Request Details

Route
/users/:id GET
Timestamp
Sep 19, 2026 8:27 PM
Duration
40.29 ms
Status
404
Response Size
1.6 KB
Error
No

Performance Breakdown

Database
33.1% (3 queries)
View Rendering
29.9%
Application Logic
37.0%
Other Operations
0.0%
Total Operations
8
Slowest Operation
40.29 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 54.4ms 108.8ms 163.2ms 217.6ms

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#show 40 ms 100.0%
posts/show 16 ms 39.7%
users#show 40 ms 100.0%
DELETE FROM comments WHERE created_at < ? 16 ms 39.7%
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... 25 ms 62.1%
layouts/application 20 ms 49.6%
layouts/application 29 ms 72.0%
SELECT * FROM users WHERE id = ? 31 ms 76.9%