Request Details

Route
/api_complex GET
Timestamp
Sep 23, 2026 8:10 AM
Duration
114.52 ms
Status
204
Response Size
30 KB
Error
No

Performance Breakdown

Database
8.7% (4 queries)
View Rendering
23.6%
Application Logic
67.7%
Other Operations
0.0%
Total Operations
12
Slowest Operation
114.52 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 126.9ms 253.8ms 380.7ms 507.6ms

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
home#api_complex 115 ms 100.0%
posts/show 20 ms 17.5%
home#api_complex 115 ms 100.0%
home#api_complex 115 ms 100.0%
home/index 39 ms 34.1%
SELECT name FROM users 21 ms 18.3%
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 0.9%
users/index 31 ms 27.1%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 15 ms 13.1%
layouts/application 21 ms 18.3%
home/index 9 ms 7.9%
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... 7 ms 6.1%