Request Details

Route
/api_simple GET
Timestamp
Sep 09, 2026 4:07 PM
Duration
32.15 ms
Status
201
Response Size
1.5 KB
Error
No

Performance Breakdown

Database
17.4% (1 query)
View Rendering
18.4%
Application Logic
64.1%
Other Operations
0.0%
Total Operations
7
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 50.2ms 100.3ms 150.5ms 200.6ms

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
users/index 5 ms 15.6%
home#api_simple 32 ms 100.0%
home#api_simple 32 ms 100.0%
home#api_simple 32 ms 100.0%
layouts/application 32 ms 99.5%
home#api_simple 32 ms 100.0%
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... 35 ms 108.9%