Request Details

Route
/users/:id PUT
Timestamp
Sep 21, 2026 3:20 PM
Duration
67.1 ms
Status
204
Response Size
13 KB
Error
No

Performance Breakdown

Database
31.0% (3 queries)
View Rendering
37.5%
Application Logic
31.5%
Other Operations
0.0%
Total Operations
8
Slowest Operation
67.1 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 53.3ms 106.6ms 159.8ms 213.1ms

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
users/index 15 ms 22.4%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 30 ms 44.7%
SELECT name FROM users 1 ms 1.5%
users/index 27 ms 40.2%
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 52.2%
layouts/application 28 ms 41.7%
users#update 67 ms 100.0%
layouts/application 10 ms 14.9%