Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 6:48 PM
Duration
269.42 ms
Status
201
Response Size
32 KB
Error
No

Performance Breakdown

Database
4.8% (7 queries)
View Rendering
8.2%
Application Logic
87.0%
Other Operations
0.0%
Total Operations
22
Slowest Operation
269.42 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 619.1ms 1238.2ms 1857.3ms 2476.4ms

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
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 12 ms 4.5%
home#api_complex 269 ms 100.0%
home#api_complex 269 ms 100.0%
posts/show 36 ms 13.4%
home/index 30 ms 11.1%
layouts/application 34 ms 12.6%
posts/show 33 ms 12.2%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 20 ms 7.4%
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... 13 ms 4.8%
SELECT * FROM posts WHERE created_at > ? 3 ms 1.1%
home#api_complex 269 ms 100.0%
home#api_complex 269 ms 100.0%
users/index 40 ms 14.8%
home#api_complex 269 ms 100.0%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 26 ms 9.7%
home#api_complex 269 ms 100.0%
SELECT name FROM users 16 ms 5.9%
SELECT * FROM posts WHERE created_at > ? 29 ms 10.8%
home/index 17 ms 6.3%
posts/show 12 ms 4.5%
home#api_complex 269 ms 100.0%
home#api_complex 269 ms 100.0%