Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 12:25 AM
Duration
134.62 ms
Status
200
Response Size
14 KB
Error
No

Performance Breakdown

Database
11.6% (4 queries)
View Rendering
10.1%
Application Logic
78.3%
Other Operations
0.0%
Total Operations
14
Slowest Operation
134.62 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 215.0ms 430.1ms 645.1ms 860.1ms

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
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... 18 ms 13.4%
SELECT users.*, posts.*, comments.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, AVG(posts.view_count) as avg_views, MAX(comments.created_at) as latest_comment FROM users LEFT JOIN posts ON users.id = posts.use... 26 ms 19.3%
SELECT name FROM users 35 ms 26.0%
home#api_complex 135 ms 100.0%
home#api_complex 135 ms 100.0%
home#api_complex 135 ms 100.0%
posts/show 12 ms 8.9%
layouts/application 9 ms 6.7%
layouts/application 35 ms 26.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 21 ms 15.6%
home#api_complex 135 ms 100.0%
users/index 21 ms 15.6%
home#api_complex 135 ms 100.0%
layouts/application 10 ms 7.4%