Request Details

Route
/api_complex GET
Timestamp
Sep 13, 2026 2:55 PM
Duration
125.2 ms
Status
204
Response Size
70 KB
Error
No

Performance Breakdown

Database
12.8% (4 queries)
View Rendering
23.2%
Application Logic
64.0%
Other Operations
0.0%
Total Operations
12
Slowest Operation
125.2 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 146.7ms 293.3ms 440.0ms 586.6ms

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 39 ms 31.1%
DELETE FROM comments WHERE created_at < ? 22 ms 17.6%
users/index 22 ms 17.6%
layouts/application 26 ms 20.8%
home#api_complex 125 ms 100.0%
posts/show 21 ms 16.8%
home#api_complex 125 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 19 ms 15.2%
home#api_complex 125 ms 100.0%
SELECT posts.* FROM posts WHERE title LIKE ? OR content LIKE ? 14 ms 11.2%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 20 ms 16.0%
home/index 28 ms 22.4%