Thursday, August 6, 2015

Recursion with PHP 7, HHVM 3.8, Javascript, Java and C/C++ (Update: Go, Zephir)

Lessons learned:
  • HHVM runs recursive function calls 20 times faster than PHP
  • HHVM runs recursive function calls as fast as Javascript
  • HHVM runs recursive function calls 3 times slower than Java
  • HHVM runs recursive function calls 5 times slower than C
  • HHVM runs recursive function calls 2 times slower than Go

Monday, August 3, 2015

For or Foreach? PHP vs. Javascript, C++, Java, HHVM (update: Go, Zephir)

Lessons learned:
  • Foreach is 4-5 times faster than For
  • Nested Foreach is 2-3 times faster than nested For
  • Foreach with key lookup is 2-3 times slower than Foreach without
  • C++ is 5-300 times faster than PHP running For/Foreach on Arrays
  • HHVM is 2-3 times faster than PHP
  • PHP 7 is 2-4 times faster than PHP 5.5
  • HHVM is currently no alternative to C++
  • Javascript is 2-20 times slower than C++/Java running For on nested Arrays
  • Go is 4-20 times faster than HHVM

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