Request Details

Route
/api_simple GET
Timestamp
Sep 22, 2026 8:08 AM
Duration
28.76 ms
Status
200
Response Size
944 Bytes
Error
No

Performance Breakdown

Database
76.6% (5 queries)
View Rendering
0.0%
Application Logic
23.4%
Other Operations
0.0%
Total Operations
6
Slowest Operation
29.0 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
Database
0.0ms 30.7ms 61.4ms 92.1ms 122.8ms

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 name FROM users 15 ms 52.1%
DELETE FROM posts WHERE id = ? 10 ms 34.8%
SELECT users.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, SUM(posts.view_count) as total_views, AVG(posts.view_count) as avg_views, MIN(posts.created_at) as first_post, MAX(posts.created_at) as latest_post FR... 26 ms 90.4%
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 > ? 14 ms 48.7%
home#api_simple 29 ms 100.0%
SELECT name FROM users 29 ms 100.8%