Request Details

Route
/users POST
Timestamp
Sep 16, 2026 12:27 PM
Duration
17.96 ms
Status
201
Response Size
6.5 KB
Error
No

Performance Breakdown

Database
32.0% (3 queries)
View Rendering
50.0%
Application Logic
18.0%
Other Operations
0.0%
Total Operations
8
Slowest Operation
37.0 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 50.0ms 100.0ms 149.9ms 199.9ms

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
layouts/application 37 ms 206.1%
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 > ? 16 ms 89.1%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 34 ms 189.4%
layouts/application 37 ms 206.1%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 14 ms 78.0%
users#create 18 ms 100.0%
home/index 26 ms 144.8%
users#create 18 ms 100.0%