Request Details

Route
/api_complex GET
Timestamp
Sep 11, 2026 8:21 PM
Duration
175.87 ms
Status
200
Response Size
43 KB
Error
No

Performance Breakdown

Database
8.1% (8 queries)
View Rendering
3.4%
Application Logic
88.5%
Other Operations
0.0%
Total Operations
19
Slowest Operation
175.87 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 397.5ms 795.0ms 1192.5ms 1590.0ms

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
users/index 26 ms 14.8%
home#api_complex 176 ms 100.0%
SELECT name FROM users 1 ms 0.6%
SELECT * FROM users WHERE id = ? 23 ms 13.1%
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... 21 ms 11.9%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 30 ms 17.1%
SELECT * FROM users WHERE id = ? 2 ms 1.1%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 5 ms 2.8%
home#api_complex 176 ms 100.0%
SELECT * FROM users WHERE id = ? 24 ms 13.6%
home#api_complex 176 ms 100.0%
home#api_complex 176 ms 100.0%
home/index 11 ms 6.3%
home#api_complex 176 ms 100.0%
layouts/application 17 ms 9.7%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 23 ms 13.1%
home#api_complex 176 ms 100.0%
home#api_complex 176 ms 100.0%
home#api_complex 176 ms 100.0%