Request Details

Route
/error_prone GET
Timestamp
Sep 22, 2026 5:55 PM
Duration
53.22 ms
Status
204
Response Size
2.8 KB
Error
No

Performance Breakdown

Database
16.6% (4 queries)
View Rendering
36.1%
Application Logic
47.3%
Other Operations
0.0%
Total Operations
12
Slowest Operation
53.22 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 84.4ms 168.8ms 253.2ms 337.7ms

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 32 ms 60.1%
home#errors 53 ms 100.0%
home/index 37 ms 69.5%
SELECT * FROM posts WHERE created_at > ? 17 ms 31.9%
home#errors 53 ms 100.0%
home#errors 53 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 13 ms 24.4%
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... 11 ms 20.7%
layouts/application 16 ms 30.1%
home/index 22 ms 41.3%
layouts/application 15 ms 28.2%
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 > ? 15 ms 28.2%