Request Details

Route
/robots.txt GET
Timestamp
Sep 12, 2026 9:43 PM
Duration
10.0 ms
Status
200
Response Size
188 Bytes
Error
No

Performance Breakdown

Database
39.7% (2 queries)
View Rendering
52.9%
Application Logic
7.4%
Other Operations
0.0%
Total Operations
5
Slowest Operation
36.0 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 34.0ms 68.0ms 102.0ms 136.0ms

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
robots.txt#index 10 ms 100.0%
users/index 36 ms 360.0%
layouts/application 36 ms 360.0%
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... 25 ms 250.0%
UPDATE posts SET view_count = view_count + ? WHERE published = ? 29 ms 290.0%