Request Details

Route
/users/:id GET
Timestamp
Sep 12, 2026 10:06 AM
Duration
39.82 ms
Status
200
Response Size
18 KB
Error
No

Performance Breakdown

Database
24.2% (2 queries)
View Rendering
31.9%
Application Logic
43.8%
Other Operations
0.0%
Total Operations
5
Slowest Operation
39.82 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 22.7ms 45.4ms 68.1ms 90.8ms

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 * FROM posts WHERE created_at > ? 14 ms 35.2%
layouts/application 18 ms 45.2%
users#show 40 ms 100.0%
SELECT users.*, posts.*, comments.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, AVG(posts.view_count) as avg_views, MAX(comments.created_at) as latest_comment FROM users LEFT JOIN posts ON users.id = posts.use... 8 ms 20.1%
layouts/application 11 ms 27.6%