Request Details

Route
/api_complex GET
Timestamp
Sep 23, 2026 3:44 AM
Duration
127.02 ms
Status
204
Response Size
28 KB
Error
No

Performance Breakdown

Database
7.0% (3 queries)
View Rendering
10.6%
Application Logic
82.4%
Other Operations
0.0%
Total Operations
14
Slowest Operation
127.02 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 269.8ms 539.6ms 809.3ms 1079.1ms

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 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... 26 ms 20.5%
users/index 26 ms 20.5%
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... 34 ms 26.8%
home#api_complex 127 ms 100.0%
posts/show 37 ms 29.1%
home#api_complex 127 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... 16 ms 12.6%
home#api_complex 127 ms 100.0%
home#api_complex 127 ms 100.0%
home#api_complex 127 ms 100.0%
home#api_complex 127 ms 100.0%
home/index 11 ms 8.7%
layouts/application 40 ms 31.5%
home#api_complex 127 ms 100.0%