Request Details

Route
/comments POST
Timestamp
Sep 21, 2026 1:12 AM
Duration
60.43 ms
Status
204
Response Size
13 KB
Error
No

Performance Breakdown

Database
36.8% (3 queries)
View Rendering
24.8%
Application Logic
38.4%
Other Operations
0.0%
Total Operations
5
Slowest Operation
60.43 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 39.4ms 78.7ms 118.1ms 157.4ms

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 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... 9 ms 14.9%
comments#create 60 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 29 ms 48.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 20 ms 33.1%
posts/show 39 ms 64.5%