Request Details

Route
/api_complex GET
Timestamp
Sep 16, 2026 7:25 AM
Duration
106.0 ms
Status
204
Response Size
33 KB
Error
No

Performance Breakdown

Database
6.9% (4 queries)
View Rendering
5.2%
Application Logic
87.9%
Other Operations
0.0%
Total Operations
15
Slowest Operation
106.0 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 271.3ms 542.5ms 813.8ms 1085.0ms

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
layouts/application 21 ms 19.8%
home#api_complex 106 ms 100.0%
home#api_complex 106 ms 100.0%
home#api_complex 106 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... 17 ms 16.0%
home#api_complex 106 ms 100.0%
home#api_complex 106 ms 100.0%
home/index 35 ms 33.0%
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... 16 ms 15.1%
home#api_complex 106 ms 100.0%
home#api_complex 106 ms 100.0%
home#api_complex 106 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 17 ms 16.0%
home#api_complex 106 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... 25 ms 23.6%