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Brent Sordylthe company has discovered that interrupts on the servers' Ethernet controllers are a bottleneck. So Facebook rewrote the controllers' drivers to scale on multicore systems. Facebook is also experimenting with solid-state drives.
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Andrew BaderaMany of the social network's pages and features are created using PHP ... But Facebook also develops complex core applications using a variety of full-featured computer languages, including C++, Java, Python, and Ruby.
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