Request Details

Route
/posts/:id PUT
Timestamp
Sep 16, 2026 10:06 PM
Duration
12.86 ms
Status
204
Response Size
3.8 KB
Error
No

Performance Breakdown

Database
39.2% (4 queries)
View Rendering
37.4%
Application Logic
23.4%
Other Operations
0.0%
Total Operations
8
Slowest Operation
22.0 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 27.4ms 54.9ms 82.3ms 109.7ms

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
posts#update 13 ms 100.0%
layouts/application 22 ms 171.1%
SELECT * FROM users WHERE id = ? 5 ms 38.9%
users/index 19 ms 147.8%
SELECT name FROM users 15 ms 116.7%
SELECT posts.title, posts.content, users.name FROM posts JOIN users ON posts.user_id = users.id WHERE posts.published = ? 6 ms 46.7%
posts#update 13 ms 100.0%
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... 17 ms 132.2%