Request Details

Route
/fast GET
Timestamp
Sep 10, 2026 12:20 PM
Duration
10.01 ms
Status
200
Response Size
761 Bytes
Error
No

Performance Breakdown

Database
46.7% (1 query)
View Rendering
53.3%
Application Logic
0.0%
Other Operations
0.0%
Total Operations
3
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
View
Database
0.0ms 18.8ms 37.5ms 56.3ms 75.0ms

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 18 ms 179.7%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 35 ms 349.5%
posts/show 22 ms 219.7%