Falco · Open Source WebPageTest runner

wagoodman/dive: A tool for exploring each layer in a docker image

NoiseByNorthwest/php-spx: A simple & straight-to-the-point PHP profiling extension

ngryman/speedracer: Collect performance metrics for your library/application.

facebook/prepack: Prepack is a partial evaluator for JavaScript. Prepack rewrites a JavaScript bundle, resulting in JavaScript code that executes more efficiently.

Open source load testing tool for more flexible performance testing

Locust - A modern load testing framework

mariadb-corporation/MaxScale at release-1.0GA

gmetais/grunt-devperf

tkadlec/grunt-perfbudget

polyfractal/athletic

sobstel/metaphore

dieulot/instantclick

InstantClick – JS lib to make your website instant

DareBoost - Analyse et conseil en performance et qualité web (beta)

Sitespeed.io - Analyze your website speed and performance

sebastianbergmann/hhvm-wrapper

PHP: Introduction - Manual

mobitest-agent - Akamai Mobitest: Mobile Web Performance Measurement Agents - Google Project Hosting

Aesop – A Hip Hop PHP UI « NIX/WIN/WEB

You Must Have A Killer In Your System – MySQL Diary

phpmemcacheadmin - Project Hosting on Google Code

this, is boomerang

What does Librato Silverline do? / Getting Started / FAQs - librato Support

niceload - slow down a program when the load average is above a certain limit

Apdex.org

OpenTSDB - A Distributed, Scalable Monitoring System

newsapps's beeswithmachineguns at master - GitHub

PECL :: Package :: memtrack

mihasya's ishmael at master - GitHub