Request Details

Route
/api_complex GET
Timestamp
Sep 23, 2026 12:04 AM
Duration
252.63 ms
Status
204
Response Size
60 KB
Error
No

Performance Breakdown

Database
7.1% (6 queries)
View Rendering
5.9%
Application Logic
87.0%
Other Operations
0.0%
Total Operations
16
Slowest Operation
252.63 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 363.0ms 726.1ms 1089.1ms 1452.1ms

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
posts/show 10 ms 4.0%
SELECT * FROM posts WHERE created_at > ? 24 ms 9.5%
home/index 18 ms 7.1%
home#api_complex 253 ms 100.0%
home#api_complex 253 ms 100.0%
home#api_complex 253 ms 100.0%
layouts/application 21 ms 8.3%
SELECT name FROM users 18 ms 7.1%
layouts/application 23 ms 9.1%
home#api_complex 253 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 8 ms 3.2%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 8 ms 3.2%
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... 29 ms 11.5%
SELECT name FROM users 16 ms 6.3%
home#api_complex 253 ms 100.0%
home/index 14 ms 5.5%