Request Details

Route
/comments POST
Timestamp
Sep 23, 2026 4:15 AM
Duration
66.6 ms
Status
201
Response Size
10 KB
Error
No

Performance Breakdown

Database
12.3% (2 queries)
View Rendering
21.5%
Application Logic
66.2%
Other Operations
0.0%
Total Operations
7
Slowest Operation
66.6 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 75.5ms 150.9ms 226.4ms 301.8ms

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 28 ms 42.0%
SELECT * FROM users WHERE id = ? 30 ms 45.0%
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 10.5%
comments#create 67 ms 100.0%
comments#create 67 ms 100.0%
comments#create 67 ms 100.0%
posts/show 37 ms 55.6%