Request Details

Route
/api_complex GET
Timestamp
Sep 13, 2026 5:51 AM
Duration
88.52 ms
Status
201
Response Size
55 KB
Error
No

Performance Breakdown

Database
18.4% (4 queries)
View Rendering
17.8%
Application Logic
63.8%
Other Operations
0.0%
Total Operations
14
Slowest Operation
88.52 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 138.8ms 277.5ms 416.3ms 555.1ms

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 name FROM users 33 ms 37.3%
posts/show 16 ms 18.1%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 29 ms 32.8%
home#api_complex 89 ms 100.0%
home/index 10 ms 11.3%
users/index 34 ms 38.4%
home#api_complex 89 ms 100.0%
home#api_complex 89 ms 100.0%
home/index 9 ms 10.2%
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... 15 ms 16.9%
layouts/application 21 ms 23.7%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 25 ms 28.2%
home#api_complex 89 ms 100.0%
layouts/application 9 ms 10.2%