Networking Solution - Intro to Computer ScienceYouTube↗  IA↗(long shot)
Education  795 views 5 likes 1 dislikes   23 Feb 2015
Udacity 651K subscribers United States YouTube↗


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In this problem, here at Udacity we're trying to upload our videos to YouTube,
In questo problema, qui ad Udacity stiamo cercando in inviare i nostri video ad YouTube
but we're having a hard time because it's taking a really long time
ma abbiam incontrato difficoltà perchè ci vuole veramente molto tempo
to upload these multi-gigabyte files.
per inviare quesi file da diversi gigabyte
What do we need to do to fix this problem?
Cosa dobbiamo fare per risolvere il problema?
First let's consider latency.
Per prima cosa consideriamo la latenza
Latency is the time it takes something to go from Udacity to YouTube.
La latenza è il tempo che impiega qualcosa per andare da Udacity a YouTube
Well, if we consider the fact that the video is being broken up into smaller chunks,
Bene, se consideriamo il fatto che il video viene spezzato in pezzi più piccoli
the amount of time it takes to send 1 chunk over
il tempo che ci vuole per inviare uno spezzone
is probably going to be on the order of something like 100 milliseconds.
probabilmente sarà nell'ordine di qualcosa tipo 100 millisecondi
Even if we reduce this to 1 millisecond,
Anche se riduciamo questo ad 1 millisecondo
sending only 1 chunk at a time, considering there are 3 gigabytes worth of data,
inviando solo uno spezzone alla volta, considerando che ci sono 3 gigabyte di dati
is going to go almost just as slow.
avrebbe la stessa lentezza
We might save 99 milliseconds.
Potremmo risparmiare 99 millisecondi
In the grand scheme of things, this isn't really going to fix the problem.
Nel grande schema delle cose, questo non risolverà veramente il problema.
Next let's consider bandwidth.
Ora consideriamo la larghezza di banda
If instead we increase the bandwidth of our connection,
Se aumentiamo invece la larghezza di banda della nostra connessione
which allows us to send larger chunks over from our source to our destination,
riusciamo ad inviare spezzoni più grandi dalla sorgente alla destinazione
we really solve the problem.
ed in effetti risolviamo il problema
Here the latency isn't a big issue compared to the size of the files we're sending,
Qui la latenza non è un grosso problema confrontato con la dimensione dei file che stiamo inviando
and it's much more important to send larger chunks over
è molto più importante inviare spezzoni più grandi invece che
than measuring the time it takes a single chunk to go from Udacity to YouTube.
misuare il tempo che serve ad un singolo spezzone per andare da Udacity a YouTube
So the answer is we want to increase the bandwidth.
Quindi la risposta è: vogliamo aumentare la larghezza di banda
The last 2 options were based on the content of the video:
Le ultime due opzioni erano basate sul contenuto del video
the number of colors we have and how much bad hair we have in the video itself.
il numero di colori che abbiamo e di quanto fossero orribili i nostri capelli
While these may affect the file size a bit, it doesn't make that much of a difference.
Mentre ciò può influenzare un poco la dimensione del file, non fa veramente molta differenza
And really, the best way to fix this problem is by increasing our bandwidth.
Il miglior modo per risolvere il problema è aumentare la larghezza di banda
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