Request Details

Route
/api_simple GET
Timestamp
Sep 13, 2026 3:44 AM
Duration
12.94 ms
Status
201
Response Size
350 Bytes
Error
No

Performance Breakdown

Database
59.2% (5 queries)
View Rendering
19.2%
Application Logic
21.6%
Other Operations
0.0%
Total Operations
8
Slowest Operation
24.0 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 30.0ms 59.9ms 89.9ms 119.9ms

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_simple 13 ms 100.0%
SELECT * FROM users WHERE id = ? 18 ms 139.1%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 15 ms 115.9%
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... 8 ms 61.8%
home/index 23 ms 177.7%
home#api_simple 13 ms 100.0%
SELECT users.* FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id WHERE users.active = ? AND posts.published = ? AND comments.approved = ? OR users.created_at > ? AND posts.created_at > ? AND commen... 6 ms 46.4%
SELECT * FROM users WHERE id = ? 24 ms 185.5%