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View c10k-test-client.c
// HTTP client for testing high connection concurrency
// Authors: Richard Jones and Rasmus Andersson
// Released in the public domain. No restrictions, no support.
#include <sys/types.h>
#include <sys/time.h>
#include <sys/queue.h>
#include <stdlib.h>
#include <err.h>
#include <event.h>
#include <evhttp.h>
View fakecassandra.py
# In-memory Cassandra-ish thingy... useful for unit tests. Maybe useful for other
# stuff too? No support for SuperColumns, but that should be easy enough to add.
import bisect
import copy
from cassandra.ttypes import NotFoundException, Column, ColumnPath, ColumnOrSuperColumn
class SSTable(object):
@mager
mager / index.html
Created Oct 15, 2010
This is an example of SimpleGeo's GeoIP functionality for getting the user's location based on IP address. This example uses Polymaps.
View index.html
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
var simplegeo=(function(b,d){var c=(function(k,g){function e(){return(new Date).getTime()}var m=k.document;var n=e(),i=/=\?(&|$)/,j=/(\?|&)_=.*?(&|$)/,l=/\?/,h=/%20/g,f=Object.prototype.toString,o={isFunction:function(p){return f.call(p)==="[object Function]"},isArray:function(p){return f.call(p)==="[object Array]"},each:function(s,w,r){var q,t=0,u=s.length,p=u===g||o.isFunction(s);if(r){if(p){for(q in s){if(w.apply(s[q],r)===false){break}}}else{for(;t<u;){if(w.apply(s[t++],r)===false){break}}}}else{if(p){for(q in s){if(w.call(s[q],q,s[q])===false){break}}}else{for(var v=s[0];t<u&&w.call(v,t,v)!==false;v=s[++t]){}}}return s},param:function(p){var q=[];if(o.isArray(p)||p.jquery){o.each(p,function(){u(this.name,this.value)})}else{for(var t in p){r(t,p[t])}}return q.join("&").replace(h,"+");function r(s,v){if(o.isArray(v)){o.each(v,function(x,w){if(/\[\]$/.test(s)){u(s,w)}else{r(s+"["+(typeof w==="object"||o.isArray(w)?x:"")+"]",w)}})}else{if(v!=n
View debug.js
require.registerExtension('.js', function(js){
return js.replace(/^ *\/\/debug: */gm, '');
});
@protocool
protocool / caveatPatchor.js
Created Feb 14, 2011
Sample caveatPatchor.js file for use in Propane 1.1.2 and above
View caveatPatchor.js
/*
As of version 1.1.2, Propane will load and execute the contents of
~Library/Application Support/Propane/unsupported/caveatPatchor.js
immediately following the execution of its own enhancer.js file.
You can use this mechanism to add your own customizations to Campfire
in Propane.
Below you'll find two customization examples.
View failure-detector.js
// Based on http://bit.ly/215MBZ
function FailureDetector(ws) {
// ws stands for window size.
// How many heartbeat intervals we keep track of.
this.ws = ws || 100;
this.window = [];
this.last = null;
}
exports.FailureDetector = FailureDetector;
View frame-protocol.js
/*
A simple new-line delimited JSON protocol with upgrades.
Receiving Usage:
protocol = require('./frame-protocol');
// parsing data
parser = protocol.Parser();
View find_my_friends.js
var options, req, request;
request = require('request');
options = {
uri: 'https://p04-fmfmobile.icloud.com/fmipservice/friends/{account_id}/{unique_device_id}/minCallback/selFriend/refreshClient',
method: 'POST',
headers: {
'X-Apple-AuthScheme': 'Forever',
'Content-type': 'application/json'
@eonnen
eonnen / gist:2647948
Created May 9, 2012
Sample ZK Configuration
View gist:2647948
# The number of milliseconds of each tick
tickTime=300
# The number of ticks that the initial
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
dataDir=/home/erik/var/data/zookeeper
@hellerbarde
hellerbarde / latency.markdown
Created May 31, 2012 — forked from jboner/latency.txt
Latency numbers every programmer should know
View latency.markdown

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs
Read 1 MB sequentially from memory ..... 250,000 ns  = 250 µs
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