Request Details

Route
/comments POST
Timestamp
Sep 09, 2026 1:35 PM
Duration
18.06 ms
Status
204
Response Size
16 KB
Error
No

Performance Breakdown

Database
42.1% (2 queries)
View Rendering
26.3%
Application Logic
31.6%
Other Operations
0.0%
Total Operations
4
Slowest Operation
22.0 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
View
Database
0.0ms 14.3ms 28.5ms 42.8ms 57.1ms

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 DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 22 ms 121.8%
comments#create 18 ms 100.0%
SELECT name FROM users 2 ms 11.1%
users/index 15 ms 83.1%