Request Details

Route
/api_simple GET
Timestamp
Sep 09, 2026 2:17 PM
Duration
23.82 ms
Status
200
Response Size
1.8 KB
Error
No

Performance Breakdown

Database
48.3% (3 queries)
View Rendering
17.3%
Application Logic
34.4%
Other Operations
0.0%
Total Operations
6
Slowest Operation
35.0 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 34.7ms 69.3ms 104.0ms 138.6ms

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 * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 35 ms 146.9%
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 > ? 2 ms 8.4%
layouts/application 24 ms 100.8%
home#api_simple 24 ms 100.0%
home#api_simple 24 ms 100.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 30 ms 125.9%