Summary
In this episode, we'll dive into ActiveSupport::Notifications to perform simple metrics. We'll then use this technique to troubleshoot and pinpoint where slow running lines of code are. It can be a great debugging technique when trying to deal with slow requests or functions.rails performance metrics 13:47
Chapters
- Introduction (0:00)
- Creating a basic subscription (0:50)
- Reviewing the logs (1:42)
- LImiting what we're subscribing to (2:34)
- Digesting the subscription (3:50)
- Tracking only slow requests (5:53)
- Custom notifications (7:35)
- Don't abuse notifications (8:53)
- Debugging performance issues (9:29)
- Final Thoughts (12:21)
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