Request Details

Route
/fast GET
Timestamp
Sep 18, 2026 3:26 PM
Duration
10.0 ms
Status
204
Response Size
2.3 KB
Error
No

Performance Breakdown

Database
37.5% (1 query)
View Rendering
62.5%
Application Logic
0.0%
Other Operations
0.0%
Total Operations
2
Slowest Operation
20.0 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 8.0ms 16.0ms 24.0ms 32.0ms

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
posts/show 20 ms 200.0%
SELECT users.* FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id WHERE users.active = ? AND posts.published = ? AND comments.approved = ? OR users.created_at > ? AND posts.created_at > ? AND commen... 12 ms 120.0%