https://www.comentum.com/magento-vs-oscommerce-vs-zen-cart-comparison.html speed test done on ecommerce sites - oscommerce is faster than open cart and others.. comentum is more fatser
https://www.comentum.com/ruby-on-rails-vs-php-comparison.html in this link he says hhvm is faster for php than zend engine work it is using currently https://hhvm.com/ https://hhvm.com/ https://www.quora.com/Why-isnt-Facebooks-hack-language-more-popular hhvm difficult to host
using frameworks reduce the speed of application than core php almost 4000 times. bellow link displays how slow using frameworks with simple programme. https://www.comentum.com/ruby-on-rails-vs-php-comparison.html
this can be used to measure distance or to measure size of the boxes that can be separated or graded automatically. good for transport or retail business.