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@jboner
jboner / latency.txt
Last active July 4, 2024 04:27
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
@eweitnauer
eweitnauer / README.md
Last active September 23, 2019 16:05
mtouch Tap

Demonstration of the basic mtouch_events event types.

mtouch_events allows treating mouse events and touch events the same way. It supports the events "touch", "release", "tap", "dbltap", "hold", "drag" and "mdrag". The "mdrag" event is dispatched per mousemove/touchmove DOM event and can contain multiple changed touches at once, while all the other events are dispatched per touch.

@soarez
soarez / ca.md
Last active June 19, 2024 19:32
How to setup your own CA with OpenSSL

How to setup your own CA with OpenSSL

For educational reasons I've decided to create my own CA. Here is what I learned.

First things first

Lets get some context first.

@jaydenseric
jaydenseric / ffmpeg-web-video-guide.md
Last active July 3, 2024 19:58
A quick guide to using FFmpeg to create cross-device web videos.

Video conversion with FFmpeg

Install

On mac:

  1. Download the latest release.
  2. Extract the binary and place it in /usr/local/bin.

Command basics

@d-schmidt
d-schmidt / redirectExample.go
Last active March 12, 2024 08:04
How to redirect HTTP to HTTPS with a golang webserver.
package main
import (
"net/http"
"log"
)
func redirect(w http.ResponseWriter, req *http.Request) {
// remove/add not default ports from req.Host
target := "https://" + req.Host + req.URL.Path
if len(req.URL.RawQuery) > 0 {
@mjackson
mjackson / app.js
Created December 29, 2015 05:07
Using webpack with pixi.js
var PIXI = require('pixi.js')
console.log(PIXI)
@qinwf
qinwf / README.md
Created February 26, 2016 08:10
Code Reuse in Rust
@wojons
wojons / openresty-luarocks.sh
Last active October 31, 2017 23:34 — forked from yagop/openresty-luarocks.sh
OpenResty + LuaRocks + Nchan
apt-get install -y libreadline-dev libncurses5-dev libpcre3-dev \
libssl-dev perl make build-essential
wget https://github.com/openresty/stream-lua-nginx-module/archive/v0.0.1.tar.gz \
-O /tmp/stream-lua-nginx-module-0.0.1.tar.gz
mkdir /tmp/stream-lua-nginx-module-0.0.1
tar xzvf /tmp/stream-lua-nginx-module-0.0.1.tar.gz -C /tmp/stream-lua-nginx-module-0.0.1
@nealrs
nealrs / page.html
Created October 28, 2016 18:23
twitter player card sample
<!DOCTYPE html>
<html>
<head>
<meta content='text/html; charset=UTF-8' http-equiv='Content-Type' />
<meta name="twitter:card" content="player" />
<meta name="twitter:site" content="@wakeyio" />
<meta name="twitter:title" content="Hemopure ~ Wakey Wakey #26" />
<meta name="twitter:description" content="Hemopure is an artificial blood (HBOC) that’s saving lives in South Africa. It’s shelf stable and 100% compatible with all blood types." />
<meta name="twitter:image" content="https://wakey.io/public/img/thumbs/26.png" />
<meta name="twitter:player" content="https://wakey.io/embed/26" />
@tayvano
tayvano / gist:6e2d456a9897f55025e25035478a3a50
Created February 19, 2017 05:29
complete list of ffmpeg flags / commands
Originall From: Posted 2015-05-29 http://ubwg.net/b/full-list-of-ffmpeg-flags-and-options
This is the complete list that’s outputted by ffmpeg when running ffmpeg -h full.
usage: ffmpeg [options] [[infile options] -i infile]… {[outfile options] outfile}…
Getting help:
-h — print basic options
-h long — print more options
-h full — print all options (including all format and codec specific options, very long)