Request Details

Route
/api_complex GET
Timestamp
Sep 15, 2026 10:41 AM
Duration
106.4 ms
Status
201
Response Size
35 KB
Error
No

Performance Breakdown

Database
18.2% (6 queries)
View Rendering
16.2%
Application Logic
65.6%
Other Operations
0.0%
Total Operations
16
Slowest Operation
106.4 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 162.1ms 324.3ms 486.4ms 648.6ms

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 DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 32 ms 30.1%
home#api_complex 106 ms 100.0%
layouts/application 25 ms 23.5%
posts/show 13 ms 12.2%
home#api_complex 106 ms 100.0%
SELECT id, name FROM users WHERE email = ? 29 ms 27.3%
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... 24 ms 22.6%
home#api_complex 106 ms 100.0%
home#api_complex 106 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 26 ms 24.4%
layouts/application 6 ms 5.6%
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... 1 ms 0.9%
home/index 12 ms 11.3%
home/index 34 ms 32.0%
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... 6 ms 5.6%
home/index 15 ms 14.1%