Request Details

Route
/error_prone GET
Timestamp
Sep 21, 2026 8:15 PM
Duration
26.45 ms
Status
200
Response Size
5.2 KB
Error
No

Performance Breakdown

Database
10.8% (3 queries)
View Rendering
13.7%
Application Logic
75.5%
Other Operations
0.0%
Total Operations
9
Slowest Operation
26.45 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 43.8ms 87.6ms 131.4ms 175.3ms

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 26 ms 100.0%
SELECT name FROM users 2 ms 7.6%
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... 8 ms 30.2%
home#errors 26 ms 100.0%
home#errors 26 ms 100.0%
users/index 24 ms 90.7%
home#errors 26 ms 100.0%
SELECT * FROM users WHERE id = ? 9 ms 34.0%
home#errors 26 ms 100.0%