http_rrd_profiler is an HTTP testing/monitoring tool written in Python. It uses Python's httplib to send a GET request to a web resource and adds performance timing instrumentation between each step of the request/response. RRDTool is used for data storage and graph generation. RRDtool is an open source, high performance logging and graphing system for time-series data.

results of testing various tags with empty URLs across different browsers.

Just over a month ago, Facebook rolled out a new homepage redesign. Now it looks like the social network isn’t completely satisfied with the results, as it’s now testing yet another homepage redesign.

WRT Vary - Based on what Co-advisor sees as well as some of my own testing, Vary is safe in the very limited fashion that if you do a simple, one-dimensional vary, the wrong thing won't be returned.

Browser testing

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t work we have to manage a ton of Django based sites. Just for our World Company sites, we have over 50 different settings files, and this doesn't take into account the sites that we host for other clients. At this size it becomes basically impossible to test each site in a browser when you push things to production. To solve this problem I have written a very basic server description tool. This allows you to describe sites (settings file, python path, url, etc.) and servers.

The Closure Library is a broad, well-tested, modular, and cross-browser JavaScript library. You can pull just what you need from a large set of reusable UI widgets and controls, and from lower-level utilities for DOM manipulation, server communication, animation, data structures, unit testing, rich-text editing, and more.

The USGS is now testing out Twitter to collect early response information about earthquakes: “the USGS is developing a system that gathers real-time, earthquake-related messages from the social networking site Twitter and applies place, time, and quantity data to provide geo-located earthquake detection within 60 seconds of an event’s origin time.“ Social media can be a valuable tool in helping to assess earthquake hazards through anecdotal information from hundreds and potentially thousands of local users.

Selenium is a suite of tools to automate web app testing across many platforms. It has various pieces (Core, RC, IDE, etc), and I struggled trying to figure out how everything fits together and works. At the end of the day, all I wanted to do was use Selenium from my Python code to drive a browser session.

A good way to see how your Web applications and server will behave under high load is by testing them with a simulated load. We tested several free software tools that do such testing to see which work best for what kinds of sites.