Request Details

Route
/api_complex GET
Timestamp
Sep 23, 2026 4:55 AM
Duration
214.02 ms
Status
200
Response Size
70 KB
Error
No

Performance Breakdown

Database
4.7% (4 queries)
View Rendering
7.0%
Application Logic
88.3%
Other Operations
0.0%
Total Operations
18
Slowest Operation
214.02 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 484.8ms 969.6ms 1454.4ms 1939.1ms

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 214 ms 100.0%
home#api_complex 214 ms 100.0%
home#api_complex 214 ms 100.0%
home#api_complex 214 ms 100.0%
home#api_complex 214 ms 100.0%
home#api_complex 214 ms 100.0%
users/index 5 ms 2.3%
posts/show 30 ms 14.0%
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... 22 ms 10.3%
home#api_complex 214 ms 100.0%
DELETE FROM posts WHERE id = ? 30 ms 14.0%
SELECT users.*, posts.*, comments.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, AVG(posts.view_count) as avg_views, MAX(comments.created_at) as latest_comment FROM users LEFT JOIN posts ON users.id = posts.use... 26 ms 12.1%
layouts/application 40 ms 18.7%
layouts/application 13 ms 6.1%
home/index 37 ms 17.3%
home#api_complex 214 ms 100.0%
users/index 10 ms 4.7%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 14 ms 6.5%