Request Details

Route
/api_complex GET
Timestamp
Sep 10, 2026 3:39 PM
Duration
203.14 ms
Status
200
Response Size
20 KB
Error
No

Performance Breakdown

Database
9.8% (2 queries)
View Rendering
16.2%
Application Logic
74.0%
Other Operations
0.0%
Total Operations
10
Slowest Operation
203.14 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 137.3ms 274.6ms 412.0ms 549.3ms

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
DELETE FROM comments WHERE created_at < ? 26 ms 12.8%
layouts/application 6 ms 3.0%
home#api_complex 203 ms 100.0%
posts/show 5 ms 2.5%
home/index 13 ms 6.4%
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... 28 ms 13.8%
posts/show 22 ms 10.8%
home/index 20 ms 9.8%
users/index 23 ms 11.3%
home#api_complex 203 ms 100.0%