Navigation Menu

Skip to content

Instantly share code, notes, and snippets.

@passsy
passsy / material text sizes.md
Last active May 25, 2023 04:24
Material font sizes
@TomTasche
TomTasche / debug_log.cpp
Last active December 31, 2015 22:29
console output in C++
std::cout << "debug message: " << array.size() << std::endl;
@dominicbartl
dominicbartl / ps1.sh
Last active December 29, 2015 06:59
A colorful prompt which displays the time of your last command, the working directory, the git branch and status characters
function timer_start {
timer=${timer:-$(date +%s%N)/1000000}
}
function timer_stop {
millis=$(($(date +%s%N)/1000000 - $timer))
if [[ $millis -ge 1000 ]] ; then
timer_mout="$(($millis/1000))"s ;
else
timer_mout="$millis"ms ;
@jboner
jboner / latency.txt
Last active April 22, 2024 15:20
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
@ryanflorence
ryanflorence / static_server.js
Last active March 13, 2024 08:05
Node.JS static file web server. Put it in your path to fire up servers in any directory, takes an optional port argument.
var http = require("http"),
url = require("url"),
path = require("path"),
fs = require("fs")
port = process.argv[2] || 8888;
http.createServer(function(request, response) {
var uri = url.parse(request.url).pathname
, filename = path.join(process.cwd(), uri);