Request Details

Route
/api_complex GET
Timestamp
Sep 10, 2026 10:21 PM
Duration
123.67 ms
Status
201
Response Size
71 KB
Error
No

Performance Breakdown

Database
11.4% (8 queries)
View Rendering
22.9%
Application Logic
65.7%
Other Operations
0.0%
Total Operations
24
Slowest Operation
123.67 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 282.3ms 564.5ms 846.8ms 1129.0ms

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
users/index 34 ms 27.5%
home/index 30 ms 24.3%
home#api_complex 124 ms 100.0%
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... 18 ms 14.6%
home#api_complex 124 ms 100.0%
layouts/application 31 ms 25.1%
posts/show 16 ms 12.9%
users/index 39 ms 31.5%
home#api_complex 124 ms 100.0%
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... 21 ms 17.0%
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... 10 ms 8.1%
home/index 22 ms 17.8%
home#api_complex 124 ms 100.0%
home/index 31 ms 25.1%
SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ? 23 ms 18.6%
SELECT id, name FROM users WHERE email = ? 12 ms 9.7%
users/index 9 ms 7.3%
SELECT posts.title, posts.content, users.name FROM posts JOIN users ON posts.user_id = users.id WHERE posts.published = ? 1 ms 0.8%
layouts/application 12 ms 9.7%
home#api_complex 124 ms 100.0%
home#api_complex 124 ms 100.0%
SELECT name FROM users 13 ms 10.5%
users/index 34 ms 27.5%
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... 31 ms 25.1%