Request Details

Route
/robots.txt GET
Timestamp
Sep 16, 2026 1:47 PM
Duration
10.0 ms
Status
204
Response Size
119 Bytes
Error
No

Performance Breakdown

Database
43.7% (4 queries)
View Rendering
50.0%
Application Logic
6.3%
Other Operations
0.0%
Total Operations
8
Slowest Operation
37.0 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 39.5ms 79.0ms 118.5ms 158.0ms

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
users/index 37 ms 370.0%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 5 ms 50.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 32 ms 320.0%
robots.txt#index 10 ms 100.0%
home/index 17 ms 170.0%
SELECT users.*, posts.*, comments.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, AVG(posts.view_count) as avg_views, MAX(comments.created_at) as latest_comment FROM users LEFT JOIN posts ON users.id = posts.use... 25 ms 250.0%
layouts/application 25 ms 250.0%
SELECT * FROM users WHERE id = ? 7 ms 70.0%