Request Details

Route
/api_simple GET
Timestamp
Sep 09, 2026 4:38 PM
Duration
30.43 ms
Status
200
Response Size
1.6 KB
Error
No

Performance Breakdown

Database
5.7% (1 query)
View Rendering
59.9%
Application Logic
34.4%
Other Operations
0.0%
Total Operations
5
Slowest Operation
35.0 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 22.1ms 44.2ms 66.3ms 88.4ms

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_simple 30 ms 100.0%
home/index 35 ms 115.0%
home/index 7 ms 23.0%
layouts/application 11 ms 36.2%
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... 5 ms 16.4%