Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 11:36 PM
Duration
125.52 ms
Status
204
Response Size
58 KB
Error
No

Performance Breakdown

Database
8.6% (4 queries)
View Rendering
5.9%
Application Logic
85.5%
Other Operations
0.0%
Total Operations
12
Slowest Operation
125.52 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 220.3ms 440.6ms 660.8ms 881.1ms

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 126 ms 100.0%
home#api_complex 126 ms 100.0%
users/index 28 ms 22.3%
SELECT * FROM users WHERE id = ? 29 ms 23.1%
home/index 24 ms 19.1%
home#api_complex 126 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 7 ms 5.6%
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... 21 ms 16.7%
home#api_complex 126 ms 100.0%
home#api_complex 126 ms 100.0%
home#api_complex 126 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 19 ms 15.1%