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How does Stack Overflow serve 60 million pageviews with 5 servers while Digg requires 500 servers to serve 200 million page views?

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migrated from stackoverflow.com Oct 21 '11 at 11:20

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Old infos... 95 million: highscalability.com/blog/2011/3/3/… –  xanatos Oct 21 '11 at 12:12
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Amongst our weaponry are such diverse elements as: fear, surprise, ruthless efficiency, an almost fanatical devotion to the Pope, and nice red uniforms –  waffles Oct 21 '11 at 12:52
    
And waffles :-) –  xanatos Oct 21 '11 at 13:29
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Because digg sucks ass. –  Won't Oct 21 '11 at 14:05
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1 Answer

There is a great difference in load when serving different types of content. Static, text based pages are very light, whereas active pages can impose a heavy load on a server.

The underlying data structure also plays a big part - using efficient techniques to load data from optimised databases for display can make a huge difference. Have a look at the ServerFault blog, where various aspects are discussed.

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