Request Details

Route
/error_prone GET
Timestamp
Sep 12, 2026 1:14 AM
Duration
75.87 ms
Status
204
Response Size
941 Bytes
Error
No

Performance Breakdown

Database
10.9% (4 queries)
View Rendering
15.5%
Application Logic
73.5%
Other Operations
0.0%
Total Operations
17
Slowest Operation
75.87 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 180.5ms 361.0ms 541.5ms 722.1ms

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
layouts/application 16 ms 21.1%
users/index 33 ms 43.5%
SELECT name FROM users 21 ms 27.7%
home#errors 76 ms 100.0%
users/index 8 ms 10.5%
SELECT * FROM users WHERE id = ? 11 ms 14.5%
layouts/application 23 ms 30.3%
posts/show 21 ms 27.7%
home#errors 76 ms 100.0%
home#errors 76 ms 100.0%
layouts/application 11 ms 14.5%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 14 ms 18.5%
home#errors 76 ms 100.0%
SELECT * FROM users WHERE id = ? 33 ms 43.5%
home#errors 76 ms 100.0%
home#errors 76 ms 100.0%
home#errors 76 ms 100.0%