Request Details

Route
/comments POST
Timestamp
Sep 09, 2026 6:04 PM
Duration
66.82 ms
Status
201
Response Size
2.7 KB
Error
No

Performance Breakdown

Database
46.6% (3 queries)
View Rendering
15.4%
Application Logic
38.0%
Other Operations
0.0%
Total Operations
5
Slowest Operation
66.82 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 44.0ms 87.9ms 131.9ms 175.8ms

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
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 28 ms 41.9%
home/index 27 ms 40.4%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 27 ms 40.4%
comments#create 67 ms 100.0%
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... 27 ms 40.4%