Request Details

Route
/api_complex GET
Timestamp
Sep 10, 2026 1:05 AM
Duration
127.29 ms
Status
204
Response Size
32 KB
Error
No

Performance Breakdown

Database
9.0% (5 queries)
View Rendering
15.4%
Application Logic
75.6%
Other Operations
0.0%
Total Operations
19
Slowest Operation
127.29 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 252.7ms 505.4ms 758.1ms 1010.8ms

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
layouts/application 38 ms 29.9%
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... 25 ms 19.6%
posts/show 35 ms 27.5%
users/index 9 ms 7.1%
home#api_complex 127 ms 100.0%
users/index 14 ms 11.0%
home/index 10 ms 7.9%
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... 15 ms 11.8%
home#api_complex 127 ms 100.0%
posts/show 8 ms 6.3%
home#api_complex 127 ms 100.0%
home#api_complex 127 ms 100.0%
home#api_complex 127 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 11 ms 8.6%
users/index 25 ms 19.6%
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... 11 ms 8.6%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 29 ms 22.8%
home#api_complex 127 ms 100.0%
users/index 17 ms 13.4%