Request Details

Route
/users/:id GET
Timestamp
Sep 20, 2026 3:43 PM
Duration
35.76 ms
Status
200
Response Size
18 KB
Error
No

Performance Breakdown

Database
62.7% (4 queries)
View Rendering
15.7%
Application Logic
21.6%
Other Operations
0.0%
Total Operations
6
Slowest Operation
35.76 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 41.4ms 82.9ms 124.3ms 165.8ms

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
home/index 26 ms 72.7%
SELECT * FROM posts WHERE created_at > ? 30 ms 83.9%
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... 34 ms 95.1%
users#show 36 ms 100.0%
UPDATE posts SET title = ?, content = ?, updated_at = ? WHERE id = ? 11 ms 30.8%
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... 29 ms 81.1%