Request Details

Route
/error_prone GET
Timestamp
Sep 20, 2026 3:35 AM
Duration
46.1 ms
Status
200
Response Size
963 Bytes
Error
No

Performance Breakdown

Database
27.3% (4 queries)
View Rendering
13.7%
Application Logic
59.0%
Other Operations
0.0%
Total Operations
9
Slowest Operation
46.1 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 58.6ms 117.2ms 175.7ms 234.3ms

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
home#errors 46 ms 100.0%
home#errors 46 ms 100.0%
posts/show 24 ms 52.1%
users/index 8 ms 17.4%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 9 ms 19.5%
SELECT id, name, email FROM users WHERE id = ? 1 ms 2.2%
home#errors 46 ms 100.0%
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 > ? 22 ms 47.7%
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... 32 ms 69.4%