Day Camp 4 Developers - Performant PHP
10 Apr 2015 at Online

Fantastic overview of Varnish!

Excellent talk. Very dense. I will have to revisit the talk one or two more times to understand it fully.

Excellent talk! Very detailed examples.

Very well done. My only criticism is that I wish you had spoken a little slower.

Really amazing details about how MySQL works to attempt to optimize queries and how they can be analyzed and tweaked. It was helpful to have a metric (cost units?) to measure what a specific query will "cost". That helped provide a nice way to determine by how much a query is improved, even though a time measurement is a little more intuitive. The example data sets were awesome to look at and see how he worked with them.

Excellent talk, great information on optimizing queries.

Very index-heavy talk without getting too technical into how indices work. Might have liked to see more background into what explain is telling us, with temp tables or file sorts.

I really enjoyed the talk, especially showing the graph examples and what they spikes might mean. Well presented, and useful.

I could see a companion talk about how to actually use the profiling information to track down and fix the performance problems uncovered by XHProf.

Good information for optimizing queries with MySQL. I felt the talk was too heavily focused on indexing, and I was hoping to hear more about temp table creation and file sort results from EXPLAIN. Overall a great overview on how to tackle query optimization.

Great talk!

I understand Morgan is from Oracle, but I would like to have some hints it this is MySQL only or MariaDB also...

Thank you!