Request Details

Route
/fast GET
Timestamp
Sep 16, 2026 3:39 AM
Duration
10.0 ms
Status
201
Response Size
1.6 KB
Error
No

Performance Breakdown

Database
38.1% (1 query)
View Rendering
38.1%
Application Logic
23.8%
Other Operations
0.0%
Total Operations
3
Slowest Operation
16.0 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 10.5ms 21.0ms 31.5ms 42.0ms

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
layouts/application 16 ms 160.0%
home#fast 10 ms 100.0%
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... 16 ms 160.0%