Blackfire.io: Revealing Performance Secrets with Profiling
Learn everything you need to know about profiling, on-demand or automated, for free!
By Christophe Dujarric, on Mar 03, 2020 SymfonyCasts
SymfonyCasts is “Simply the Best PHP & Symfony Tutorials” as they mention on their website. It’s indeed an amazing way for anyone to learn PHP and Symfony.
Lessons are split in short chapters. Each chapter is a step by step video tutorial, which guides you as a student through exercises so that you can reproduce what the teachers do. And while you can listen to them, a full transcript of the speech is available below the video. Even better: clicking on a specific bit of text will lead you to the exact moment in the video.
Learning how to Profile, Test, Fix, Repeat
Where most lessons require a paid subscription, Blackfire is thrilled to sponsor the Profiling course, which is available fully for free!
Let Ryan Weaver lead you through the basics of PHP code profiling on-demand, onto more advanced usages, such as writing performance tests and automating profiling.
Table of Contents
01. Performance, Profilers and APMs 5:35
02. Blackfire Install: Agent, Probe, Chrome Extension 3:14
03. Installing the Agent, Probe & Chrome Extension 6:26
04. Wall Time, Exclusive Time & Other Wonders 7:47
05. Finding Issues via the Call Graph 6:50
06. Comparisons: Validate Performance Changes, Find Side Effects 3:56
09. Using a Caching Layer & Proving its Worth 4:24
10. The N+1 Problem & EXTRA_LAZY 5:59
11. Fixing N+1 With a Join? 4:38
12. Profile All Requests (Including Ajax) 6:03
13. The Blackfire CLI Tool for AJAX Requests 4:46
14. Profiling Command Line scripts 6:33
15. Timeline: Go Behind-the-Scenes with your Code 7:15
16. Timeline: Finding a Hidden Surprise 4:38
17. Spotting Heavy Object Instantiation 6:06
19. Manually Profile (Instrument) Part of your Code 9:04
20. SDK: Automatically Create a Profile 4:43
21. Creating an Automatic Probe Early in your Code 7:57
24. Assertions / Profile “Tests” 4:07
26. Expectations/Tests with Blackfire Player 6:10
27. Deploying to SymfonyCloud 5:01
28. Database Tricks on SymfonyCloud 8:00
29. Blackfire Environments 7:17
30. Production Profile: Cache Stats & More Recommendations 4:18
31. Automatic Performance Checks: Builds 7:15
32. Builds with Custom Scenarios 5:32
33. Per-Page Time Metrics & Custom Metrics 4:29
34. Testing a Build Compared to the Last Build 7:46
35. Staging Servers on SymfonyCloud 4:46
