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NGINX [Engine-X] is an HTTP(S) server, HTTP(S) reverse proxy and IMAP/POP3 proxy server written by Igor Sysoev. It has been running on many heavily loaded sites, including Facebook, Zappos, Groupon, LivingSocial, Hulu, TechCrunch, Dropbox, Tumblr and WordPress.
YSlow for Firebug analyzes web pages and tells you why they're slow based on Yahoo's rules for high performance web sites.
Apache JMeter is a 100% pure Java desktop application designed to load test functional behavior and measure performance. Apache JMeter may be used to test performance both on static and dynamic resources (files, Servlets, Perl scripts, Java Objects, Data Bases and Queries, FTP Servers and more). It ... [More]
The Grinder is a load testing framework that makes it easy to run a distributed test using many load injector machines. Test scripts are written in Jython, and can call out to arbitrary Java code, providing support for testing a large range of network protocols. The Grinder comes with a mature ... [More]
Thin is a Ruby web server that glues together 3 of the best Ruby libraries in web history: * the Mongrel parser, the root of Mongrel speed and security * Event Machine, a network I/O library with extremely high scalability, performance and stability * Rack, a minimal interface between webservers and Ruby frameworks
HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for web applications under very high loads while needing persistence or Layer7 processing.
Tsung is an open-source multi-protocol distributed load testing tool. It is protocol-independent and can currently be used to stress test HTTP, SOAP PostgreSQL, and Jabber servers.
Opera Dragonfly is a fully featured development and debugging tool integrated into the Opera browser. Develop for desktop, mobile, tablet, or TV? Opera Dragonfly has it covered. Remote debugging allows you to connect to the Opera browser on your device and to start debugging from your PC or Mac. All ... [More]
ab is a tool for benchmarking your Apache Hypertext Transfer Protocol (HTTP) server. It is designed to give you an impression of how your current Apache installation performs. This especially shows you how many requests per second your Apache installation is capable of serving.
Wt (pronounced 'witty') is a C++ library and application server for developing and deploying web applications. It is not a framework which tends to enforce a way of programming, but is a widget library. The API is widget-centric, and inspired by existing C++ Graphical User Interface ... [More]