Request Details

Route
/error_prone GET
Timestamp
Sep 22, 2026 1:40 PM
Duration
87.24 ms
Status
200
Response Size
6.3 KB
Error
No

Performance Breakdown

Database
10.8% (3 queries)
View Rendering
6.9%
Application Logic
82.2%
Other Operations
0.0%
Total Operations
11
Slowest Operation
87.24 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 159.1ms 318.2ms 477.3ms 636.4ms

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 87 ms 100.0%
home#errors 87 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... 21 ms 24.1%
home#errors 87 ms 100.0%
posts/show 14 ms 16.0%
SELECT name FROM users 24 ms 27.5%
DELETE FROM comments WHERE created_at < ? 24 ms 27.5%
home#errors 87 ms 100.0%
layouts/application 30 ms 34.4%
home#errors 87 ms 100.0%
home#errors 87 ms 100.0%