Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 6:33 PM
Duration
130.83 ms
Status
201
Response Size
53 KB
Error
No

Performance Breakdown

Database
11.2% (7 queries)
View Rendering
15.9%
Application Logic
72.9%
Other Operations
0.0%
Total Operations
25
Slowest Operation
130.83 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 314.2ms 628.4ms 942.6ms 1256.8ms

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 131 ms 100.0%
home#api_complex 131 ms 100.0%
posts/show 11 ms 8.4%
users/index 9 ms 6.9%
posts/show 27 ms 20.6%
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... 14 ms 10.7%
users/index 16 ms 12.2%
home#api_complex 131 ms 100.0%
home/index 13 ms 9.9%
home#api_complex 131 ms 100.0%
home/index 10 ms 7.6%
home#api_complex 131 ms 100.0%
home/index 34 ms 26.0%
users/index 38 ms 29.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 19 ms 14.5%
home#api_complex 131 ms 100.0%
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... 35 ms 26.8%
SELECT users.*, posts.*, comments.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, AVG(posts.view_count) as avg_views, MAX(comments.created_at) as latest_comment FROM users LEFT JOIN posts ON users.id = posts.use... 10 ms 7.6%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 22 ms 16.8%
SELECT id, name, email FROM users WHERE id = ? 11 ms 8.4%
home#api_complex 131 ms 100.0%
users/index 8 ms 6.1%
SELECT users.* FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id WHERE users.active = ? AND posts.published = ? AND comments.approved = ? OR users.created_at > ? AND posts.created_at > ? AND commen... 30 ms 22.9%
posts/show 11 ms 8.4%
home/index 23 ms 17.6%