jboner

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

bzerangue

#!/bin/sh
#
#      Jonathan Perkin <jonathan@perkin.org.uk> wrote this file.
#
# You can freely distribute/modify it (and are encouraged to do so),
# and you are welcome to buy me a beer if we ever meet and you think
# this stuff is worth it.  Improvements and cleanups always welcome.
#
# IPTables firewall script.  There are many.  This is mine.
#

jasonruyle

# Run in a shell for each service
port="6379" # REDIS Port: 6379
#port="27017" # MONGO Port: 27017
server="servername.com"
iptables -A INPUT -s $servername.com -p tcp -m tcp --dport $port -j ACCEPT
iptables -A INPUT -s localhost -p tcp -m tcp --dport $port -j ACCEPT
iptables -A INPUT -p tcp -m tcp --dport $port -j DROP

# Control your Rules with iptables -L

sandcastle

#!/bin/sh -x

# ================================== 
# iptables default configuration script
#
# - this locks down our servers port access
# ==================================

# install fail2ban
sudo apt-get update

ricardo-rossi

#!/bin/bash

### USAGE
###
### ./ElasticSearch.sh 1.7 will install Elasticsearch 1.7
### ./ElasticSearch.sh will fail because no version was specified (exit code 1)
###
### CLI options Contributed by @janpieper
### Check http://www.elasticsearch.org/download/ for latest version of ElasticSearch

kevinelliott

Mac OS X 10.10 Yosemite

Custom recipe to get OS X 10.10 Yosemite running from scratch, setup applications and developer environment. I use this gist to keep track of the important software and steps required to have a functioning system after a semi-annual fresh install. On average, I reinstall each computer from scratch every 6 months, and I do not perform upgrades between distros.

This keeps the system performing at top speeds, clean of trojans, spyware, and ensures that I maintain good organizational practices for my content and backups. I highly recommend this.

You are encouraged to fork this and modify it to your heart's content to match your own needs.

Install Software

max-mykhailenko

# - Start to Install xCode (download 4 Gb)
# - Setup languages
#   - max key repeat speed
#   - Short delay before repeat
#   - enable Show symbols in menu bar
#   - disable correct spelling
# - Shortcuts
# - Other items in settings
# - Run xCode
# - Setup time machine

anubhavsinha

sudo apt-get update

# install erlang
sudo apt-get install erlang -y
sudo apt-get install erlang-nox -y

# get deb package
echo deb http://www.rabbitmq.com/debian/ testing main | sudo tee /etc/apt/sources.list

# add key

oleksandr-diudiun

The regex patterns in this gist are intended only to match web URLs -- http,
https, and naked domains like "example.com". For a pattern that attempts to
match all URLs, regardless of protocol, see: https://gist.github.com/gruber/249502


# Single-line version:

(?i)\b((?:https?:(?:/{1,3}|[a-z0-9%])|[a-z0-9.\-]+[.](?:com|net|org|edu|gov|mil|aero|asia|biz|cat|coop|info|int|jobs|mobi|museum|name|post|pro|tel|travel|xxx|ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|au|aw|ax|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cs|cu|cv|cx|cy|cz|dd|de|dj|dk|dm|do|dz|ec|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|me|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|rs|ru|rw|sa|sb|sc|sd|se|sg|sh|si|s

edolganov

//replace http://agar.io/main_out.js by this file 
//with Fiddler Web Debugger (AutoResponder tab)
//bots can be created in different rooms - so try restart the page if need


var totalBotCount = 0;

function game(h, r, bot, botUrl, botName) {