Request Details

Route
/api_complex GET
Timestamp
Sep 21, 2026 6:05 PM
Duration
196.27 ms
Status
200
Response Size
28 KB
Error
No

Performance Breakdown

Database
8.4% (3 queries)
View Rendering
14.6%
Application Logic
77.0%
Other Operations
0.0%
Total Operations
10
Slowest Operation
196.27 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 191.2ms 382.4ms 573.6ms 764.8ms

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
home#api_complex 196 ms 100.0%
users/index 22 ms 11.2%
layouts/application 30 ms 15.3%
SELECT users.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, SUM(posts.view_count) as total_views, AVG(posts.view_count) as avg_views, MIN(posts.created_at) as first_post, MAX(posts.created_at) as latest_post FR... 9 ms 4.6%
home/index 38 ms 19.4%
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... 34 ms 17.3%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 21 ms 10.7%
home#api_complex 196 ms 100.0%
home#api_complex 196 ms 100.0%
users/index 22 ms 11.2%