Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 8:16 PM
Duration
130.93 ms
Status
204
Response Size
72 KB
Error
No

Performance Breakdown

Database
10.3% (3 queries)
View Rendering
28.5%
Application Logic
61.2%
Other Operations
0.0%
Total Operations
10
Slowest Operation
130.93 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 107.0ms 213.9ms 320.9ms 427.9ms

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 131 ms 100.0%
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... 10 ms 7.6%
layouts/application 17 ms 13.0%
users/index 34 ms 26.0%
UPDATE posts SET view_count = view_count + ? WHERE published = ? 23 ms 17.6%
home/index 16 ms 12.2%
home#api_complex 131 ms 100.0%
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... 11 ms 8.4%
home/index 28 ms 21.4%
home/index 27 ms 20.6%