Request Details

Route
/api_simple GET
Timestamp
Sep 23, 2026 10:39 PM
Duration
10.0 ms
Status
204
Response Size
917 Bytes
Error
No

Performance Breakdown

Database
55.6% (3 queries)
View Rendering
14.1%
Application Logic
30.3%
Other Operations
0.0%
Total Operations
7
Slowest Operation
21.0 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 24.8ms 49.5ms 74.3ms 99.0ms

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 COUNT(*) FROM comments WHERE post_id = ? 15 ms 150.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 21 ms 210.0%
home#api_simple 10 ms 100.0%
home#api_simple 10 ms 100.0%
home#api_simple 10 ms 100.0%
layouts/application 14 ms 140.0%
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... 19 ms 190.0%