Request Details

Route
/api_complex GET
Timestamp
Sep 23, 2026 1:17 AM
Duration
194.49 ms
Status
200
Response Size
76 KB
Error
No

Performance Breakdown

Database
0.3% (2 queries)
View Rendering
15.3%
Application Logic
84.4%
Other Operations
0.0%
Total Operations
16
Slowest Operation
194.49 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 345.5ms 691.0ms 1036.5ms 1382.0ms

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 194 ms 100.0%
posts/show 7 ms 3.6%
home#api_complex 194 ms 100.0%
home#api_complex 194 ms 100.0%
home#api_complex 194 ms 100.0%
posts/show 20 ms 10.3%
users/index 20 ms 10.3%
home/index 36 ms 18.5%
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... 3 ms 1.5%
users/index 37 ms 19.0%
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... 1 ms 0.5%
layouts/application 27 ms 13.9%
home#api_complex 194 ms 100.0%
home#api_complex 194 ms 100.0%
posts/show 29 ms 14.9%
layouts/application 35 ms 18.0%