The document discusses optimizing frontend performance. It begins by introducing the author and their experience with PHP, XSLT/XPath, and JavaScript. It then asks how to scale a webpage, listing hardware, backend, and frontend as areas to consider. It notes that while hardware continues to improve due to Moore's law, distributed systems are complex. It recommends focusing on optimizing external data sources and using memory for speed on the backend. The document concludes by discussing myths around micro-optimizations and considering objects, functions, and template systems to improve performance.

1. NRW08
Thomas Weinert
Optimizing Your Frontend Performance

2. About Me
● Application Developer
– PHP
– XSLT/XPath
– (some) Javascript
● papaya CMS
– PHP based Content Management System
– uses XSLT for Templates

3. How to scale you webpage?
● Hardware
● Backend
● Frontend

4. Hardware
● More hardware
● Better hardware
● Moores Law
– Transistors doubling every 18 months
– Transistors != Performance
● Distributed systems are complex
● Think about environment

5. Backend
● External data sources are slow
– SQL
– Files
– Network
● Locking is slower
● Memory is faster
– but less secure