Request Details

Route
/comments POST
Timestamp
Sep 22, 2026 10:17 PM
Duration
60.53 ms
Status
200
Response Size
16 KB
Error
No

Performance Breakdown

Database
11.8% (3 queries)
View Rendering
4.2%
Application Logic
84.0%
Other Operations
0.0%
Total Operations
8
Slowest Operation
60.53 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 72.0ms 144.1ms 216.1ms 288.1ms

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 * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 3 ms 5.0%
comments#create 61 ms 100.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 30 ms 49.6%
users/index 12 ms 19.8%
comments#create 61 ms 100.0%
comments#create 61 ms 100.0%
comments#create 61 ms 100.0%
SELECT * FROM users WHERE id = ? 1 ms 1.7%