Request Details

Route
/users/:id GET
Timestamp
Sep 10, 2026 1:21 PM
Duration
16.06 ms
Status
201
Response Size
10 KB
Error
No

Performance Breakdown

Database
22.9% (1 query)
View Rendering
57.8%
Application Logic
19.3%
Other Operations
0.0%
Total Operations
4
Slowest Operation
40.0 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 20.8ms 41.5ms 62.3ms 83.1ms

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
layouts/application 40 ms 249.1%
home/index 8 ms 49.8%
users#show 16 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... 19 ms 118.3%