Request Details

Route
/api_complex GET
Timestamp
Sep 17, 2026 4:33 AM
Duration
176.98 ms
Status
201
Response Size
12 KB
Error
No

Performance Breakdown

Database
4.9% (5 queries)
View Rendering
8.5%
Application Logic
86.6%
Other Operations
0.0%
Total Operations
25
Slowest Operation
176.98 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 561.7ms 1123.4ms 1685.1ms 2246.8ms

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 177 ms 100.0%
home/index 13 ms 7.3%
posts/show 26 ms 14.7%
layouts/application 40 ms 22.6%
layouts/application 8 ms 4.5%
home#api_complex 177 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 16 ms 9.0%
home#api_complex 177 ms 100.0%
layouts/application 25 ms 14.1%
home#api_complex 177 ms 100.0%
layouts/application 9 ms 5.1%
home#api_complex 177 ms 100.0%
SELECT * FROM users WHERE id = ? 34 ms 19.2%
layouts/application 23 ms 13.0%
home#api_complex 177 ms 100.0%
home#api_complex 177 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... 3 ms 1.7%
home#api_complex 177 ms 100.0%
layouts/application 36 ms 20.3%
DELETE FROM posts WHERE id = ? 30 ms 17.0%
home#api_complex 177 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... 26 ms 14.7%
home/index 11 ms 6.2%
home#api_complex 177 ms 100.0%
home#api_complex 177 ms 100.0%