Request Details

Route
/api_complex GET
Timestamp
Sep 11, 2026 8:25 AM
Duration
86.69 ms
Status
204
Response Size
53 KB
Error
No

Performance Breakdown

Database
3.9% (4 queries)
View Rendering
12.7%
Application Logic
83.4%
Other Operations
0.0%
Total Operations
20
Slowest Operation
86.69 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 285.9ms 571.8ms 857.7ms 1143.6ms

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
layouts/application 13 ms 15.0%
home#api_complex 87 ms 100.0%
home#api_complex 87 ms 100.0%
layouts/application 31 ms 35.8%
users/index 32 ms 36.9%
home#api_complex 87 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... 12 ms 13.8%
home#api_complex 87 ms 100.0%
home#api_complex 87 ms 100.0%
home#api_complex 87 ms 100.0%
home#api_complex 87 ms 100.0%
home#api_complex 87 ms 100.0%
home#api_complex 87 ms 100.0%
home#api_complex 87 ms 100.0%
posts/show 32 ms 36.9%
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... 1 ms 1.2%
home#api_complex 87 ms 100.0%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 13 ms 15.0%
layouts/application 37 ms 42.7%
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... 19 ms 21.9%