Request Details

Route
/error_prone GET
Timestamp
Sep 22, 2026 8:48 PM
Duration
29.67 ms
Status
204
Response Size
3 KB
Error
No

Performance Breakdown

Database
12.3% (1 query)
View Rendering
71.8%
Application Logic
15.9%
Other Operations
0.0%
Total Operations
8
Slowest Operation
39.0 ms

Request Trace

How to read this

Each row is a layer of your stack. Many short Database bars means N+1 queries — fix with includes(). A wide Action bar with little Database time means slow Ruby code. A wide View bar usually means a partial rendered in a loop.

Action
View
Database
Other
Action
View
Database
0.0ms 46.7ms 93.3ms 140.0ms 186.7ms

Operations

How to use this

Sort by Impact to find your biggest wins. Click any row for details and optimisation suggestions. The same SQL appearing multiple times is an N+1 — fix with includes(). A single operation above 50% impact is your highest priority.

Operation Duration Impact Timeline Actions
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 23 ms 77.5%
home/index 9 ms 30.3%
home/index 34 ms 114.6%
home#errors 30 ms 100.0%
home/index 36 ms 121.3%
layouts/application 10 ms 33.7%
home/index 39 ms 131.4%
users/index 6 ms 20.2%