Request Details

Route
/comments POST
Timestamp
Sep 22, 2026 11:57 AM
Duration
16.19 ms
Status
204
Response Size
6.3 KB
Error
No

Performance Breakdown

Database
53.3% (3 queries)
View Rendering
8.6%
Application Logic
38.1%
Other Operations
0.0%
Total Operations
7
Slowest Operation
30.0 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 31.9ms 63.8ms 95.7ms 127.6ms

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
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... 17 ms 105.0%
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... 21 ms 129.7%
layouts/application 11 ms 67.9%
SELECT name FROM users 30 ms 185.3%
comments#create 16 ms 100.0%
comments#create 16 ms 100.0%
comments#create 16 ms 100.0%