Request Details

Route
/robots.txt GET
Timestamp
Sep 13, 2026 7:52 PM
Duration
10.0 ms
Status
204
Response Size
100 Bytes
Error
No

Performance Breakdown

Database
19.8% (2 queries)
View Rendering
74.3%
Application Logic
6.0%
Other Operations
0.0%
Total Operations
8
Slowest Operation
35.0 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 41.8ms 83.5ms 125.3ms 167.0ms

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
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... 2 ms 20.0%
posts/show 29 ms 290.0%
posts/show 23 ms 230.0%
layouts/application 18 ms 180.0%
robots.txt#index 10 ms 100.0%
users/index 19 ms 190.0%
SELECT name FROM users 31 ms 310.0%
layouts/application 35 ms 350.0%