Request Details

Route
/api_complex GET
Timestamp
Sep 23, 2026 5:43 AM
Duration
190.08 ms
Status
200
Response Size
25 KB
Error
No

Performance Breakdown

Database
4.0% (6 queries)
View Rendering
7.1%
Application Logic
88.9%
Other Operations
0.0%
Total Operations
22
Slowest Operation
190.08 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 480.9ms 961.9ms 1442.8ms 1923.7ms

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 190 ms 100.0%
layouts/application 21 ms 11.0%
home#api_complex 190 ms 100.0%
layouts/application 19 ms 10.0%
users/index 6 ms 3.2%
SELECT * FROM posts WHERE created_at > ? 6 ms 3.2%
home#api_complex 190 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... 26 ms 13.7%
layouts/application 17 ms 8.9%
home/index 9 ms 4.7%
home#api_complex 190 ms 100.0%
home#api_complex 190 ms 100.0%
UPDATE posts SET view_count = view_count + ? WHERE published = ? 26 ms 13.7%
posts/show 27 ms 14.2%
home/index 37 ms 19.5%
home#api_complex 190 ms 100.0%
home#api_complex 190 ms 100.0%
SELECT posts.* FROM posts WHERE title LIKE ? OR content LIKE ? 5 ms 2.6%
home#api_complex 190 ms 100.0%
home#api_complex 190 ms 100.0%
SELECT users.* FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id WHERE users.active = ? AND posts.published = ? AND comments.approved = ? OR users.created_at > ? AND posts.created_at > ? AND commen... 13 ms 6.8%
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... 1 ms 0.5%