Request Details

Route
/api/v1/users GET
Timestamp
Sep 22, 2026 10:43 AM
Duration
15.59 ms
Status
204
Response Size
16 KB
Error
No

Performance Breakdown

Database
14.5% (2 queries)
View Rendering
66.6%
Application Logic
18.9%
Other Operations
0.0%
Total Operations
6
Slowest Operation
30.0 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 20.6ms 41.3ms 61.9ms 82.6ms

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 users.*, posts.*, comments.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, AVG(posts.view_count) as avg_views, MAX(comments.created_at) as latest_comment FROM users LEFT JOIN posts ON users.id = posts.use... 11 ms 70.6%
home/index 19 ms 121.9%
api/v1/users#index 16 ms 100.0%
posts/show 6 ms 38.5%
layouts/application 30 ms 192.5%
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... 1 ms 6.4%