Request Details

Route
/api_complex GET
Timestamp
Sep 11, 2026 2:01 PM
Duration
214.21 ms
Status
201
Response Size
22 KB
Error
No

Performance Breakdown

Database
13.1% (3 queries)
View Rendering
20.6%
Application Logic
66.3%
Other Operations
0.0%
Total Operations
11
Slowest Operation
214.21 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 161.6ms 323.2ms 484.8ms 646.4ms

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
layouts/application 31 ms 14.5%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 34 ms 15.9%
users/index 23 ms 10.7%
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... 31 ms 14.5%
layouts/application 13 ms 6.1%
home#api_complex 214 ms 100.0%
users/index 11 ms 5.1%
home/index 30 ms 14.0%
home#api_complex 214 ms 100.0%
posts/show 25 ms 11.7%
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 9.3%