Request Details

Route
/error_prone GET
Timestamp
Sep 21, 2026 6:56 PM
Duration
28.19 ms
Status
201
Response Size
2.8 KB
Error
No

Performance Breakdown

Database
21.6% (3 queries)
View Rendering
46.9%
Application Logic
31.5%
Other Operations
0.0%
Total Operations
10
Slowest Operation
38.0 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 67.1ms 134.3ms 201.4ms 268.6ms

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 28 ms 99.3%
layouts/application 30 ms 106.4%
home#errors 28 ms 100.0%
SELECT COUNT(*) FROM comments WHERE post_id = ? 25 ms 88.7%
layouts/application 38 ms 134.8%
home#errors 28 ms 100.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 22 ms 78.0%
layouts/application 30 ms 106.4%
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... 11 ms 39.0%
home#errors 28 ms 100.0%