Request Details

Route
/api_complex GET
Timestamp
Sep 19, 2026 10:20 AM
Duration
115.73 ms
Status
204
Response Size
33 KB
Error
No

Performance Breakdown

Database
7.5% (3 queries)
View Rendering
21.8%
Application Logic
70.8%
Other Operations
0.0%
Total Operations
16
Slowest Operation
115.73 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 204.4ms 408.8ms 613.2ms 817.6ms

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
posts/show 7 ms 6.0%
SELECT * FROM posts WHERE created_at > ? 31 ms 26.8%
home#api_complex 116 ms 100.0%
home#api_complex 116 ms 100.0%
home/index 29 ms 25.1%
home#api_complex 116 ms 100.0%
layouts/application 40 ms 34.6%
SELECT users.*, posts.*, comments.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, AVG(posts.view_count) as avg_views, MAX(comments.created_at) as latest_comment FROM users LEFT JOIN posts ON users.id = posts.use... 20 ms 17.3%
SELECT name FROM users 10 ms 8.6%
home#api_complex 116 ms 100.0%
layouts/application 11 ms 9.5%
users/index 33 ms 28.5%
posts/show 5 ms 4.3%
home/index 27 ms 23.3%
users/index 26 ms 22.5%
home#api_complex 116 ms 100.0%