Request Details

Route
/error_prone GET
Timestamp
Sep 23, 2026 3:56 AM
Duration
127.95 ms
Status
201
Response Size
7.1 KB
Error
No

Performance Breakdown

Database
11.3% (5 queries)
View Rendering
4.3%
Application Logic
84.3%
Other Operations
0.0%
Total Operations
12
Slowest Operation
127.95 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 189.7ms 379.4ms 569.1ms 758.8ms

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 comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 8 ms 6.3%
home#errors 128 ms 100.0%
home#errors 128 ms 100.0%
home#errors 128 ms 100.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 17 ms 13.3%
SELECT id, name, email FROM users WHERE id = ? 12 ms 9.4%
home#errors 128 ms 100.0%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 17 ms 13.3%
users/index 6 ms 4.7%
users/index 27 ms 21.1%
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... 32 ms 25.0%
home#errors 128 ms 100.0%