Request Details

Route
/robots.txt GET
Timestamp
Sep 23, 2026 12:25 PM
Duration
10.0 ms
Status
201
Response Size
100 Bytes
Error
No

Performance Breakdown

Database
44.3% (4 queries)
View Rendering
38.3%
Application Logic
17.4%
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 28.8ms 57.5ms 86.3ms 115.0ms

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%
layouts/application 9 ms 90.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 2 ms 20.0%
posts/show 35 ms 350.0%
robots.txt#index 10 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 3 ms 30.0%
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 > ? 15 ms 150.0%
UPDATE posts SET view_count = view_count + ? WHERE published = ? 31 ms 310.0%