Request Details

Route
/error_prone GET
Timestamp
Sep 21, 2026 9:27 PM
Duration
44.29 ms
Status
204
Response Size
1.6 KB
Error
No

Performance Breakdown

Database
32.3% (8 queries)
View Rendering
20.2%
Application Logic
47.5%
Other Operations
0.0%
Total Operations
20
Slowest Operation
44.29 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 139.9ms 279.9ms 419.8ms 559.8ms

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
SELECT * FROM users WHERE id = ? 33 ms 74.5%
home#errors 44 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 27 ms 61.0%
home#errors 44 ms 100.0%
home#errors 44 ms 100.0%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 33 ms 74.5%
layouts/application 11 ms 24.8%
SELECT * FROM posts WHERE created_at > ? 25 ms 56.4%
SELECT * FROM users WHERE id = ? 1 ms 2.3%
home/index 33 ms 74.5%
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 24.8%
layouts/application 9 ms 20.3%
home#errors 44 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 31 ms 70.0%
posts/show 33 ms 74.5%
SELECT posts.title, posts.content, users.name FROM posts JOIN users ON posts.user_id = users.id WHERE posts.published = ? 20 ms 45.2%
home/index 8 ms 18.1%
users/index 19 ms 42.9%
home#errors 44 ms 100.0%
home#errors 44 ms 100.0%