Request Details

Route
/users/:id PUT
Timestamp
Sep 23, 2026 12:41 AM
Duration
40.03 ms
Status
201
Response Size
14 KB
Error
No

Performance Breakdown

Database
29.5% (2 queries)
View Rendering
47.7%
Application Logic
22.7%
Other Operations
0.0%
Total Operations
6
Slowest Operation
40.03 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 44.0ms 88.0ms 132.0ms 176.0ms

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
layouts/application 33 ms 82.4%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 35 ms 87.4%
layouts/application 24 ms 59.9%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 17 ms 42.5%
users#update 40 ms 100.0%
layouts/application 27 ms 67.4%