Request Details

Route
/api_complex GET
Timestamp
Sep 20, 2026 8:39 PM
Duration
231.07 ms
Status
201
Response Size
43 KB
Error
No

Performance Breakdown

Database
2.8% (6 queries)
View Rendering
5.6%
Application Logic
91.5%
Other Operations
0.0%
Total Operations
24
Slowest Operation
231.07 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 757.2ms 1514.4ms 2271.6ms 3028.8ms

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 231 ms 100.0%
home#api_complex 231 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 18 ms 7.8%
home#api_complex 231 ms 100.0%
SELECT id, name, email FROM users WHERE id = ? 10 ms 4.3%
home#api_complex 231 ms 100.0%
users/index 31 ms 13.4%
home#api_complex 231 ms 100.0%
home#api_complex 231 ms 100.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 4 ms 1.7%
home/index 17 ms 7.4%
home/index 32 ms 13.8%
SELECT name FROM users 8 ms 3.5%
home#api_complex 231 ms 100.0%
layouts/application 27 ms 11.7%
SELECT * FROM posts WHERE created_at > ? 14 ms 6.1%
home#api_complex 231 ms 100.0%
layouts/application 32 ms 13.8%
home#api_complex 231 ms 100.0%
users/index 32 ms 13.8%
home#api_complex 231 ms 100.0%
home#api_complex 231 ms 100.0%
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... 31 ms 13.4%
home#api_complex 231 ms 100.0%