Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 4:59 PM
Duration
173.75 ms
Status
204
Response Size
27 KB
Error
No

Performance Breakdown

Database
4.9% (3 queries)
View Rendering
12.8%
Application Logic
82.3%
Other Operations
0.0%
Total Operations
17
Slowest Operation
173.75 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 316.6ms 633.3ms 949.9ms 1266.5ms

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 174 ms 100.0%
home/index 24 ms 13.8%
users/index 33 ms 19.0%
home#api_complex 174 ms 100.0%
home/index 31 ms 17.8%
home#api_complex 174 ms 100.0%
users/index 11 ms 6.3%
home#api_complex 174 ms 100.0%
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 16.7%
users/index 14 ms 8.1%
home/index 19 ms 10.9%
layouts/application 9 ms 5.2%
home#api_complex 174 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... 31 ms 17.8%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 2 ms 1.2%
users/index 21 ms 12.1%
home#api_complex 174 ms 100.0%