loderunner

Profiling an application in Mac OS X

Finding which process to profile

If your system is running slowly, perhaps a process is using too much CPU time and won't let other processes run smoothly. To find out which processes are taking up a lot of CPU time, you can use Apple's Activity Monitor.

The CPU pane shows how processes are affecting CPU (processor) activity:

pnommensen

Full blog post can be found here: http://pnommensen.com/2014/09/07/high-performance-ghost-configuration-with-nginx/

Ghost is an open source platform for blogging founded by John O'Nolan and Hannah Wolfe. It's a node.js application and therefore works great in conjunction with nginx. This guide will will help you create a high performance nginx virtual host configuration for Ghost.

"Don't use #nodejs for static content" - @trevnorris. If #nginx isn't sitting in front of your node server, you're probably doing it wrong.

— Bryan Hughes (@nebrius) August 30, 2014

<script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>

The node.js application runs on a port on your server

crosbymichael

#!/bin/bash

set -e 

apt-get install -y curl python-setuptools python-pip python-dev python-protobuf

# zookeeper
apt-get install -y zookeeperd
echo 1 | dd of=/var/lib/zookeeper/myid

timyates

// Bad example of @ForceOverride...  enjoy!  (?)

import groovy.transform.*

class BasicIntQueue extends LinkedList<Integer> {
    Integer get() {
        this.poll()
    }
    
    void put( Integer x ) {

jdewit

sudo apt-get remove --purge vim vim-runtime vim-gnome vim-tiny vim-common vim-gui-common

sudo apt-get build-dep vim-gnome
 
sudo apt-get install liblua5.1-dev luajit libluajit-5.1 python-dev ruby-dev libperl-dev libncurses5-dev libgnome2-dev libgnomeui-dev libgtk2.0-dev libatk1.0-dev libbonoboui2-dev libcairo2-dev libx11-dev libxpm-dev libxt-dev

sudo rm -rf /usr/local/share/vim

sudo rm /usr/bin/vim
 

mycodeschool

/* Merge sort in C */
#include<stdio.h>
#include<stdlib.h>

// Function to Merge Arrays L and R into A. 
// lefCount = number of elements in L
// rightCount = number of elements in R. 
void Merge(int *A,int *L,int leftCount,int *R,int rightCount) {
	int i,j,k;

anderssonfilip

// Akka Actor system
import akka.actor.ActorSystem

// HTTP related imports
import spray.http.{ HttpRequest, HttpResponse }
import spray.client.pipelining.{ Get, sendReceive }

// Futures related imports
import scala.concurrent.Future
import scala.util.{ Success, Failure }

guenter

Software projects built on Mesos

PaaS and Long Running Services

• Aurora is a service scheduler that runs on top of Mesos, enabling you to run long-running services that take advantage of Mesos' scalability, fault-tolerance, and resource isolation.
• Marathon is a private PaaS built on Mesos. It automatically handles hardware or software failures and ensures that an app is "always on".
• SSSP is a simple web application that provides a white-label "Megaupload" for storing and sharing files in S3.

Big Data Processing

tychobrailleur

(defun project-euler-1 (n)
  "Implementation for Project Euler 1"
  (let ((sum 0))
    (dotimes (i n)
      (if (or (= 0 (% i 3)) (= 0 (% i 5)))
          (setq sum (+ sum i))))
    sum))
(project-euler-1 1000)

(defvar memoize (make-hash-table :test 'equal))

shriphani

(defproject sutime-clojure "0.1.0-SNAPSHOT"
  :description "Wrapper around the time functionality in Stanford NLP Suite"
  :url "https://github.com/shriphani/sutime-clojure"
  :license {:name "MIT License"
            :url "http://opensource.org/licenses/MIT"}
  :dependencies [[org.clojure/clojure "1.4.0"]
                 [edu.stanford.nlp/stanford-corenlp "1.3.4"]
                 [edu.stanford.nlp/stanford-corenlp "1.3.4" :classifier "models"]
                 [clj-time "0.5.0"]]
  :jvm-opts ["-Xmx2000M"]