Request Details

Route
/api_simple GET
Timestamp
Sep 09, 2026 12:46 PM
Duration
28.29 ms
Status
200
Response Size
795 Bytes
Error
No

Performance Breakdown

Database
1.6% (1 query)
View Rendering
52.2%
Application Logic
46.2%
Other Operations
0.0%
Total Operations
5
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 30.6ms 61.3ms 91.9ms 122.6ms

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 (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... 2 ms 7.1%
users/index 38 ms 134.3%
home#api_simple 28 ms 100.0%
home/index 26 ms 91.9%
home#api_simple 28 ms 100.0%