Request Details

Route
/error_prone GET
Timestamp
Sep 21, 2026 11:19 PM
Duration
73.26 ms
Status
204
Response Size
4.1 KB
Error
No

Performance Breakdown

Database
15.4% (2 queries)
View Rendering
5.4%
Application Logic
79.2%
Other Operations
0.0%
Total Operations
8
Slowest Operation
73.26 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 92.5ms 185.0ms 277.5ms 370.0ms

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 73 ms 100.0%
home#errors 73 ms 100.0%
home/index 11 ms 15.0%
home#errors 73 ms 100.0%
home/index 9 ms 12.3%
home#errors 73 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... 33 ms 45.0%
SELECT COUNT(*) FROM comments WHERE post_id = ? 24 ms 32.8%