memory - Julien Pauli - My blog

Julien Pauli - My blog

memory

A collection of 5 posts

Huge Page usage in PHP 7

Recall on memory paging Memory paging is a way Operating Systems manage userland process memory. Each process memory access is virtual, and the OS together with the hardware MMU must translate that address into a physical address used to access the data in main memory (RAM). Paging memory is dividing

PHP strings management

Introduction Strings management has always been a "problem" to consider when designing a C program. If you think about a tiny self-contained C program, just don't bother with strings, use libc functions, or if you need to support Unicode, use libraries such as ICU. You may

Segmentation Fault (Computer memory layout)

That word : segmentation fault A quick word on what's this blog post is about. When I make mistakes in my code, it very often generates a "segmentation fault" message, often shorten as "segfault". And then, my collegues and managers come to me exclaming "

Zoom on PHP objects and classes (PHP 5)

PHP objects introduction Everybody uses objects nowadays. Something that was not that easy to bet on when PHP 5 got released 10 years ago (2005). I still remember this day, I wasn't involved in internals code yet, so I didn't know much things about how all

PHP memory and Zend Memory Manager (PHP 5)

Introduction This blog post is gonna introduce you the dynamic memory management layer PHP relies on : Zend Memory Manager (ZendMM). We'll detail why we need such a layer, what it does, how to customize it, how to interact with it from PHP land. Recall on C memory management