Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 5:43 PM
Duration
109.73 ms
Status
201
Response Size
60 KB
Error
No

Performance Breakdown

Database
5.2% (5 queries)
View Rendering
13.8%
Application Logic
81.0%
Other Operations
0.0%
Total Operations
21
Slowest Operation
109.73 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 304.9ms 609.8ms 914.7ms 1219.6ms

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 users.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, SUM(posts.view_count) as total_views, AVG(posts.view_count) as avg_views, MIN(posts.created_at) as first_post, MAX(posts.created_at) as latest_post FR... 6 ms 5.5%
home#api_complex 110 ms 100.0%
home#api_complex 110 ms 100.0%
users/index 31 ms 28.3%
home#api_complex 110 ms 100.0%
home#api_complex 110 ms 100.0%
layouts/application 9 ms 8.2%
home#api_complex 110 ms 100.0%
home#api_complex 110 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... 19 ms 17.3%
users/index 38 ms 34.6%
layouts/application 28 ms 25.5%
posts/show 17 ms 15.5%
layouts/application 13 ms 11.8%
home#api_complex 110 ms 100.0%
SELECT COUNT(*) FROM comments WHERE post_id = ? 7 ms 6.4%
home#api_complex 110 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 25 ms 22.8%
home#api_complex 110 ms 100.0%
home/index 32 ms 29.2%
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 6.4%