Request Details

Route
/users/:id PUT
Timestamp
Sep 22, 2026 8:22 PM
Duration
17.7 ms
Status
204
Response Size
5.6 KB
Error
No

Performance Breakdown

Database
33.5% (2 queries)
View Rendering
32.6%
Application Logic
33.9%
Other Operations
0.0%
Total Operations
5
Slowest Operation
34.0 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 26.1ms 52.2ms 78.3ms 104.4ms

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 users.* FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id WHERE users.active = ? AND posts.published = ? AND comments.approved = ? OR users.created_at > ? AND posts.created_at > ? AND commen... 9 ms 50.8%
users#update 18 ms 100.0%
layouts/application 34 ms 192.1%
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... 26 ms 146.9%
users#update 18 ms 100.0%