Request Details

Route
/api_complex GET
Timestamp
Sep 09, 2026 1:04 PM
Duration
186.39 ms
Status
201
Response Size
82 KB
Error
No

Performance Breakdown

Database
2.2% (4 queries)
View Rendering
7.4%
Application Logic
90.3%
Other Operations
0.0%
Total Operations
16
Slowest Operation
186.39 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 412.8ms 825.5ms 1238.3ms 1651.1ms

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
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 23 ms 12.3%
home#api_complex 186 ms 100.0%
layouts/application 19 ms 10.2%
home/index 37 ms 19.9%
home#api_complex 186 ms 100.0%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 2 ms 1.1%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 7 ms 3.8%
home#api_complex 186 ms 100.0%
layouts/application 38 ms 20.4%
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... 5 ms 2.7%
home#api_complex 186 ms 100.0%
home#api_complex 186 ms 100.0%
home#api_complex 186 ms 100.0%
layouts/application 29 ms 15.6%
home#api_complex 186 ms 100.0%
home#api_complex 186 ms 100.0%