RobertAKARobin

Python is not a great programming language.

It's great for beginners. Then it turns into a mess.

• What's good
• What should be good
• What's "meh"
• What's bad
• What's bad about the culture

ifraixedes

DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE Version 2, December 2004
(http://www.wtfpl.net/about/)

 Copyright (C) 2015 Mario Mendes (@hyprstack)
 Copyright (C) 2015 Ivan Fraixedes (https://ivan.fraixed.es)

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.

lologhi

It's still a work in progress...

Intro

As William Durand was recently explaining in his SOS, he "didn't see any other interesting blog post about REST with Symfony recently unfortunately". After spending some long hours to implement an API strongly secured with oAuth, I thought it was time for me to purpose my simple explanation of how to do it.

Ok, you know the bundles

You might have already seen some good explanation of how to easily create a REST API with Symfony2. There are famous really good bundles a.k.a. :

denji

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

marknca

#! /usr/bin/env bash

# Remove OpsWorks security groups from the given region

# Available regions:
# ====================
# ap-northeast-1 => Asia Pacific (Tokyo) Region
# ap-southeast-1 => Asia Pacific (Singapore) Region
# ap-southeast-2 => Asia Pacific (Sydney) Region
# eu-west-1 => EU (Ireland) Region

jpetazzo

# this forces dpkg not to call sync() after package extraction and speeds up install
RUN echo "force-unsafe-io" > /etc/dpkg/dpkg.cfg.d/02apt-speedup
# we don't need and apt cache in a container
RUN echo "Acquire::http {No-Cache=True;};" > /etc/apt/apt.conf.d/no-cache

johnjohndoe

KML to GPX converter

Download GPS data from Google Latitude

Google Latitude location history KML export is very interesting. GPS track log is easy to handle geotagging photos than Google Latitude KML data file. I wrote a perl program to convert from KML to GPX track log.

Google Latitude / KML data download

• Google Latitude

davidjrice

• Install & Setup New Relic
• cd my_rails_project/config/initializers
• wget http://raw.github.com/gist/2933202/5adcf11839c0ef2064a5f0c6e0fe795d9ed2c60a/couchbase_new_relic_instrumentation.rb
• git add and deploy as usual!

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

dstroot

#!/bin/bash
echo "*****************************************"
echo " Based on information from Google"
echo " http://dev.chromium.org/spdy/spdy-best-practices"
echo "*****************************************"
sudo su
yum –y update
echo "*****************************************"
echo " Changing initcwnd and initrwnd"
echo " Step 1: check route settings."