Skip to content

Instantly share code, notes, and snippets.

@ericlagergren
ericlagergren / index.gohtml
Last active December 22, 2023 17:51
Hot-reloading / hot-swapping live template files in Go
My name is {{.Name}} and I'm {{.Age}} years old!!
@jboner
jboner / latency.txt
Last active April 30, 2024 07:56
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
@sintaxi
sintaxi / application.js
Created April 21, 2011 21:00
simple chat client using redis pub/sub
var q= function(s){ return document.getElementById(s) }
function send(){
var input = q('text');
socket.send(input.value);
input.value = '';
}
var socket = new io.Socket(null, {
port: 8001,
@isaacs
isaacs / node-and-npm-in-30-seconds.sh
Last active March 8, 2024 02:11
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