Use The Index, Luke! : A tutorial covering SQL indexing and SQL tuning for developers: avoiding unnecessary details about database internals.
SQL indexing is the most effect...
High Performance Browser Networking : Performance is a feature. This book provides a hands-on overview of what every web developer needs to know about the various types of networks (WiFi, ...
New Relic : New Relic’s SaaS-based Application Performance Monitoring helps you build, deploy, and maintain great web software.
Also, server monitoring, and more.
Cheatsheet list of techniques and patterns for maximizing software performance and scalability
