Request Details

Route
/api_simple GET
Timestamp
Sep 16, 2026 11:16 AM
Duration
12.55 ms
Status
200
Response Size
526 Bytes
Error
No

Performance Breakdown

Database
38.3% (3 queries)
View Rendering
44.5%
Application Logic
17.2%
Other Operations
0.0%
Total Operations
8
Slowest Operation
40.0 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 36.5ms 73.0ms 109.6ms 146.1ms

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 40 ms 318.8%
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... 21 ms 167.4%
posts/show 11 ms 87.7%
home#api_simple 13 ms 100.0%
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... 30 ms 239.1%
home#api_simple 13 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 5 ms 39.9%
posts/show 14 ms 111.6%