Request Details

Route
/api_simple GET
Timestamp
Sep 14, 2026 9:47 AM
Duration
11.98 ms
Status
204
Response Size
1.6 KB
Error
No

Performance Breakdown

Database
16.8% (1 query)
View Rendering
57.9%
Application Logic
25.2%
Other Operations
0.0%
Total Operations
5
Slowest Operation
39.0 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 23.7ms 47.5ms 71.2ms 95.0ms

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/index 39 ms 325.4%
users/index 16 ms 133.5%
home#api_simple 12 ms 100.0%
home#api_simple 12 ms 100.0%
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... 16 ms 133.5%