Request Details

Route
/robots.txt GET
Timestamp
Sep 10, 2026 12:11 PM
Duration
30.0 ms
Status
204
Response Size
166 Bytes
Error
No

Performance Breakdown

Database
48.4% (3 queries)
View Rendering
51.6%
Application Logic
0.0%
Other Operations
0.0%
Total Operations
5
Slowest Operation
34.0 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
View
Database
0.0ms 30.5ms 61.0ms 91.5ms 122.0ms

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 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... 11 ms 36.7%
layouts/application 29 ms 96.7%
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... 17 ms 56.7%
home/index 34 ms 113.3%
SELECT * FROM posts WHERE created_at > ? 31 ms 103.3%