Request Details

Route
/api_complex GET
Timestamp
Sep 14, 2026 2:05 PM
Duration
235.68 ms
Status
201
Response Size
53 KB
Error
No

Performance Breakdown

Database
4.7% (6 queries)
View Rendering
13.9%
Application Logic
81.4%
Other Operations
0.0%
Total Operations
18
Slowest Operation
235.68 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 362.1ms 724.2ms 1086.3ms 1448.4ms

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 31 ms 13.2%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 30 ms 12.7%
layouts/application 35 ms 14.9%
posts/show 23 ms 9.8%
home#api_complex 236 ms 100.0%
home#api_complex 236 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... 2 ms 0.8%
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... 2 ms 0.8%
users/index 37 ms 15.7%
home#api_complex 236 ms 100.0%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 9 ms 3.8%
posts/show 27 ms 11.5%
users/index 10 ms 4.2%
home#api_complex 236 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... 24 ms 10.2%
SELECT * FROM users WHERE id = ? 1 ms 0.4%
home#api_complex 236 ms 100.0%
layouts/application 39 ms 16.5%