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@isaacs
isaacs / node-and-npm-in-30-seconds.sh
Last active June 18, 2024 18:27
Use one of these techniques to install node and npm without having to sudo. Discussed in more detail at http://joyeur.com/2010/12/10/installing-node-and-npm/ Note: npm >=0.3 is *safer* when using sudo.
echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc
. ~/.bashrc
mkdir ~/local
mkdir ~/node-latest-install
cd ~/node-latest-install
curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1
./configure --prefix=~/local
make install # ok, fine, this step probably takes more than 30 seconds...
curl https://www.npmjs.org/install.sh | sh
@leric
leric / dump.php
Created September 15, 2011 08:50
Database migrate tool using Doctrine2 DBAL
<?php
/**
* Dump database schema to schema config files
*
*/
$env = 'test';
if (empty($_SERVER['argv'][1])) {
echo "Usage: php dump.php (production|test|dev) \n";
exit();
@jboner
jboner / latency.txt
Last active June 25, 2024 12:58
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@hellerbarde
hellerbarde / latency.markdown
Created May 31, 2012 13:16 — forked from jboner/latency.txt
Latency numbers every programmer should know

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

@krakjoe
krakjoe / pthreads.md
Last active August 30, 2023 18:30
pthreads.md

Multi-Threading in PHP with pthreads

A Brief Introduction to Multi-Threading in PHP

  • Foreword
  • Execution
  • Sharing
  • Synchronization
  • Pitfalls
@hgfischer
hgfischer / benchmark+go+nginx.md
Last active April 11, 2024 22:09
Benchmarking Nginx with Go

Benchmarking Nginx with Go

There are a lot of ways to serve a Go HTTP application. The best choices depend on each use case. Currently nginx looks to be the standard web server for every new project even though there are other great web servers as well. However, how much is the overhead of serving a Go application behind an nginx server? Do we need some nginx features (vhosts, load balancing, cache, etc) or can you serve directly from Go? If you need nginx, what is the fastest connection mechanism? This are the kind of questions I'm intended to answer here. The purpose of this benchmark is not to tell that Go is faster or slower than nginx. That would be stupid.

So, these are the different settings we are going to compare:

  • Go HTTP standalone (as the control group)
  • Nginx proxy to Go HTTP
  • Nginx fastcgi to Go TCP FastCGI
  • Nginx fastcgi to Go Unix Socket FastCGI
# Functions/Macros for use when building extensions statically
# These functions also exist in CMake/HPHPIZEFunctions.cmake
# Their signatures should be kept consistent, though their behavior
# will differ slightly.
function(HHVM_LINK_LIBRARIES EXTNAME)
list(REMOVE_AT ARGV 0)
foreach (lib ${ARGV})
list(APPEND HRE_LIBRARIES ${lib})
@parkr
parkr / in-your-console.js
Last active May 20, 2024 09:34
delete your tweets and un-retweet tweets
// go to https://twitter.com/your-username, and enter the following into the developer console:
for(var i = 1; i < 500; i++){ // just do it a bunch
// Un retweet
document.getElementsByClassName("ProfileTweet-actionButtonUndo")[i].click();
document.getElementsByClassName("js-close")[0].click();
// Delete tweets
document.getElementsByClassName("js-actionDelete")[i].childNodes[1].click();
document.getElementsByClassName("delete-action")[0].click()
}
@Tosyn
Tosyn / phalconphp_php7_ubuntu_16_04.sh
Last active October 28, 2021 10:43
PhalconPhp with PHP7 Installation on Ubuntu 16.04
#!/bin/bash
# PhalconPhp with PHP7 installation on ubuntu:16.04
sudo apt-get update
sudo apt-get install -y php7.0-fpm \
php7.0-cli \
php7.0-curl \
php7.0-gd \
@aymericbeaumet
aymericbeaumet / delete-likes-from-twitter.md
Last active June 24, 2024 21:29
[Recipe] Delete all your likes/favorites from Twitter

Ever wanted to delete all your likes/favorites from Twitter but only found broken/expensive tools? You are in the right place.

  1. Go to: https://twitter.com/{username}/likes
  2. Open the console and run the following JavaScript code:
setInterval(() => {
  for (const d of document.querySelectorAll('div[data-testid="unlike"]')) {
    d.click()
 }