Request Details

Route
/api_complex GET
Timestamp
Sep 11, 2026 1:26 PM
Duration
198.88 ms
Status
200
Response Size
38 KB
Error
No

Performance Breakdown

Database
2.8% (2 queries)
View Rendering
5.4%
Application Logic
91.9%
Other Operations
0.0%
Total Operations
11
Slowest Operation
198.88 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 270.6ms 541.2ms 811.8ms 1082.4ms

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 posts WHERE created_at > ? 9 ms 4.5%
layouts/application 12 ms 6.0%
posts/show 20 ms 10.1%
home#api_complex 199 ms 100.0%
home#api_complex 199 ms 100.0%
home#api_complex 199 ms 100.0%
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... 21 ms 10.6%
home/index 12 ms 6.0%
home#api_complex 199 ms 100.0%
home#api_complex 199 ms 100.0%
layouts/application 14 ms 7.0%