Request Details

Route
/api_simple GET
Timestamp
Sep 22, 2026 5:04 PM
Duration
10.0 ms
Status
201
Response Size
1.3 KB
Error
No

Performance Breakdown

Database
71.2% (4 queries)
View Rendering
9.6%
Application Logic
19.2%
Other Operations
0.0%
Total Operations
7
Slowest Operation
33.0 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 26.0ms 52.0ms 78.0ms 104.0ms

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 DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 25 ms 250.0%
layouts/application 10 ms 100.0%
home#api_simple 10 ms 100.0%
home#api_simple 10 ms 100.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 33 ms 330.0%
SELECT name FROM users 2 ms 20.0%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 14 ms 140.0%