Request Details

Route
/api/v1/users GET
Timestamp
Sep 16, 2026 11:01 PM
Duration
51.86 ms
Status
200
Response Size
19 KB
Error
No

Performance Breakdown

Database
3.2% (2 queries)
View Rendering
13.4%
Application Logic
83.4%
Other Operations
0.0%
Total Operations
6
Slowest Operation
51.86 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 46.6ms 93.3ms 139.9ms 186.6ms

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 comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 2 ms 3.9%
users/index 25 ms 48.2%
api/v1/users#index 52 ms 100.0%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 4 ms 7.7%
api/v1/users#index 52 ms 100.0%
api/v1/users#index 52 ms 100.0%