Request Details

Route
/api_simple GET
Timestamp
Sep 22, 2026 6:26 AM
Duration
28.65 ms
Status
200
Response Size
719 Bytes
Error
No

Performance Breakdown

Database
33.8% (3 queries)
View Rendering
36.9%
Application Logic
29.3%
Other Operations
0.0%
Total Operations
7
Slowest Operation
38.0 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 48.8ms 97.6ms 146.5ms 195.3ms

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
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 > ? 20 ms 69.8%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 18 ms 62.8%
layouts/application 38 ms 132.6%
users/index 34 ms 118.7%
home#api_simple 29 ms 100.0%
DELETE FROM comments WHERE created_at < ? 28 ms 97.7%
home#api_simple 29 ms 100.0%