Blackfire.io: Revealing Performance Secrets with Profiling

Description

In this course, you will learn:

• Blackfire setup, what it all means & profiling
• Understanding the call graph: wall time vs IO time vs CPU time
• Callers vs callees & optimizing calls
• Deep profiled details: OPcache memory, RealPath cache, etc
• Exclusive versus Inclusive call time
• Profiling AJAX requests... and "all requests"
• Profiling a command-line script
• Investigating SQL query problems & network calls
• Blackfire Environments & automated builds
• Custom performance scenarios
• Writing performance assertions
• Automated performance checks
• The Blackfire Player
• The Blackfire SDK: generate custom profiles from your code
• Using Blackfire in PHPUnit for performance assertions

Syllabus:

• Performance, Profilers and APMs
• Blackfire Install: Agent, Probe, Chrome Extension
• Installing the Agent, Probe & Chrome Extension
• Wall Time, Exclusive Time & Other Wonders
• Finding Issues via the Call Graph
• Comparisons: Validate Performance Changes, Find Side Effects
• Recommendations
• Property Caching
• Using a Caching Layer & Proving its Worth
• The N+1 Problem & EXTRA_LAZY
• Fixing N+1 With a Join?
• Profile All Requests (Including Ajax)
• The Blackfire CLI Tool for AJAX Requests
• Profiling Command Line scripts
• Timeline: Go Behind-the-Scenes with your Code
• Timeline: Finding a Hidden Surprise
• Spotting Heavy Object Instantiation
• Service Subscribers
• Manually Profile (Instrument) Part of your Code
• SDK: Automatically Create a Profile
• Creating an Automatic Probe Early in your Code
• Performance Tests
• All about Metrics
• Assertions / Profile "Tests"
• Blackfire Player
• Expectations/Tests with Blackfire Player
• Deploying to SymfonyCloud
• Database Tricks on SymfonyCloud
• Blackfire Environments
• Production Profile: Cache Stats & More Recommendations
• Automatic Performance Checks: Builds
• Builds with Custom Scenarios
• Per-Page Time Metrics & Custom Metrics
• Testing a Build Compared to the Last Build
• Staging Servers on SymfonyCloud
• Staging Environment Builds
• Blackfire Environment Variables