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Thursday | December 8, 2016
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Facebook Faster

Facebook has done a facelift of its code and added JIT Compiler to aid in a faster experience for the most popular social networking site on the planet. We already know Facebook added new processors to its servers soon after the six-core Istanbul processors were released last year.

Readwriteweb reports that code is now running up to 80% faster than before and asked a PHP expert, Richard Crowley to explain what a JIT Compiler is and what it does.

“Compiling PHP to code a CPU can directly execute certainly has performance implications. It would be silly to alter the workflow to be more like C or C++ by doing all parsing and compilation ahead of time. At the other end of the spectrum, it’s slow and out-of-fashion to interpret every statement within the runtime. A JIT (Just In Time) compiler compiles frequently-executed portions of the program to machine code for speed while maintaining the flexibility of interpreted code.”

 

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Stuart Davidson

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