Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 3:31 AM
Duration
108.12 ms
Status
200
Response Size
62 KB
Error
No

Performance Breakdown

Database
5.1% (4 queries)
View Rendering
10.8%
Application Logic
84.0%
Other Operations
0.0%
Total Operations
25
Slowest Operation
108.12 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 418.1ms 836.3ms 1254.4ms 1672.5ms

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_complex 108 ms 100.0%
home#api_complex 108 ms 100.0%
home#api_complex 108 ms 100.0%
home#api_complex 108 ms 100.0%
home#api_complex 108 ms 100.0%
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... 28 ms 25.9%
SELECT * FROM users WHERE id = ? 18 ms 16.6%
home#api_complex 108 ms 100.0%
layouts/application 30 ms 27.7%
home#api_complex 108 ms 100.0%
home/index 30 ms 27.7%
home#api_complex 108 ms 100.0%
users/index 20 ms 18.5%
home/index 23 ms 21.3%
SELECT name FROM users 23 ms 21.3%
home#api_complex 108 ms 100.0%
posts/show 20 ms 18.5%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 17 ms 15.7%
home#api_complex 108 ms 100.0%
posts/show 15 ms 13.9%
home#api_complex 108 ms 100.0%
posts/show 5 ms 4.6%
home#api_complex 108 ms 100.0%
home#api_complex 108 ms 100.0%
layouts/application 38 ms 35.1%