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In the "About" section of SO, it says that it is "Fast. Very, very fast."

What is it that makes it so fast? DB? MVC? What?

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What do you consider fast. For me on a 100MBit net, a listing page HTML only download takes 1.42seconds. Thats pretty slow in my standards. –  kd304 Jul 31 '09 at 18:44
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I think he is asking because the site specificly states that it is very very fast. –  Troggy Jul 31 '09 at 18:46
    
We'll, I answered the wrong question.... –  Tyler Carter Jul 31 '09 at 18:48
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Lots and lots of little imps which operate all the machinery behind the curtain. –  TheTXI Jul 31 '09 at 19:00

2 Answers 2

up vote 7 down vote accepted

In this answer lies everything that StackOverflow is built with. Using the right tools coupled with solid programming is what makes it fast. However, it doesn't hurt that the servers are cooled with liquid cocaine.

Also, check out the data dump schema. A well-designed database and indexes are absolutely paramount to speed.

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+1 - cocaine's a helluva drug. lol –  Jason Jul 31 '09 at 18:47
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that's all there is in their db? really? –  Jason Jul 31 '09 at 18:59
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@Jason: No, that's just some of what's in their db. There's obviously stuff that they haven't dumped out. But it's at least a taste. –  Eric Jul 31 '09 at 19:04

I don't think speed is referring to the actual speed of the site, but rather the time it requires to get answers. It's fast in the sense that you get answers to your questions quickly.

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interesting. of course, as a programmer, when i hear that something is fast, i immediately thing page loads :) –  Jason Jul 31 '09 at 18:51
    
I answered THIS question, but deleted it since someone told me I was answering the wrong question. Oh wells. –  Tyler Carter Jul 31 '09 at 19:14

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