Request Details

Route
/api_complex GET
Timestamp
Sep 12, 2026 11:50 PM
Duration
150.5 ms
Status
200
Response Size
55 KB
Error
No

Performance Breakdown

Database
15.5% (7 queries)
View Rendering
10.7%
Application Logic
73.8%
Other Operations
0.0%
Total Operations
18
Slowest Operation
150.5 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 305.8ms 611.5ms 917.3ms 1223.0ms

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
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 18 ms 12.0%
home#api_complex 151 ms 100.0%
home/index 31 ms 20.6%
posts/show 18 ms 12.0%
layouts/application 30 ms 19.9%
home#api_complex 151 ms 100.0%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 16 ms 10.6%
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... 35 ms 23.3%
SELECT * FROM posts WHERE created_at > ? 28 ms 18.6%
home#api_complex 151 ms 100.0%
users/index 30 ms 19.9%
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... 34 ms 22.6%
home#api_complex 151 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... 29 ms 19.3%
home#api_complex 151 ms 100.0%
home#api_complex 151 ms 100.0%
SELECT id, name FROM users WHERE email = ? 29 ms 19.3%
posts/show 22 ms 14.6%