PHP Preloading performance impact explained, and demonstrated.
Learn how to filter the call-graph functions list to find a SQL query.
A reminder of the different cache information Blackfire provides, with a few recent improvements.
Custom metrics are one of the most powerful features of Blackfire, giving you the ability to fine-tune how your profiles are rendered.
You can now use Blackfire on Heroku with all languages supported by Blackfire, thanks to the new official buildpack.
A 2 lines of code Pull Request can make a huge difference for the entire WordPress community, as soon as you found the bottleneck!
Going further with metrics, thanks to the Metrics Explorer. It is now easier to write Blackfire tests.
Metrics are an important part of Blackfire, contributing to a wider awesome feature: Tests