Request Details

Route
/comments POST
Timestamp
Sep 23, 2026 6:10 AM
Duration
41.58 ms
Status
200
Response Size
11 KB
Error
No

Performance Breakdown

Database
41.1% (2 queries)
View Rendering
29.9%
Application Logic
29.0%
Other Operations
0.0%
Total Operations
5
Slowest Operation
41.58 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 35.9ms 71.8ms 107.7ms 143.6ms

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
home/index 16 ms 38.5%
posts/show 27 ms 64.9%
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... 34 ms 81.8%
SELECT * FROM users WHERE id = ? 25 ms 60.1%
comments#create 42 ms 100.0%