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Making data centres more energy efficient
Most modern websites store data in databases, and since database queries are relatively slow, most sites also maintain so-called cache servers, which list the results of common queries for faster access. A data centre for a major web service such as Google or Facebook might have as many as 1,000 servers dedicated just to caching.
Most modern websites store data in databases, and since database queries are relatively slow, most sites also maintain so-called cache servers, which list the results of common queries for faster access. A data centre for a major web service such as Google or Facebook might have as many as 1,000 servers dedicated just to caching.
