Request Details

Route
/api_complex GET
Timestamp
Sep 21, 2026 2:11 AM
Duration
240.86 ms
Status
200
Response Size
38 KB
Error
No

Performance Breakdown

Database
4.7% (4 queries)
View Rendering
8.0%
Application Logic
87.2%
Other Operations
0.0%
Total Operations
13
Slowest Operation
240.86 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 345.1ms 690.1ms 1035.2ms 1380.3ms

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.*, 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... 23 ms 9.5%
layouts/application 36 ms 14.9%
SELECT id, name FROM users WHERE email = ? 25 ms 10.4%
home#api_complex 241 ms 100.0%
home#api_complex 241 ms 100.0%
DELETE FROM posts WHERE id = ? 10 ms 4.2%
home/index 7 ms 2.9%
home#api_complex 241 ms 100.0%
layouts/application 29 ms 12.0%
home#api_complex 241 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 7 ms 2.9%
users/index 39 ms 16.2%
home#api_complex 241 ms 100.0%