Request Details

Route
/error_prone GET
Timestamp
Sep 10, 2026 11:03 AM
Duration
181.64 ms
Status
200
Response Size
5.5 KB
Error
No

Performance Breakdown

Database
8.3% (4 queries)
View Rendering
49.9%
Application Logic
41.8%
Other Operations
0.0%
Total Operations
13
Slowest Operation
181.64 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 108.7ms 217.3ms 326.0ms 434.6ms

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
UPDATE posts SET view_count = view_count + ? WHERE published = ? 4 ms 2.2%
SELECT * FROM users WHERE id = ? 5 ms 2.8%
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 4.4%
users/index 29 ms 16.0%
users/index 35 ms 19.3%
users/index 37 ms 20.4%
layouts/application 7 ms 3.9%
posts/show 39 ms 21.5%
home#errors 182 ms 100.0%
layouts/application 29 ms 16.0%
layouts/application 19 ms 10.5%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 19 ms 10.5%
users/index 22 ms 12.1%