Request Details

Route
/api_simple GET
Timestamp
Sep 20, 2026 7:13 AM
Duration
10.0 ms
Status
200
Response Size
179 Bytes
Error
No

Performance Breakdown

Database
26.2% (2 queries)
View Rendering
65.9%
Application Logic
7.9%
Other Operations
0.0%
Total Operations
6
Slowest Operation
39.0 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 31.5ms 63.0ms 94.5ms 126.0ms

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 name FROM users 32 ms 320.0%
home/index 39 ms 390.0%
posts/show 36 ms 360.0%
home#api_simple 10 ms 100.0%
layouts/application 8 ms 80.0%
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... 1 ms 10.0%