Request Details

Route
/comments POST
Timestamp
Sep 09, 2026 11:23 PM
Duration
28.59 ms
Status
201
Response Size
3.1 KB
Error
No

Performance Breakdown

Database
52.9% (2 queries)
View Rendering
47.1%
Application Logic
0.0%
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
View
Database
0.0ms 8.5ms 17.0ms 25.5ms 34.0ms

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 16 ms 56.0%
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... 7 ms 24.5%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 11 ms 38.5%