Request Details

Route
/comments POST
Timestamp
Sep 20, 2026 9:01 PM
Duration
15.38 ms
Status
204
Response Size
19 KB
Error
No

Performance Breakdown

Database
13.8% (2 queries)
View Rendering
33.3%
Application Logic
53.0%
Other Operations
0.0%
Total Operations
6
Slowest Operation
29.0 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 21.8ms 43.6ms 65.4ms 87.2ms

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
comments#create 15 ms 100.0%
SELECT id, name FROM users WHERE email = ? 10 ms 65.0%
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... 2 ms 13.0%
comments#create 15 ms 100.0%
comments#create 15 ms 100.0%
users/index 29 ms 188.5%