Request Details

Route
/api_complex GET
Timestamp
Sep 09, 2026 5:27 PM
Duration
210.47 ms
Status
200
Response Size
34 KB
Error
No

Performance Breakdown

Database
12.1% (5 queries)
View Rendering
13.1%
Application Logic
74.8%
Other Operations
0.0%
Total Operations
13
Slowest Operation
210.47 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 211.1ms 422.2ms 633.3ms 844.4ms

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
posts/show 30 ms 14.3%
home/index 12 ms 5.7%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 15 ms 7.1%
layouts/application 23 ms 10.9%
SELECT name FROM users 24 ms 11.4%
home#api_complex 210 ms 100.0%
home#api_complex 210 ms 100.0%
layouts/application 18 ms 8.6%
SELECT id, name FROM users WHERE email = ? 28 ms 13.3%
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... 23 ms 10.9%
SELECT * FROM users WHERE id = ? 12 ms 5.7%
home/index 28 ms 13.3%
home#api_complex 210 ms 100.0%