Request Details

Route
/error_prone GET
Timestamp
Sep 22, 2026 11:32 PM
Duration
68.2 ms
Status
201
Response Size
3.4 KB
Error
No

Performance Breakdown

Database
21.7% (5 queries)
View Rendering
28.6%
Application Logic
49.7%
Other Operations
0.0%
Total Operations
17
Slowest Operation
68.2 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 137.2ms 274.4ms 411.6ms 548.8ms

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 posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 6 ms 8.8%
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... 33 ms 48.4%
users/index 34 ms 49.9%
home#errors 68 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... 27 ms 39.6%
posts/show 10 ms 14.7%
layouts/application 24 ms 35.2%
SELECT * FROM users WHERE id = ? 29 ms 42.5%
SELECT users.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, SUM(posts.view_count) as total_views, AVG(posts.view_count) as avg_views, MIN(posts.created_at) as first_post, MAX(posts.created_at) as latest_post FR... 24 ms 35.2%
posts/show 31 ms 45.5%
layouts/application 13 ms 19.1%
home#errors 68 ms 100.0%
home#errors 68 ms 100.0%
layouts/application 9 ms 13.2%
posts/show 11 ms 16.1%
home#errors 68 ms 100.0%
layouts/application 25 ms 36.7%