Request Details

Route
/api_simple GET
Timestamp
Sep 21, 2026 6:35 AM
Duration
22.54 ms
Status
201
Response Size
1.5 KB
Error
No

Performance Breakdown

Database
55.6% (3 queries)
View Rendering
10.5%
Application Logic
33.9%
Other Operations
0.0%
Total Operations
6
Slowest Operation
31.0 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 33.3ms 66.5ms 99.8ms 133.1ms

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
home#api_simple 23 ms 100.0%
SELECT COUNT(*) FROM comments WHERE post_id = ? 28 ms 124.2%
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... 31 ms 137.6%
home#api_simple 23 ms 100.0%
layouts/application 14 ms 62.1%
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... 15 ms 66.6%