Request Details

Route
/error_prone GET
Timestamp
Sep 10, 2026 6:54 PM
Duration
353.57 ms
Status
200
Response Size
6.4 KB
Error
No

Performance Breakdown

Database
2.2% (2 queries)
View Rendering
1.0%
Application Logic
96.8%
Other Operations
0.0%
Total Operations
8
Slowest Operation
353.57 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 456.5ms 912.9ms 1369.4ms 1825.8ms

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
home#errors 354 ms 100.0%
home#errors 354 ms 100.0%
SELECT name FROM users 25 ms 7.1%
home#errors 354 ms 100.0%
SELECT users.* FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id WHERE users.active = ? AND posts.published = ? AND comments.approved = ? OR users.created_at > ? AND posts.created_at > ? AND commen... 15 ms 4.2%
layouts/application 18 ms 5.1%
home#errors 354 ms 100.0%
home#errors 354 ms 100.0%