Request Details

Route
/api_simple GET
Timestamp
Sep 23, 2026 5:35 AM
Duration
25.54 ms
Status
201
Response Size
1.6 KB
Error
No

Performance Breakdown

Database
44.3% (3 queries)
View Rendering
35.6%
Application Logic
20.2%
Other Operations
0.0%
Total Operations
6
Slowest Operation
32.0 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 31.6ms 63.3ms 94.9ms 126.5ms

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 26 ms 100.0%
SELECT * FROM users WHERE id = ? 16 ms 62.6%
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 > ? 13 ms 50.9%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 27 ms 105.7%
users/index 32 ms 125.3%
layouts/application 13 ms 50.9%