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@jed
jed / LICENSE.txt
Created May 20, 2011 13:27 — forked from 140bytes/LICENSE.txt
generate random UUIDs
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2011 Jed Schmidt <http://jed.is>
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
@jboner
jboner / latency.txt
Last active June 12, 2024 14:31
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
@zhouming
zhouming / MY_Session.php
Created September 8, 2012 05:51
Use redis in Codeigniter Session.
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class MY_Session extends CI_Session{
private $sess_use_redis = TRUE;
private $redis = '';
public function __construct($params = array()) {
//parent::__construct();
$this->CI =& get_instance();
// To disable socket.io, disable the sockets hook (you'll have to disable the pubsub hook as well)
// This is a replacement for the default app.js file:
require('sails').lift({
hooks: {
sockets: false,
pubsub: false
}
@jdx
jdx / boot.js
Last active March 16, 2023 18:08
zero-downtime node.js app runner
// This script will boot app.js with the number of workers
// specified in WORKER_COUNT.
//
// The master will respond to SIGHUP, which will trigger
// restarting all the workers and reloading the app.
var cluster = require('cluster');
var workerCount = process.env.WORKER_COUNT || 2;
// Defines what each worker needs to run
@vitorbritto
vitorbritto / rm_mysql.md
Last active June 13, 2024 09:20
Remove MySQL completely from Mac OSX

Remove MySQL completely

  1. Open the Terminal

  2. Use mysqldump to backup your databases

  3. Check for MySQL processes with: ps -ax | grep mysql

  4. Stop and kill any MySQL processes

  5. Analyze MySQL on HomeBrew:

    brew remove mysql
    
@sphvn
sphvn / traverse.js
Last active October 26, 2023 21:49
Recursively traverse object javascript, recurse json js, loop and get key/value pair for JSON
var traverse = function(o, fn) {
for (var i in o) {
fn.apply(this,[i,o[i]]);
if (o[i] !== null && typeof(o[i])=="object") {
traverse(o[i], fn);
}
}
}
// usage
@nathwill
nathwill / ha-redis-keepalived.conf
Created April 18, 2016 23:42
keepalived configuration for tracking redis master
vrrp_script chk_redis_master {
script "redis-cli info replication | grep -q 'role:master'"
interval 2
weight 2
rise 2
fall 2
}
vrrp_instance redis_vip {
interface eth0
@meanevo
meanevo / compile-haproxy.sh
Last active October 25, 2022 07:42 — forked from ryzy/a.sh
Compile HAProxy from source on CentOS 7
# Make sure you have these installed
yum install -y make gcc perl pcre-devel zlib-devel
# Download/Extract source
wget -O /tmp/haproxy.tgz http://www.haproxy.org/download/1.7/src/haproxy-1.7.2.tar.gz
tar -zxvf /tmp/haproxy.tgz -C /tmp
cd /tmp/haproxy-*
# Compile HAProxy
# https://github.com/haproxy/haproxy/blob/master/README
make \
TARGET=linux2628 USE_LINUX_TPROXY=1 USE_ZLIB=1 USE_REGPARM=1 USE_PCRE=1 USE_PCRE_JIT=1 \
@dmpanch
dmpanch / howto_create_online_radio_macos_sierra.txt
Last active August 13, 2022 23:24
How to create internet radio on MacOS Sierra 10.12
All actions are performed in Terminal.app.
1. Install Homebrew http://brew.sh/
2. Install Jack (route audio tool) http://jackaudio.org/. Current stable version from official website doesn't work with
MacOS Sierra (I use 10.12.3) so you need to download beta version from there https://yadi.sk/d/JwT10b7v3Dm5yy.
After installing reboot your computer.
3. Install Darkice (audio streamer) via brew.