Request Details

Route
/api_complex GET
Timestamp
Sep 09, 2026 9:50 PM
Duration
758.8 ms
Status
200
Response Size
37 KB
Error
No

Performance Breakdown

Database
0.8% (5 queries)
View Rendering
1.8%
Application Logic
97.4%
Other Operations
0.0%
Total Operations
22
Slowest Operation
758.8 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 2142.7ms 4285.4ms 6428.1ms 8570.8ms

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 16 ms 2.1%
home#api_complex 759 ms 100.0%
posts/show 8 ms 1.1%
posts/show 30 ms 4.0%
posts/show 23 ms 3.0%
SELECT * FROM users WHERE id = ? 16 ms 2.1%
layouts/application 27 ms 3.6%
home#api_complex 759 ms 100.0%
SELECT id, name FROM users WHERE email = ? 15 ms 2.0%
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... 2 ms 0.3%
layouts/application 27 ms 3.6%
home#api_complex 759 ms 100.0%
home#api_complex 759 ms 100.0%
home#api_complex 759 ms 100.0%
SELECT posts.title, posts.content, users.name FROM posts JOIN users ON posts.user_id = users.id WHERE posts.published = ? 23 ms 3.0%
home#api_complex 759 ms 100.0%
home#api_complex 759 ms 100.0%
home#api_complex 759 ms 100.0%
home#api_complex 759 ms 100.0%
posts/show 37 ms 4.9%
home#api_complex 759 ms 100.0%
home#api_complex 759 ms 100.0%