Request Details

Route
/comments POST
Timestamp
Sep 09, 2026 10:17 AM
Duration
51.76 ms
Status
201
Response Size
4.2 KB
Error
No

Performance Breakdown

Database
24.2% (2 queries)
View Rendering
0.0%
Application Logic
75.8%
Other Operations
0.0%
Total Operations
4
Slowest Operation
51.76 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 34.1ms 68.3ms 102.4ms 136.5ms

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 52 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... 21 ms 40.6%
SELECT name FROM users 12 ms 23.2%
comments#create 52 ms 100.0%