Request Details

Route
/error_prone GET
Timestamp
Sep 22, 2026 6:36 PM
Duration
65.81 ms
Status
204
Response Size
4.3 KB
Error
No

Performance Breakdown

Database
18.2% (3 queries)
View Rendering
17.6%
Application Logic
64.2%
Other Operations
0.0%
Total Operations
9
Slowest Operation
65.81 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 76.9ms 153.7ms 230.6ms 307.4ms

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
posts/show 7 ms 10.6%
posts/show 25 ms 38.0%
home#errors 66 ms 100.0%
home#errors 66 ms 100.0%
home#errors 66 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 19 ms 28.9%
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 > ? 9 ms 13.7%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 28 ms 42.5%
layouts/application 22 ms 33.4%