Request Details

Route
/api_complex GET
Timestamp
Sep 16, 2026 12:32 AM
Duration
118.08 ms
Status
201
Response Size
69 KB
Error
No

Performance Breakdown

Database
8.0% (6 queries)
View Rendering
12.7%
Application Logic
79.2%
Other Operations
0.0%
Total Operations
20
Slowest Operation
118.08 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 260.9ms 521.8ms 782.7ms 1043.6ms

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 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... 20 ms 16.9%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 16 ms 13.6%
posts/show 18 ms 15.2%
posts/show 16 ms 13.6%
home/index 34 ms 28.8%
home#api_complex 118 ms 100.0%
SELECT name FROM users 2 ms 1.7%
layouts/application 16 ms 13.6%
home#api_complex 118 ms 100.0%
SELECT * FROM posts WHERE title LIKE ? AND content LIKE ? AND LOWER(title) LIKE ? AND UPPER(content) LIKE ? 11 ms 9.3%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 11 ms 9.3%
home#api_complex 118 ms 100.0%
home#api_complex 118 ms 100.0%
home#api_complex 118 ms 100.0%
home#api_complex 118 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... 24 ms 20.3%
posts/show 8 ms 6.8%
posts/show 5 ms 4.2%
users/index 36 ms 30.5%
home#api_complex 118 ms 100.0%