September 16, 2019 — “In this presentation, we will test “”new”” web technologies to see what are the real world impact on a site.

we will be evaluating performance difference between PHP 5.6, 7.0, and 7.1.

We will also cover performance of classic http, http/2 and QUIC Protocol.”

March 28, 2018 — XDebug is a tool for developers to gain insight into how PHP is executed. Using it for profiling is a very effective, fast and precise method to find bottlenecks in your WordPress site. In this talk I explain how to use it with Webgrind, how to find potential optimization targets, show examples of real cases when XDebug helped fix a performance problem and also explain what XDebug is not suitable for and what can be used instead. If you are not a developer, you’ll learn what XDebug is capable of and when to ask a developer to use it.

Presentation Slides »

February 3, 2018 — XDebug is a tool for developers to gain insight into how PHP is executed. Using it for profiling is a very effective, fast and precise method to find bottlenecks in your WordPress site. In this talk I explain how to use it with Webgrind, how to find potential optimization targets, show examples of real cases when XDebug helped fix a performance problem and also explain what XDebug is not suitable for and what can be used instead. If you are not a developer, you’ll learn what XDebug is capable of and when to ask a developer to use it.

April 6, 2016 — Questo talk è rivolto sia a chi ha appena iniziato a sviluppare con WordPress, sia agli sviluppatori più esperti che lo conoscono già da parecchio tempo, ed è un’introduzione ad alcuni argomenti come il caching e l’esecuzione differita di codice PHP, che sono utili per migliorare notevolmente le performance del tuo sito. Alcuni degli argomenti trattati sono il corretto utilizzo della cache e dei plugin di caching. Un’introduzione al WordPress Jobs System, e come eseguire codice differito senza dover quindi rallentare il rendering della pagina.

Presentation Slides »

August 12, 2015 — The tools for PHP performance profiling (from basic to advanced) and how to build actionable and beneficial workflows out of them.

Presentation Slides »