Request Details

Route
/users POST
Timestamp
Sep 22, 2026 5:01 PM
Duration
40.23 ms
Status
400
Response Size
633 Bytes
Error
No

Performance Breakdown

Database
17.0% (1 query)
View Rendering
34.1%
Application Logic
48.9%
Other Operations
0.0%
Total Operations
6
Slowest Operation
40.23 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 41.1ms 82.2ms 123.3ms 164.5ms

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
users#create 40 ms 100.0%
posts/show 15 ms 37.3%
home/index 26 ms 64.6%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 28 ms 69.6%
posts/show 15 ms 37.3%
users#create 40 ms 100.0%