Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 6:27 AM
Duration
190.64 ms
Status
204
Response Size
40 KB
Error
No

Performance Breakdown

Database
4.9% (3 queries)
View Rendering
4.6%
Application Logic
90.4%
Other Operations
0.0%
Total Operations
12
Slowest Operation
190.64 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 263.6ms 527.1ms 790.7ms 1054.2ms

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
users/index 6 ms 3.1%
home#api_complex 191 ms 100.0%
home#api_complex 191 ms 100.0%
layouts/application 18 ms 9.4%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 23 ms 12.1%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 5 ms 2.6%
home#api_complex 191 ms 100.0%
home#api_complex 191 ms 100.0%
home#api_complex 191 ms 100.0%
layouts/application 5 ms 2.6%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 24 ms 12.6%
layouts/application 20 ms 10.5%