Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 10:10 PM
Duration
106.43 ms
Status
200
Response Size
75 KB
Error
No

Performance Breakdown

Database
2.5% (3 queries)
View Rendering
12.7%
Application Logic
84.7%
Other Operations
0.0%
Total Operations
13
Slowest Operation
106.43 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 188.4ms 376.8ms 565.2ms 753.6ms

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 106 ms 100.0%
users/index 30 ms 28.2%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 11 ms 10.3%
home/index 24 ms 22.6%
users/index 9 ms 8.5%
home#api_complex 106 ms 100.0%
home#api_complex 106 ms 100.0%
home#api_complex 106 ms 100.0%
UPDATE posts SET view_count = view_count + ? WHERE published = ? 4 ms 3.8%
home#api_complex 106 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 4 ms 3.8%
home#api_complex 106 ms 100.0%
layouts/application 33 ms 31.0%