Request Details

Route
/api_complex GET
Timestamp
Sep 23, 2026 2:23 AM
Duration
154.45 ms
Status
201
Response Size
64 KB
Error
No

Performance Breakdown

Database
4.0% (4 queries)
View Rendering
10.3%
Application Logic
85.7%
Other Operations
0.0%
Total Operations
24
Slowest Operation
154.45 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 540.8ms 1081.7ms 1622.5ms 2163.3ms

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/index 27 ms 17.5%
home#api_complex 154 ms 100.0%
home#api_complex 154 ms 100.0%
posts/show 22 ms 14.2%
posts/show 40 ms 25.9%
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... 32 ms 20.7%
users/index 14 ms 9.1%
home#api_complex 154 ms 100.0%
users/index 39 ms 25.3%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 14 ms 9.1%
home#api_complex 154 ms 100.0%
home/index 39 ms 25.3%
home#api_complex 154 ms 100.0%
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... 23 ms 14.9%
home#api_complex 154 ms 100.0%
home#api_complex 154 ms 100.0%
home#api_complex 154 ms 100.0%
home#api_complex 154 ms 100.0%
home#api_complex 154 ms 100.0%
home#api_complex 154 ms 100.0%
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 > ? 18 ms 11.7%
posts/show 18 ms 11.7%
home/index 24 ms 15.5%
home#api_complex 154 ms 100.0%