Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 1:57 AM
Duration
178.93 ms
Status
201
Response Size
33 KB
Error
No

Performance Breakdown

Database
5.7% (4 queries)
View Rendering
12.1%
Application Logic
82.2%
Other Operations
0.0%
Total Operations
16
Slowest Operation
178.93 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 326.7ms 653.3ms 980.0ms 1306.6ms

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
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 33 ms 18.4%
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 > ? 25 ms 14.0%
posts/show 24 ms 13.4%
home#api_complex 179 ms 100.0%
home#api_complex 179 ms 100.0%
layouts/application 32 ms 17.9%
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 > ? 10 ms 5.6%
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... 7 ms 3.9%
home#api_complex 179 ms 100.0%
home#api_complex 179 ms 100.0%
users/index 12 ms 6.7%
home/index 40 ms 22.4%
home#api_complex 179 ms 100.0%
home#api_complex 179 ms 100.0%
posts/show 38 ms 21.2%
posts/show 12 ms 6.7%