Request Details

Route
/comments POST
Timestamp
Sep 22, 2026 9:58 PM
Duration
30.63 ms
Status
204
Response Size
3.3 KB
Error
No

Performance Breakdown

Database
39.5% (2 queries)
View Rendering
0.0%
Application Logic
60.5%
Other Operations
0.0%
Total Operations
5
Slowest Operation
33.0 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
Database
0.0ms 38.0ms 75.9ms 113.9ms 151.9ms

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 comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 27 ms 88.2%
comments#create 31 ms 100.0%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 33 ms 107.8%
comments#create 31 ms 100.0%
comments#create 31 ms 100.0%