Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 12:27 AM
Duration
88.6 ms
Status
204
Response Size
90 KB
Error
No

Performance Breakdown

Database
10.7% (4 queries)
View Rendering
11.6%
Application Logic
77.7%
Other Operations
0.0%
Total Operations
10
Slowest Operation
88.6 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 114.1ms 228.2ms 342.3ms 456.4ms

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 users WHERE id = ? 16 ms 18.1%
home#api_complex 89 ms 100.0%
users/index 13 ms 14.7%
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... 3 ms 3.4%
home#api_complex 89 ms 100.0%
home#api_complex 89 ms 100.0%
SELECT * FROM users WHERE id = ? 15 ms 16.9%
home#api_complex 89 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 15 ms 16.9%
layouts/application 40 ms 45.1%