Request Details

Route
/api_complex GET
Timestamp
Sep 19, 2026 12:42 PM
Duration
110.6 ms
Status
204
Response Size
27 KB
Error
No

Performance Breakdown

Database
9.1% (7 queries)
View Rendering
21.1%
Application Logic
69.7%
Other Operations
0.0%
Total Operations
25
Slowest Operation
110.6 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 317.2ms 634.4ms 951.6ms 1268.8ms

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 comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 32 ms 28.9%
posts/show 32 ms 28.9%
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... 17 ms 15.4%
home#api_complex 111 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 25 ms 22.6%
users/index 12 ms 10.8%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 4 ms 3.6%
home#api_complex 111 ms 100.0%
home/index 14 ms 12.7%
home#api_complex 111 ms 100.0%
home#api_complex 111 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 22 ms 19.9%
UPDATE posts SET title = ?, content = ?, updated_at = ? WHERE id = ? 3 ms 2.7%
home/index 32 ms 28.9%
SELECT * FROM users WHERE id = ? 13 ms 11.8%
home#api_complex 111 ms 100.0%
home#api_complex 111 ms 100.0%
home#api_complex 111 ms 100.0%
layouts/application 35 ms 31.6%
home/index 39 ms 35.3%
posts/show 14 ms 12.7%
home/index 31 ms 28.0%
users/index 24 ms 21.7%
layouts/application 35 ms 31.6%
home#api_complex 111 ms 100.0%