Facebook's PHP code impact on the Environment _php tutorial

Facebook provided information about the size of the server one months ago, they used about 30,000 servers, and most servers ran PHP code to generate the user's social page. The east wind of climate change talks in Copenhagen: How much carbon dioxide will these servers generate? If PHP code is replaced in other languages, how much carbon dioxide emissions will be reduced?

The power of a single server is approximately 200 watts, cooling and other overhead of about 400 watts. In the United States, the average production of 560 grams of carbon dioxide per kilowatt-hour, Facebook's servers produce a total of 59 000 tons of carbon dioxide. If the server running PHP code about 25 000, if the C + + code to replace the PHP code, according to C + + code efficiency is 10 times times the PHP code calculation, about 22 500 servers can be shut down, which will reduce 49 000 tons of carbon dioxide emissions. Of course, this is a bit unfair to Facebook, whose servers account for only a small fraction of the total number of servers running PHP code around the world.

http://www.bkjia.com/PHPjc/508444.html www.bkjia.com true http://www.bkjia.com/PHPjc/508444.html techarticle Facebook provided information about the size of the server one months ago, they used about 30,000 servers, and most servers ran PHP code to generate the user's social page. Drive brother Ben Ha ...

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