Request Details

Route
/api_complex GET
Timestamp
Sep 23, 2026 1:38 AM
Duration
136.5 ms
Status
201
Response Size
64 KB
Error
No

Performance Breakdown

Database
7.9% (5 queries)
View Rendering
5.2%
Application Logic
86.9%
Other Operations
0.0%
Total Operations
19
Slowest Operation
136.5 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 353.6ms 707.3ms 1060.9ms 1414.5ms

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 137 ms 100.0%
home#api_complex 137 ms 100.0%
home#api_complex 137 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... 16 ms 11.7%
home#api_complex 137 ms 100.0%
layouts/application 34 ms 24.9%
home#api_complex 137 ms 100.0%
layouts/application 14 ms 10.3%
users/index 6 ms 4.4%
home/index 13 ms 9.5%
home#api_complex 137 ms 100.0%
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 > ? 29 ms 21.2%
home#api_complex 137 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 29 ms 21.2%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 30 ms 22.0%
SELECT * FROM users WHERE id = ? 8 ms 5.9%
home#api_complex 137 ms 100.0%
home#api_complex 137 ms 100.0%
home/index 7 ms 5.1%