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@kylelemons
kylelemons / piping.go
Last active May 31, 2024 09:07 — forked from dagoof/piping.go
piping exec.Cmd in golang (example sorts all regular files under a directory by their extension)
package main
import (
"bytes"
"exec"
"log"
"os"
)
// Pipeline strings together the given exec.Cmd commands in a similar fashion
@jboner
jboner / latency.txt
Last active November 19, 2024 14:58
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
@jedschneider
jedschneider / gh-pages-tips.md
Created June 7, 2012 17:59
github pages tips for jekyll wiki

Working With Github Pages

The FAQ maintained by Github covers most stumbling blocks, some other tips and tricks supplied here.

Gitignore

Add _site to .gitignore. The generated site should not be uploaded to Github since its gets generated by github.

Working With Code Partials

@Mithrandir0x
Mithrandir0x / gist:3639232
Created September 5, 2012 16:15
Difference between Service, Factory and Provider in AngularJS
// Source: https://groups.google.com/forum/#!topic/angular/hVrkvaHGOfc
// jsFiddle: http://jsfiddle.net/pkozlowski_opensource/PxdSP/14/
// author: Pawel Kozlowski
var myApp = angular.module('myApp', []);
//service style, probably the simplest one
myApp.service('helloWorldFromService', function() {
this.sayHello = function() {
return "Hello, World!"
@voluntas
voluntas / meck.rst
Last active February 17, 2021 12:40
meck コトハジメ

meck コトハジメ

更新:2014-04-14
バージョン:0.1.1
作者:@voluntas
URL:http://voluntas.github.io/

Erlang の mock/stub ライブラリである meck の使い方をまとめました

@bgrins
bgrins / detectDataURL.js
Last active December 18, 2023 18:57
Detect if a string is a data URL. Doesn't try to parse it or determine validity, just a quick check if a string appears to be a data URL. See http://jsfiddle.net/bgrins/aZWTB/ for a demo.
// Detecting data URLs
// data URI - MDN https://developer.mozilla.org/en-US/docs/data_URIs
// The "data" URL scheme: http://tools.ietf.org/html/rfc2397
// Valid URL Characters: http://tools.ietf.org/html/rfc2396#section2
function isDataURL(s) {
return !!s.match(isDataURL.regex);
}
isDataURL.regex = /^\s*data:([a-z]+\/[a-z]+(;[a-z\-]+\=[a-z\-]+)?)?(;base64)?,[a-z0-9\!\$\&\'\,\(\)\*\+\,\;\=\-\.\_\~\:\@\/\?\%\s]*\s*$/i;
@FiloSottile
FiloSottile / 32.asm
Last active November 7, 2024 06:51
NASM Hello World for x86 and x86_64 Intel Mac OS X (get yourself an updated nasm with brew)
; /usr/local/bin/nasm -f macho 32.asm && ld -macosx_version_min 10.7.0 -o 32 32.o && ./32
global start
section .text
start:
push dword msg.len
push dword msg
push dword 1
mov eax, 4
@kachayev
kachayev / concurrency-in-go.md
Last active November 19, 2024 02:40
Channels Are Not Enough or Why Pipelining Is Not That Easy
@derrickturk
derrickturk / readbin.rs
Created January 24, 2015 19:37
Binary I/O in Rust
#![allow(unstable)]
use std::os;
use std::io;
use std::io::stdio;
use std::result;
use std::str::StrExt;
struct Record {
filename: String,