bergie

config.json
reading-image.png

carlzulauf

-- Haversine Formula based geodistance in miles (constant is diameter of Earth in miles)
-- Based on a similar PostgreSQL function found here: https://gist.github.com/831833
-- Updated to use distance formulas found here: http://www.codecodex.com/wiki/Calculate_distance_between_two_points_on_a_globe
CREATE OR REPLACE FUNCTION public.geodistance(alat double precision, alng double precision, blat double precision, blng double precision)
  RETURNS double precision AS
$BODY$
SELECT asin(
  sqrt(
    sin(radians($3-$1)/2)^2 +
    sin(radians($4-$2)/2)^2 *

austinmarton

/*
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 */

#include <arpa/inet.h>
#include <linux/if_packet.h>
#include <stdio.h>

derekcollison

I have some early benchmark results for our work on a high performance NATS server in Go.

Quick Summary:
We can process ~2M msgs/sec through the system, and the ingress and egress are fairly well balanced.

The basics of the architecture are intelligent buffering and IO calls, fast hashing algorithms and subject distributor/routing, and a zero-allocation hand-written protocol parser.

In addition, I used quite a bit of inlining to avoid function overhead, no use of defer, and little to no object allocation within the fast path. I will share more details and the code at a future date.

jamwt

#include <czmq.h>

#define NUM_MESSAGES (50000000)

void no_op(void *unused1, void *unused2) {}

void run_send() {
    zctx_t *ctx = zctx_new();
    void *outsock = zsocket_new(ctx, ZMQ_PUSH);
    zsocket_connect(outsock, "tcp://localhost:5005");

murtaugh

<figure class="quote">
	<blockquote>It is the unofficial force—the Baker Street irregulars.</blockquote>
</figure>

dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

jakeonrails

data:text/html, <style type="text/css">#e{position:absolute;top:0;right:0;bottom:0;left:0;}</style><div id="e"></div><script src="http://d1n0x3qji82z53.cloudfront.net/src-min-noconflict/ace.js" type="text/javascript" charset="utf-8"></script><script>var e=ace.edit("e");e.setTheme("ace/theme/monokai");e.getSession().setMode("ace/mode/ruby");</script>

mharsch

HLS streaming from node

Provided that you already have a file or stream segmenter generating your .m3u8 playlist and .ts segment files (such as the ffmpeg 'hls' muxer), this little node server will serve up those files to an HLS compatible client (e.g. Safari). If you're using node for your streaming app already, this obviates the need to serve the HLS stream from a separate web server.

loosely based on https://gist.github.com/bnerd/2011232

// loosely based on https://gist.github.com/bnerd/2011232
// requires node.js >= v0.10.0
// assumes that HLS segmenter filename base is 'out'
// and that the HLS playlist and .ts files are in the current directory

mashpie

// require modules
var express = require('express'),
    i18n = require('../../i18n'),
    url = require('url'),
    cons = require('consolidate'),
    app = module.exports = express();

// minimal config
i18n.configure({
  locales: ['en', 'de'],