:00 AM
Hello,
I have come to an interesting post...
Now i hope you have read my previous post titled:
"And here is how to do a simulation of the ecommerce websites"
Why i have done this mathematical calculations ?
To show you what permit exactly mathematical queuing theory ,
it permit to do a better QOS , and of course that's easy to
understand, but it permit also like in the Amdahl law of parallel
computing to model the ecommerce websites and to know how much the
ecommerce websites can handle of throughput and loads by
taking into account the Knee of the Network queue and the Client
queue, and it allows us to change theorically the characteristics
of the M/G/c queue of the database servers and the Network queue
and the Client queue to be able to do calculations before
adding empiracally more servers or more bandwidth , so
that's optimization and that's good for your pocket.
But i have come to an interesting post...because
this modeling of an ecommerce website with mathematical
Queing theory or simulation is not sufficient, because
it's necessary also to know how to limit the number of
connected internet users on the webserver to be able to
control the waiting time of the internet users to not go
beyond a not acceptable waiting time, and it's
important to give more priority to the write transactions
because that's critical for your pocket, because it makes
a company make more money, so my idea to realize
this requirement, is to use a FIFO synchonization semaphore
for each kind of database transactions such us read , write and delete ,
and you have to do a calculation of the time that
the internet users are waiting by computing it, if the time
go beyond an acceptable waiting time you will simply not process
those internet users and tell them to try to reexecute there
transactions again after a certain time... so, this requirement
and my solution that i have added is the right tool to make
a better QOS and to make your ecommerce website succeed.
Thank you,
Amine Moulay Ramdane.