Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 2:15 AM
Duration
169.31 ms
Status
201
Response Size
52 KB
Error
No

Performance Breakdown

Database
2.4% (1 query)
View Rendering
6.0%
Application Logic
91.5%
Other Operations
0.0%
Total Operations
10
Slowest Operation
169.31 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 277.5ms 554.9ms 832.4ms 1109.9ms

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#api_complex 169 ms 100.0%
users/index 36 ms 21.3%
home#api_complex 169 ms 100.0%
home#api_complex 169 ms 100.0%
home#api_complex 169 ms 100.0%
home#api_complex 169 ms 100.0%
home#api_complex 169 ms 100.0%
layouts/application 7 ms 4.1%
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... 27 ms 15.9%
home/index 24 ms 14.2%