Request Details

Route
/api/v1/users GET
Timestamp
Sep 14, 2026 2:25 PM
Duration
40.65 ms
Status
204
Response Size
12 KB
Error
No

Performance Breakdown

Database
11.9% (2 queries)
View Rendering
39.7%
Application Logic
48.4%
Other Operations
0.0%
Total Operations
8
Slowest Operation
40.65 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 63.0ms 126.0ms 189.0ms 251.9ms

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
api/v1/users#index 41 ms 100.0%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 10 ms 24.6%
api/v1/users#index 41 ms 100.0%
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 > ? 20 ms 49.2%
api/v1/users#index 41 ms 100.0%
home/index 25 ms 61.5%
users/index 36 ms 88.6%
home/index 39 ms 95.9%