Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 2:06 PM
Duration
100.06 ms
Status
204
Response Size
53 KB
Error
No

Performance Breakdown

Database
4.8% (3 queries)
View Rendering
18.7%
Application Logic
76.5%
Other Operations
0.0%
Total Operations
18
Slowest Operation
100.06 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 261.6ms 523.2ms 784.9ms 1046.5ms

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 COUNT(*) FROM comments WHERE post_id = ? 10 ms 10.0%
home#api_complex 100 ms 100.0%
home#api_complex 100 ms 100.0%
home#api_complex 100 ms 100.0%
home#api_complex 100 ms 100.0%
layouts/application 29 ms 29.0%
home#api_complex 100 ms 100.0%
home/index 34 ms 34.0%
home#api_complex 100 ms 100.0%
posts/show 25 ms 25.0%
home#api_complex 100 ms 100.0%
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... 17 ms 17.0%
layouts/application 21 ms 21.0%
layouts/application 23 ms 23.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 23 ms 23.0%
home#api_complex 100 ms 100.0%
posts/show 28 ms 28.0%
layouts/application 36 ms 36.0%