cisoun

Performance comparison between PHP vs Python vs Ruby

Here's a performance comparison between PHP vs Python vs Ruby done by doing a Fibonacci sequence of 35 iterations in each language. I tried to adapt the codes in order to have the exact same behavior.

Tested versions are the following:

➜ php --version   
PHP 8.0.3 (cli) (built: Mar  4 2021 20:39:15) ( NTS )
Copyright (c) The PHP Group

cisoun

<?php
  $uri = $_SERVER['REQUEST_URI'];

  # Serve static ressources.
  if (preg_match('/\.(?:png|jpg|jpeg|gif|css|js|svg)$/', $uri)) {
    return false;
  }

  function register($method, $route, $callback) {
    global $uri;

cisoun

Create a chroot environment in Arch

I wanted to use my cloud server to compile large projects for me.
For that, I needed to create a chroot environment to keep my main system clean and which will handle that process.

Here's how I did...

My chroot environment: /mnt/chroot

1. Installation

cisoun

/**
 * Custom wrapper using the Fetch API.
 */
const Fetch = {
  async get (url) { return this.request(url, 'GET'); },

  async post (url, data={}) { return this.request(url, 'POST', data); },

  /**
   * Do a request.

cisoun

/*
  Create a new stylesheet for "instagram.com" with the Stylus* extension and
  add the following lines to it to remove their goddamn popup.

  * Install it from there:
  Firefox: https://addons.mozilla.org/en/firefox/addon/styl-us/
  Chrome: https://chrome.google.com/webstore/detail/stylus/clngdbkpkpeebahjckkjfobafhncgmne
*/
body { overflow: unset !important; }
.RnEpo { display: none; }

cisoun

#/usr/bin/env bash
#
# rename.sh
#
# Replace any occurency of "<source>" to "<target>" in a given <directory>.
# This apply to (sub)folders/files name and files content.
# Think about it like a refactoring function.
#
# Usage: rename.sh <source> <target> <directory>
#

cisoun

/* Remove Medium.com's modal. */
.ar.as.dx.nn.no.np.nq.nr.ns.m.n.nt.o.p.nu {
    display:none;
}

cisoun

#!/bin/bash
#
# Create a virtual disk on RAM with a given name and size.
# To remove it, just unmount it in Finder.
#
# Usage: ram.sh <name> <size in MB>
#

function usage() {
	echo "$0 <name> <size in MB>"

cisoun

How2Bash

A collection of useful tips in bash.

Streams

Redirections

command >/dev/null # Silent all output.

cisoun

#!/bin/bash

while :
do
	play -n -c1 synth sin %-12 sin %-9 sin %-5 sin %-2 fade h 0.1 0.25 0.1
	play -n -c1 synth sin %-12 sin %-9 sin %-0 sin %-2 fade h 0.1 0.25 0.1
	play -n -c1 synth sin %-12 sin %-9 sin %-5 sin %-2 fade h 0.1 0.25 0.1
	play -n -c1 synth sin %-12 sin %-9 sin %-0 sin %-2 fade h 0.1 0.25 0.1
	play -n -c1 synth sin %-12 sin %-9 sin %-5 sin %-2 fade h 0.1 0.25 0.1
	play -n -c1 synth sin %-12 sin %-9 sin %-0 sin %-2 fade h 0.1 0.25 0.1