Request Details

Route
/api_simple GET
Timestamp
Sep 19, 2026 2:51 PM
Duration
12.07 ms
Status
204
Response Size
369 Bytes
Error
No

Performance Breakdown

Database
17.3% (2 queries)
View Rendering
30.3%
Application Logic
52.3%
Other Operations
0.0%
Total Operations
7
Slowest Operation
28.0 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 23.1ms 46.1ms 69.2ms 92.3ms

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
layouts/application 28 ms 231.9%
SELECT name FROM users 2 ms 16.6%
home#api_simple 12 ms 100.0%
home#api_simple 12 ms 100.0%
home#api_simple 12 ms 100.0%
home#api_simple 12 ms 100.0%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 14 ms 116.0%