antirez

# Build an inverted index for a full-text search engine with Redis.
# Copyright (C) 2009 Salvatore Sanfilippo. Under the BSD License.
# USAGE:
#
# ruby invertedindex.rb add somedir/*.c
# ruby invertedindex.rb add somedir/*.txt
# ruby search your query string

require 'rubygems'
require 'redis'

markembling

#
# Powershell script for adding/removing/showing entries to the hosts file.
#
# Known limitations:
# - does not handle entries with comments afterwards ("<ip>    <host>    # comment")
#

$file = "C:\Windows\System32\drivers\etc\hosts"

function add-host([string]$filename, [string]$ip, [string]$hostname) {

kzk

#include <event.h>
#include <evhttp.h>
#include <pthread.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <iostream>

jamesladd

; -----------------------------------------------------------------------------
; main.asm - FASt Server - Main FASt Server entry point and loader.
; http://www.jamesladdcode.com/
;

; -----------------------------------------------------------------------------
;
.686                 ; create 32 bit code
.model flat, stdcall ; 32 bit memory model
option casemap :none ; case sensitive

krikulis

#include <evhttp.h>

void process_request(struct evhttp_request *req, void *arg){ 
    struct evbuffer *buf = evbuffer_new();
    if (buf == NULL) return;
    evbuffer_add_printf(buf, "Requested: %s\n", evhttp_request_uri(req));
    evhttp_send_reply(req, HTTP_OK, "OK", buf);
}

int main () {

kitek

var data = "do shash'owania";
var crypto = require('crypto');
crypto.createHash('md5').update(data).digest("hex");

henrik

Install ImageMagick for image conversion:

brew install imagemagick

Install tesseract for OCR:

brew install tesseract --all-languages

Or install without --all-languages and install them manually as needed.

rnorth

worker_processes  1;

error_log  logs/error.log;


events {
    worker_connections  1024;
}

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

scttnlsn

Pub/sub with MongoDB and Node.js

Setup:

$ mongo
> use pubsub
> db.createCollection('messages', { capped: true, size: 100000 })
> db.messages.insert({})