Request Details

Route
/api_complex GET
Timestamp
Sep 11, 2026 4:01 PM
Duration
156.39 ms
Status
200
Response Size
32 KB
Error
No

Performance Breakdown

Database
4.7% (3 queries)
View Rendering
18.9%
Application Logic
76.4%
Other Operations
0.0%
Total Operations
19
Slowest Operation
156.39 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 358.2ms 716.4ms 1074.5ms 1432.7ms

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 156 ms 100.0%
home/index 30 ms 19.2%
home#api_complex 156 ms 100.0%
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... 35 ms 22.4%
users/index 19 ms 12.1%
home#api_complex 156 ms 100.0%
home#api_complex 156 ms 100.0%
home#api_complex 156 ms 100.0%
home/index 29 ms 18.5%
users/index 23 ms 14.7%
users/index 32 ms 20.5%
home#api_complex 156 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 4 ms 2.6%
users/index 29 ms 18.5%
layouts/application 40 ms 25.6%
home/index 39 ms 24.9%
SELECT users.* FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id WHERE users.active = ? AND posts.published = ? AND comments.approved = ? OR users.created_at > ? AND posts.created_at > ? AND commen... 28 ms 17.9%
home#api_complex 156 ms 100.0%
home/index 30 ms 19.2%