Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 2:42 PM
Duration
217.59 ms
Status
201
Response Size
37 KB
Error
No

Performance Breakdown

Database
8.2% (6 queries)
View Rendering
5.6%
Application Logic
86.1%
Other Operations
0.0%
Total Operations
13
Slowest Operation
217.59 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 315.7ms 631.5ms 947.2ms 1263.0ms

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 37 ms 17.0%
DELETE FROM posts WHERE id = ? 31 ms 14.2%
home#api_complex 218 ms 100.0%
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... 4 ms 1.8%
home#api_complex 218 ms 100.0%
home#api_complex 218 ms 100.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 26 ms 11.9%
users/index 34 ms 15.6%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 21 ms 9.7%
SELECT * FROM users WHERE id = ? 9 ms 4.1%
home#api_complex 218 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... 13 ms 6.0%
home#api_complex 218 ms 100.0%