Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 12:08 PM
Duration
147.64 ms
Status
204
Response Size
29 KB
Error
No

Performance Breakdown

Database
4.5% (5 queries)
View Rendering
8.1%
Application Logic
87.4%
Other Operations
0.0%
Total Operations
21
Slowest Operation
147.64 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 422.1ms 844.2ms 1266.3ms 1688.4ms

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
home#api_complex 148 ms 100.0%
users/index 15 ms 10.2%
home#api_complex 148 ms 100.0%
layouts/application 19 ms 12.9%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 17 ms 11.5%
home#api_complex 148 ms 100.0%
SELECT * FROM users WHERE id = ? 12 ms 8.1%
home#api_complex 148 ms 100.0%
home#api_complex 148 ms 100.0%
layouts/application 37 ms 25.1%
home#api_complex 148 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 3 ms 2.0%
layouts/application 28 ms 19.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 24 ms 16.3%
home#api_complex 148 ms 100.0%
users/index 8 ms 5.4%
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... 20 ms 13.5%
home#api_complex 148 ms 100.0%
home#api_complex 148 ms 100.0%
layouts/application 29 ms 19.6%
home#api_complex 148 ms 100.0%